Axial Piston Variable Pump
A4VG
Data sheet
Series 32
Size 28 to 250
Nominal pressure 400 bar
Maximum pressure 450 bar
Closed circuit
Features
Variable axial piston pump of swashplate design for hydro- –
static drives in closed circuit.
The flow is proportional to the drive speed and displacement. –
The flow can be infinitely varied by adjusting the swashplate –
angle.
Flow direction changes smoothly when the swashplate is –
moved through the neutral position.
A wide range of highly adaptable control devices with –
different control and regulating functions, for all important
applications.
Two pressure-relief valves are provided on the high-pressure –
side to protect the hydrostatic transmission (pump and mo-
tor) from overload.
The high-pressure relief valves also function as boost valves. –
The integrated boost pump acts as a feed pump and control –
pressure supply.
The maximum boost pressure is limited by a built-in low- –
pressure relief valve.
As standard with integrated pressure cut-off –
RE 92003/06.12 1/68
Replaces: 06.09
Contents
Ordering code for standard program 2
Technical data 5
NV – Version without control module 11
DG – Hydraulic control, direct controlled 11
HD –
Proportional control hydraulic, pilot-pressure related
12
HW –
Proportional control hydraulic, mechanical servo
13
EP –
Proportional control electric
14
EZ – Two-point control electric 15
DA – Automatic control speed-related 16
Dimensions size 28 to 250 18
Through drive dimensions 50
Overview of mounting options 52
Combination pumps A4VG + A4VG 53
High-pressure relief valves 54
Pressure cut-off 55
Mechanical stroke limiter 56
Ports X
3
and X
4
for stroking chamber pressure 56
Filtration boost circuit / external supply 57
Swivel angle sensor 61
Connector for solenoids 62
Rotary inch valve 63
Installation dimensions for coupling assembly 64
Installation instructions 65
General instructions 68
2/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Ordering code for standard program
A4V G D / 32 – N
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22
Axial piston unit
01
Swashplate design, variable, nominal pressure 400 bar, maximum pressure 450 bar
A4V
Operating mode
02
Pump, closed circuit
G
Sizes (NG)
03
Geometric displacement, see table of values on page 8
28 40 56 71 90 125 180 250
Control devices 28 40 56 71 90 125 180 250
04
Without control module
l l l l l l l l
NV
Proportional control
hydraulic
pilot-pressure related p = 6 to 18 bar
l l l l l l l l
HD3
mechanical servo
1)
l l l l l l l l
HW
Proportional control
electric
U = 12 V DC
l l l l l l l l
EP3
U = 24 V DC
l l l l l l l l
EP4
Two-point control electric
U = 12 V DC
l l l l l l l l
EZ1
U = 24 V DC
l l l l l l l l
EZ2
Automatic control speed-related
U = 12 V DC
l l l l l l l l
DA1
U = 24 V DC
l l l l l l l l
DA2
Hydraulic control, direct controlled
l l l l l l l l
DG
Pressure cut-off (see page 55) 28 40 56 71 90 125 180 250
05
Pressure cut-off (standard)
l l l l l l l l
D
Neutral position switch (only for HW, see page 13) 28 40 56 71 90 125 180 250
06
Without neutral position switch (without code)
l l l l l l l l
Neutral position switch
l l l l l l l l
L
Mechanical stroke limiter (see page 56) 28 40 56 71 90 125 180 250
07
Without mechanical stroke limiter (without code)
l l l l l l l l
Mechanical stroke limiter, externally adjustable
l l l l l l l l
M
Ports X
3
, X
4
for stroking chamber pressure (see page 56) 28 40 56 71 90 125 180 250
08
Without ports X
3
, X
4
(without code)
l l l l l l l l
Ports X
3
, X
4
for stroking chamber pressure
l l l l l l l l
T
DA control valve (see page 17) NV HD HW DG DA EP EZ
09
Without DA control valve
l l l l
–
l l
1
DA control valve fixed setting
–
l l l l l
– 2
DA control valve mechanically
adjustable, with position lever
actuating direction right
–
l l l l l
– 3R
left
–
l l l l l
– 3L
DA control valve fixed setting and braking inch
valve mounted, control with brake fluid
according to ISO 4925,
no mineral oil
– – – –
l
– – 4
based on mineral oil
– – – –
l
– – 8
DA control valve fixed setting, ports for pilot control device
–
l l l l l
– 7
On delivery, the position of the lever may differ from that shown in the brochure or drawing. If necessary, the position of the
1)
lever can be adjusted by the customer.
= Available m = On request – = Not available = Preferred program
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 3/68
Ordering code for standard program
A4V G D / 32 – N
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22
Series
10
Series 3, index 2
32
Directions of rotation
11
Viewed on drive shaft clockwise
R
counter-clockwise
L
Seals
12
NBR (nitrile-caoutchouc), shaft seal in FKM (fluor-caoutchouc)
N
Drive shafts (permissible input torques see page 9) 28 40 56 71 90 125 180 250
13
Splined shaft
DIN 5480
for single pump
l l l l l l l l
Z
for combination pump – 1st pump
–
2)
l l l l l
–
2)
–
2)
A
Splined shaft
ANSI B92.1a
for single pump
l l l l l l l l
S
for combination pump – 1st pump
–
3)
–
3)
l l
–
3)
l l l
T
Only for combination pump – 2nd pump
–
l
– –
l
– – – U
Mounting flanges 28 40 56 71 90 125 180 250
14
SAE J744
2-hole
l l l
– – – – – C
4-hole
– – – – – –
l l
D
2+4-hole
– – –
l l l
– – F
Service line ports 28 40 to 180 250
15
SAE flange ports A and B,
top and bottom
suction port S
bottom
–
l
– 02
top
–
m
– 03
SAE flange ports A and B,
same side
right
suction port S
bottom
l
–
l
10
left
top
m
–
m
13
Boost pump 28 40 56 71 90 125 180 250
16
Without integrated boost pump
without through drive
l l l l l l l l
N00
with through drive
l l l l l l l l
K..
Integrated boost pump
without through drive
l l l l l l l l
F00
with through drive
l l l l l l l l
F..
Through drives (mounting options, see page 53)
17
Flange SAE J744
4)
Coupling for splined shaft
28 40 56 71 90 125 180 250
82-2 (A) 5/8 in 9T 16/32DP
5)
l l l l l l l l
.01
101-2 (B)
7/8 in 13T 16/32DP
5)
l l l l l l l l
.02
1 in 15T 16/32DP
5)
l l l l l l l l
.04
127-2 (C)
1 in 15T 16/32DP
5)
–
l
– – – – – – .09
1 1/4 in 14T 12/24DP
5)
– –
l l l l l l
.07
152-2/4 (D)
W35 2x16x9g
6)
– – – –
l
– – – .73
1 3/4 in 13T 8/16DP
5)
– – – – –
l l l
.69
165-4 (E) 1 3/4 in 13T 8/16DP
5)
– – – – – –
l l
.72
Standard for combination pump – 1st pump: shaft
2) Z
Standard for combination pump – 1st pump: shaft
3) S
2 = 2-hole; 4 = 4-hole
4)
Coupling for splined shaft according to ANSI B92.1a5)
Coupling for splined shaft according to DIN 54806)
= Available m = On request – = Not available = Preferred program
4/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Ordering code for standard program
A4V G D / 32 – N
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22
Valves (see page 54)
Setting range ∆p
28 40 56 71 90 125 180 250
18
High-pressure relief valve, pilot operated
100 to 420 bar with bypass
– – –
l l l l l
1
High-pressure relief valve
direct controlled, fixed setting
250 to 420 bar
w/o bypass
l l l
– – – – – 3
with bypass
l l l
– – – – – 5
100 to 250 bar
w/o bypass
l l l
– – – – – 4
with bypass
l l l
– – – – – 6
Filtration boost circuit / external supply (see pages 57 to 60) 28 40 56 71 90 125 180 250
19
Filtration in the boost pump suction line
l l l l l l l l
S
Filtration in the boost pump pressure line
l l l l l l l l
D
Ports for external boost circuit filtration (F
e
and F
a
)
and cold start valve
–
l l l l l l
– K
Filter mounted with cold start valve
–
l l l l l l
– F
Filter mounted with
cold start valve and
contamination indica-
tor through:
inspection window
–
l l l l l l
– P
electric signal
–
l l l l l l
– B
External supply (on version without integrated boost pump – N00, K...)
l l l l l l l l
E
Swivel angle sensor (see page 61) 28 40 56 71 90 125 180 250
20
Without swivel angle sensor (without code)
l l l l l l l l
Electric swivel angle sensor mounted
7)
l l l l l l l l
R
Connector for solenoids
8)
(see page 62) 28 40 56 71 90 125 180 250
21
DEUTSCH molded
connector, 2-pin
without suppressor diode
l l l l l l l l
P
with suppressor diode (only for EZ and DA)
l l l l l l l l
Q
Standard / special version
22
Standard version
without code
combined with attachment part or attachment pump
-K
Special version
-S
combined with attachment part or attachment pump
-SK
Please contact us if the swivel angle sensor is used for control
7)
Connectors for other electric components can deviate8)
= Available m = On request – = Not available = Preferred program
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 5/68
Technical data
Hydraulic fluid
Before starting project planning, please refer to our data
sheets RE 90220 (mineral oil), RE 90221 (environmentally
acceptable hydraulic fluids) and RE 90222 (HFD hydraulic
fluids) for detailed information regarding the choice of hydraulic
fluid and application conditions.
The variable pump A4VG is not suitable for operation with
HFA, HFB and HFC hydraulic fluids. If HFD or environmentally
acceptable hydraulic fluids are used, the limitations regarding
technical data or other seals must be observed.
Please contact us.
Selection diagram
t
min
= -40°C t
max
= +115°C
-40° -25° -10° 10°30° 50° 90°115°70°
0°
5
10
40
60
20
100
200
400
600
1000
1600
-40° 0° 20° 40° 60°80° 100° -20°
1600
ν
opt
16
36
VG 22
VG 32
VG 46
VG 68
VG 100
5
Hydraulic fluid temperature range
Temperature t in °C
Viscosity ν in mm
2
/s
Details regarding the choice of hydraulic fluid
The correct choice of hydraulic fluid requires knowledge of the
operating temperature in relation to the ambient temperature: in
a closed circuit, the circuit temperature.
The hydraulic fluid should be chosen so that the operating
viscosity in the operating temperature range is within the
optimum range (ν
opt
see shaded area of the selection diagram).
We recommended that the higher viscosity class be selected
in each case.
Example: At an ambient temperature of X °C, an operating tem-
perature of 60 °C is set in the circuit. In the optimum operating
viscosity range (ν
opt
, shaded area), this corresponds to the
viscosity classes VG 46 and VG 68; to be selected: VG 68.
Note
The case drain temperature, which is affected by pressure and
speed, can be higher than the circuit temperature. At no point
of the component may the temperature be higher than 115 °C.
The temperature difference specified below is to be taken into
account when determining the viscosity in the bearing.
If the above conditions cannot be maintained due to extreme
operating parameters, please contact us.
Viscosity and temperature of hydraulic fluid
Viscosity [mm
2
/s] Temperature Comment
Transport and storage
at ambient temperature
T
min
≥ -50 °C
T
opt
= +5 °C to +20 °C
Factory preservation: up to 12 months with standard,
up to 24 months with long-term
(Cold) start-up
1)
ν
max
= 1600 T
St
≥ -40 °C t ≤ 3 min, without load (p ≤ 50 bar), n ≤ 1000 rpm
Permissible temperature difference ∆T ≤ 25 K between axial piston unit and hydraulic fluid
Warm-up phase ν < 1600 to 400 T = -40 °C to -25 °C at p ≤0.7•p
nom
, n ≤0.5•n
nom
and
t ≤ 15 min
Operating phase
Temperature difference
∆T = approx. 5 K
between hydraulic fluid in the bearing and at port T
Maximum temperature
115 °C in the bearing
110 °C measured at port T
Continuous operation ν = 400 to 10
ν
opt
= 36 to 16
T = -25 °C to +90 °C measured at port T,
no restriction within the permissible data
Short-term operation ν
min
≥ 7 T
max
= +110 °C measuredatportT,t<3min,p<0.3•p
nom
FKM shaft seal
1)
T ≤ +115 °C see page 7
At temperatures below -25 °C, an NBR shaft seal is required (permissible temperature range: -40 °C to +90 °C).
1)
6/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Filtration of the hydraulic fluid
Finer filtration improves the cleanliness level of the hydraulic
fluid, which increases the service life of the axial piston unit.
To ensure the functional reliability of the axial piston unit, a gra-
vimetric analysis of the hydraulic fluid is necessary to determine
the amount of solid contaminant and to determine the cleanli-
ness level according to ISO 4406. A cleanliness level of at
least 20/18/15 is to be maintained.
Depending on the system and the application, for the A4VG,
we recommend
Filter cartridges β
20
≥100.
With an increasing differential pressure at the filter cartridges,
the β value must not deteriorate.
At very high hydraulic fluid temperatures (90 °C to maximum
115 °C), a cleanliness level of at least 19/17/14 according to
ISO 4406 is necessary.
If the above classes cannot be achieved, please contact us.
For notes on filtration types, see page 57.
Shaft seal
Permissible pressure loading
The service life of the shaft seal is influenced by the speed of
the axial piston unit and the case drain pressure (case pres-
sure p
G
). The mean differential pressure of 2 bar between the
case and the ambient pressure may not be enduringly exceed-
ed at normal operating temperature. For a higher differential
pressure at reduced speed, see diagram. Momentary pressure
spikes (t < 0.1 s) of up to 10 bar are permitted. The service life
of the shaft seal decreases with an increase in the frequency of
pressure spikes.
The case pressure must be equal to or higher than the ambient
pressure.
1000
0
1
2
3
4
5
2000 3000 4000 5000
NG28
NG40
NG
90
Differential pressure ∆p [bar]
Speed n [rpm]
NG180 NG71, 90 NG28
NG40, 56NG125
NG56
NG71
NG250
These values are valid for an ambient pressure p
abs
= 1 bar.
Temperature range
The FKM shaft seal may be used for case drain temperatures
from -25 °C to +115 °C.
Note
For application cases below -25 °C, an NBR shaft seal
is required (permissible temperature range: -40 °C to
+90 °C). State NBR shaft seal in plain text when ordering.
Please contact us.
Technical data
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 7/68
Technical data
Operating pressure range
(operating with mineral oil)
Pressure at service line port A or B
Nominal pressure p
nom
_________________ 400 bar absolute
Maximum pressure p
max
_______________ 450 bar absolute
Single operating period ____________________________ 10 s
Total operating period at n
nom
_______________________ 300 h
Minimum pressure (high-pressure side) ___25 bar absolute
Minimum pressure (low-pressure side) _____10 bar over p
G
(boost pressure setting must be higher, depending on system)
Rate of pressure change R
A max
______________ 9000 bar/s
p
nom
∆t
∆p
Time t
Pressure p
Boost pump
Pressure at suction port S
Continuous p
S min
(ν ≤ 30 mm
2
/s) _________≥ 0.8 bar absolute
Short-term, on cold start (t < 3 min) _______≥ 0.5 bar absolute
Maximum p
S max
_________________________ ≤5 bar absolute
Nominal pressure p
Sp nom
________________25 bar absolute
Maximum pressure p
Sp max
_______________40 bar absolute
Control pressure
To ensure the function of the control, the following control
pressure is required depending on the speed and operating
pressure (measuring point, port P
S
):
For controls EP, HW and HD
Minimum control pressure
p
St min
(at n = 2000 rpm)
__________________ 20 bar over p
G
For control DA, DG, EZ
Minimum control pressure
p
St min
(at n = 2000 rpm
) __________________ 25 bar over p
G
Note
Values for other hydraulic fluids, please contact us.
p
G
= case pressure
Definition
Nominal pressure p
nom
The nominal pressure corresponds to the maximum design
pressure.
Maximum pressure p
max
The maximum pressure corresponds to the maximum operat-
ing pressure within the single operating period. The sum of the
single operating periods must not exceed the total operating
period.
Minimum pressure (high-pressure side)
Minimum pressure at the high-pressure side (A or B) which is
required in order to prevent damage to the axial piston unit.
Minimum pressure (low-pressure side)
Minimum pressure at the low-pressure side (A or B) which is
required in order to prevent damage to the axial piston unit.
Rate of pressure change R
A
Maximum permissible rate of pressure rise and reduction dur-
ing a pressure change over the entire pressure range.
Pressure p
t
1
t
2
t
n
Single operating period
Minimum pressure (high-pressure side)
Maximum pressure p
max
Nominal pressure p
nom
Time t
Total operating period = t
1 +
t
2 + ... +
t
n
8/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Technical data
Table of values (theoretical values, without efficiency and tolerances; values rounded)
Size NG 28 40 56 71 90 125 180 250
Displacement geometric, per revolution
variable pump V
g max
cm
3
28 40 56 71 90 125 180 250
boost pump (at p = 20 bar) V
g Sp
cm
3
6 .1 8.6 11. 6 19.6 19.6 28.3 39.8 52.5
Speed
1)
maximum at V
g max
n
nom
rpm
4250 4000 3600 3300 3050 2850 2500 2400
limited maximum
2)
n
max
rpm
4500 4200 3900 3600 3300 3250 2900 2600
intermittent maximum
3)
n
max
rpm
5000 5000 4500 4100 3800 3450 3000 2700
minimum n
min
rpm
500 500 500 500 500 500 500 500
Flow
at n
nom
and V
g max
q
v
L/min
119 160 202 234 275 356 450 600
Power
4)
at n
nom
, V
g max
and ∆p = 400 bar P kW 79 107 134 156 183 238 300 400
Torque
4)
at V
g max
and ∆p = 400 bar T Nm 17 8 255 357 452 573 796 1146 1592
∆p = 100 bar T Nm 45 64 89 113 143 199 286 398
Rotary stiffness drive shaft
S c kNm/rad 31.4 69 80.8 98.8 158.1 218.3 244.5 354.5
T c kNm/rad – – 95 120.9 – 252.1 318.4 534.3
A c kNm/rad – 79.6 95.8 142.4 176.8 256.5 – –
Z c kNm/rad 32.8 67.5 78.8 122.8 137 223.7 319.6 624.2
U c kNm/rad – 50.8 – – 107.6 – – –
Moment of inertia for rotary group J
GR
kgm
2
0.0022 0.0038 0.0066 0.0097 0.0149 0.0232 0.0444 0.0983
Maximum angular acceleration
5)
a
rad/s
2
38000 30000 24000 21000 18000 14000 11000 6700
Case volume V L 0.9 1.1 1.5 1.3 1.5 2.1 3.1 6.3
Mass approx. (without through drive) m kg 29 31 38 50 60 80 101 156
Center of gravity
6)
X mm < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5
Y mm 24 20 20 15 20 30 33 30
Z mm 105 112 106 135 145 160 180 203
The values are valid:
1)
- for the optimum viscosity range from ν
opt
= 36 to 16 mm²/s
- with hydraulic fluid based on mineral oils
Limited maximum speed:
2)
- at half of corner power (e. g. at V
g max
and p
N
/2)
Intermittent maximum speed:
3)
- at high idle speed
- at overspeed: ∆p = 70 to 150 bar and V
g max
- at reversing peaks: ∆p < 300 bar and t < 0.1 s.
Without boost pump
4)
The data are valid for values between the minimum required and maximum permissible speed. 5)
Valid for external excitation (e. g. engine 2 to 8 times rotary frequency; cardan shaft twice the rotary frequency).
The limit value applies for a single pump only.
The load capacity of the connection parts must be considered.
Center of gravity
6)
A
X
Z
Y
View A
Note:
Operation above the maximum values or below the minimum values may result in a loss of function, a reduced service life or in
the destruction of the axial piston unit. We recommend testing the loads by means of experiment or calculation / simulation and
comparison with the permissible values.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 9/68
Technical data
Permissible radial and axial forces of the drive shafts
Splined shaft DIN 5480
Size NG 28 40 40 56 56 71 71 90
Drive shaft
W25 W30 W35 W30 W35 W35 W40 W35
Maximum
radial force at
distance a
(from shaft collar)
a
F
q
F
q max
N
3030 3608 3092 5051 4329 5489 4803 6957
a mm 17.5 17.5 20 17.5 20 20 22.5 20
Maximum axial
force
–
+
F
ax
– F
ax max
N 1557 2120 2120 2910 2910 4242 4242 4330
+ F
ax max
N 417 880 880 1490 1490 2758 2758 2670
Size NG 90 125 125 180 250
Drive shaft
W45 W40 W45 W50 W55
Maximum
radial force at
distance a
(from shaft collar)
a
F
q
F
q max
N
5411 8455 7516 9740 12298
a mm 25 22.5 25 27.5 29
Maximum axial
force
–
+
F
ax
– F
ax max
N 4330 6053 6053 7500 4150
+ F
ax max
N 2670 3547 3547 4500 4150
Splined shaft ANSI B92.1a
Size NG 28 40 40 56 56 71 71 90
Drive shaft in
1 1 1 1/4 1 1/4 1 3/8 1 1/4 1 3/8 1 1/4
Maximum
radial force at
distance a
(from shaft collar)
a
F
q
F
q max
N
2983 4261 3409 4772 4338 6050 5500 7670
a mm 19 19 24 24 24 24 24 24
Maximum axial
force
–
+
F
ax
– F
ax max
N 1557 2120 2120 2910 2910 4242 4242 4330
+ F
ax max
N 417 880 880 1490 1490 2758 2758 2670
Size NG 90 125 125 180 180 250 250
Drive shaft in
1 3/4 1 3/4 2 1 3/4 2 1/4 1 3/4 2 1/4
Maximum
radial force at
distance a
(from shaft collar)
a
F
q
F
q max
N
5478 7609 6658 10956 8522 15217 118 36
a mm 33.5 33.5 40 33.5 40 33.5 40
Maximum axial
force
–
+
F
ax
– F
ax max
N 4330 6053 6053 7500 7500 4150 4150
+ F
ax max
N 2670 3547 3547 4500 4500 4150 4150
Note
Special requirements apply in the case of belt drive and cardan shaft. Please contact us.
10/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Permissible input and through-drive torques
Size NG 28 40 56 71 90 125 180 250
Torque at V
g max
and ∆p = 400 bar
1)
T Nm 17 8 255 357 452 573 796 1146 1592
Input torque at drive shaft, maximum
2)
DIN 5480 Z T
E max
Nm 352 522 522 912 912 1460 3140 4350
W25 W30 W30 W35 W35 W40 W50 W55
A T
E max
Nm – 912 912 1460 2190 219 0 – –
W35 W35 W40 W45 W45
ANSI B92.1a (SAE J744) S T
E max
Nm 314 602 602 602 1640 1640 1640 1640
1 in 1 1/4 in 1 1/4 in 1 1/4 in
1 3/4 in 1 3/4 in 1 3/4 in 1 3/4 in
T T
E max
Nm – – 970 970 – 2670 4070 4070
1 3/8 in 1 3/8 in
2 in 2 1/4 in 2 1/4 in
U
3)
T
E max
Nm – 314 – – 602 – – –
1 in 1 1/4 in
Maximum through-drive torque
4)
T
D max
Nm 231 314 521 660 822 1110 17 6 0 2230
Efficiency not considered
1)
For drive shafts without radial force2)
Shaft "U" is only permissible as a drive shaft for the 3) 2nd pump in a combination pump of the same size.
Note maximum input torque at
4) shaft S!
Torque distribution
2. Pumpe
1. Pumpe
T
E
T
D
T
1
T
2
T
3
1st pump 2nd pump
T
E
and T
D
consists as follows:
T
E
= T
1
+ T
2
+ T
3
T
D
= T
2
+ T
3
T
E
< T
E max
T
D
< T
D max
Determining the operating characteristics
Technical data
Flow q
v
=
V
g
•n•η
v
[L/min]
1000
Torque T =
V
g
• ∆p
[Nm]
20•π • η
mh
Power P =
2 π•T•n
=
q
v
• ∆p
[kW]
60000 600 • η
t
V
g
= Displacement per revolution in cm
3
∆p = Differential pressure in bar
n = Speed in rpm
η
v
= Volumetric efficiency
η
mh
= Mechanical-hydraulic efficiency
η
t
= Total efficiency (η
t
= η
v
•η
mh
)
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 11/68
With the direct hydraulic control (DG), the output flow of the
pump is controlled by a hydraulic control pressure, applied
directly to the stroking piston through either port X
1
or X
2
.
Flow direction is determined by which control pressure port is
pressurized (refer to table below).
Pump displacement is infinitely variable and proportional to the
applied control pressure, but is also influenced by system pres-
sure and pump drive speed.
The pressure cut-off and the DA control valve only become
effective if the pilot control device used for controlling the
DG control is supplied from port P
S
.
Maximum permissible control pressure: 40 bar
Use of the DG control requires a review of the engine and ve-
hicle parameters to ensure that the pump is set up correctly. We
recommend that all DG applications be reviewed by a Bosch
Rexroth application engineer.
If the pump is also equipped with a DA control valve (see
page 17), automotive operation is possible for travel drives.
DG – Hydraulic control, direct controlled
Standard version
1)
Version with DA control valve
1)
Sizes 28 and 250 without ports F1)
a1
and F
S
Correlation
Direction of rotation – Control – Flow direction
Size
Control
pressure
Flow
direction
Operating
pressure
Direction of rotation
cw
28
to
56
X
1
A to B M
B
X
2
B to A M
A
71
to
250
X
1
B to A M
A
X
2
A to B M
B
ccw
28
to
56
X
1
B to A M
A
X
2
A to B M
B
71
to
250
X
1
A to B M
B
X
2
B to A M
A
NV – Version without control module
The mounting surface for the control module is machined and is
sealed with the standard seal for control modules and a cover
plate. This version is ready for retrofitting to control modules
(HD, HW, EP, EZ). When used directly for "DA" control and in
combinations with "DA" control, the appropriate adjustments
must be made to the spring assembly of the control cylinder
and control plate.
Standard version
1)
R P
S
F
a
F
a1
F
e
F
S
M
B
B
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
Sizes 28 and 250 without ports F1)
a1
and F
S
12/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
HD – Proportional control hydraulic, pilot-pressure related
The output flow of the pump is infinitely variable between
0 to 100 %, proportional to the difference in pilot pressure ap-
plied to the two control ports (Y
1
and Y
2
).
The pilot signal, coming from an external source, is a pressure
signal. Flow is negligible, as the pilot signal acts only on the
spool of the control valve.
This valve spool then directs control oil into and out of the
stroking cylinder to adjust pump displacement as required.
A feedback lever, connected to the stroking piston maintains
the pump flow for any given pilot signal within the control
range.
If the pump is also equipped with a DA control valve (see
page 17), automotive operation is possible for travel drives.
0 0.2 0.4 0.6 0.8 1.00.20.40.60.81.0
18
16
14
12
10
8
6
4
2
0
2
4
6
8
10
12
14
16
18
V
g
V
g max
V
g
V
g max
p
St
[bar]
p
St
[bar]
V
g
= Displacement at p
St
V
g max
= Displacement at p
St
= 18 bar
Pilot signal p
St
= 6 to 18 bar (at port Y
1
, Y
2
)
Beginning of control at 6 bar
End of control at 18 bar (
maximum displacement V
g max
)
Note:
In the neutral position, the HD control module must be vented
to reservoir via the external pilot control device.
Note
The spring return feature in the control module is not a
safety device
The control module can stick in an undefined position by
internal contamination (contaminated hydraulic fluid, abra-
sion or residual contamination from system components). As
a result, the control will no longer respond correctly to the
operator's commands.
Check whether the application on your machine requires ad-
ditional safety measures, in order to bring the driven actuator
into a controlled and safe position (immediate stop). If neces-
sary, make sure these are properly implemented.
Correlation
Direction of rotation – Control – Flow direction
Size
Pilot
signal
Control
pressure
Flow
direction
Operating
pressure
Direction of rotation
cw
28
to
56
Y
1
X
1
A to B M
B
Y
2
X
2
B to A M
A
71
to
250
Y
1
X
1
B to A M
A
Y
2
X
2
A to B M
B
ccw
28
to
56
Y
1
X
1
B to A M
A
Y
2
X
2
A to B M
B
71
to
250
Y
1
X
1
A to B M
B
Y
2
X
2
B to A M
A
Sizes 28, 250 Sizes 40 to 180
B
A
M
A
X
2
X
1
M
B
M
B
M
A
B
Y
1
Y
2
M
A
Z
X
2
X
1
M
B
M
B
B
A
left
right
View Z
(NG250)
(NG250)
(NG28)
(NG28)
(NG250)
left
right
Standard version
1)
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R P
S
F
a
F
a1
F
e
F
S
M
B
B
Y
1
Y
2
Version with DA control valve
1)
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R P
S
F
a
F
a1
F
e
F
S
M
B
B
Y
1
Y
2
Sizes 28 and 250 without ports F1)
a1
and F
S
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 13/68
HW – Proportional control hydraulic, mechanical servo
The output flow of the pump is infinitely variable between
0 to 100 %, proportional to the swivel angle of the control
lever between 0° and ±29° from the spring centered zero flow
position.
A feedback lever, connected to the stroking piston maintains
the pump flow for any given position of the control lever
between 0° and 29°.
If the pump is also equipped with a DA control valve (see
page 17), automotive operation is possible for travel drives.
β [°]
0 0.2 0.4 0.6 0.8 1.00.20.40.60.81.0
40
35
30
25
20
15
10
5
0
5
10
15
20
25
30
35
40
V
g
V
g max
V
g
V
g max
β [°]
Swivel angle β at the control lever for pump displacement
change:
Beginning of control at β= 3°
End of control at β= 29° (maximum displacement V
g max
)
Mechanical stop for β:
Size 28 to 71 _____________________________________±40°
Size 90 to 250 ___________________________________±35°
The maximum required torque at the lever is 170 Ncm. To prevent
damage to the HW control module, a positive mechanical stop
must be provided for the HW control lever.
Note:
Spring centering enables the pump, depending on pres-
sure and speed, to move automatically to the neutral position
(V
g
= 0) as soon as there is no longer any torque on the con-
trol lever of the HW control module (regardless of deflection
angle).
Variation: neutral position switch
The switch contact in the neutral position switch is closed
when the control lever on the HW control module is in its neu-
tral position. The switch opens when the control lever is moved
out of neutral in either direction.
Thus, the neutral position switch provides a monitoring function
for drive units that require the pump to be in the neutral posi-
tion during certain operating conditions (e. g. starting diesel
engines).
Technical data, neutral position switch
Load capacity
20 A (continuous), w/o switching operating
Switching capacity
15 A / 32 V (resistive load)
4 A / 32 V (inductive load)
Connector design
DEUTSCH DT04-2P-EP04
(mating connector, see page 62)
Correlation
Direction of rotation – Control – Flow direction
Size Lever
direction
Control
pressure
Flow
direction
Operating
pressure
Direction of rotation
cw
28 to 56
a X
2
B to A M
A
b X
1
A to B M
B
71 to 250
a X
2
A to B M
B
b X
1
B to A M
A
ccw
28 to 56
a X
2
A to B M
B
b X
1
B to A M
A
71 to 250
a X
2
B to A M
A
b X
1
A to B M
B
Sizes 28, 250 Sizes 40 to 180
B
A
M
A
X
2
b
a
b
a
X
1
M
B
Z
X
2
X
1
B
A
M
B
M
A
M
A
M
B
M
B
left
right
Neutral position switch
View Z
(NG250)
(NG250)
(NG28)
(NG28)
(NG250)
Neutral position switch
left
right
Standard version
1)
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R F
a
F
a1
F
e
F
S
M
B
BP
S
a b
Version with DA control valve and neutral position switch
1)
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R F
a
F
a1
F
e
F
S
M
B
BP
S
a b
Sizes 28 and 250 without ports F1)
a1
and F
S
14/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
EP – Proportional control electric
The output flow of the pump is infinitely variable between
0 to 100 %, proportional to the electrical current supplied to
solenoid a or b.
The electrical energy is converted into a force acting on the
spool of the control valve.
This valve spool then directs control oil into and out of the
stroking cylinder to adjust pump displacement as required.
A feedback lever, connected to the stroking piston maintains
the pump flow for any given current within the control range.
If the pump is also equipped with a DA control valve (see
page 17), automotive operation is possible for travel drives.
I [mA]
EP3
EP4
EP3
EP4
I [mA]
0.2 0.4 0.6 0.8 1.00.40.60.81.0
1200
1000
800
600
400
200
0
00.2
V
g
V
g max
V
g
V
g max
200
400
600
800
1000
1200
(solenoid b)
(solenoid a)
Technical data, solenoid
EP3 EP4
Voltage
12 V (±20 %) 24 V (±20 %)
Control current
Beginning of control at V
g
= 0
400 mA 200 mA
End of control at V
g max
1200 mA 600 mA
Limiting current 1.54 A 0.77 A
Nominal resistance (at 20 °C) 5.5 Ω 22.7 Ω
Dither frequency 100 Hz 100 Hz
Duty cycle 100 % 100 %
Type of protection see connector design page 62
The following electronic controllers and amplifiers are available
for controlling the proportional solenoids:
BODAS controller RC –
Series 20 ______________________________ RE 95200
Series 21 ______________________________ RE 95201
Series 22 ______________________________ RE 95202
Series 30 ____________________ RE 95203, RE 95204
and application software
Analog amplifier RA – ______________________ RE 95230
Further information can also be found on the Internet at
www.boschrexroth.com/mobile-electronics.
Note
The spring return feature in the control module is not a
safety device
The control module can stick in an undefined position by inter-
nal contamination (contaminated hydraulic fluid, abrasion or
residual contamination from system components). As a result,
the control will no longer respond correctly to the operator's
commands.
Check whether the application on your machine requires ad-
ditional safety measures, in order to bring the driven actuator
into a controlled and safe position (immediate stop). If neces-
sary, make sure these are properly implemented.
Correlation
Direction of rotation – Control – Flow direction
Size Actuation
of solenoid
Control
pressure
Flow
direction
Operating
pressure
Direction of rotation
cw
28 to 56
a X
1
A to B M
B
b X
2
B to A M
A
71 to 250
a X
1
B to A M
A
b X
2
A to B M
B
ccw
28 to 56
a X
1
B to A M
A
b X
2
A to B M
B
71 to 250
a X
1
A to B M
B
b X
2
B to A M
A
Sizes 28, 250 Sizes 40 to 180
B
A
M
A
X
2
X
1
X
2
X
1
M
B
B
B
A
Z
M
B
M
A
M
A
M
B
M
B
left
right
Solenoid b
Solenoid a
View Z
(NG250)
(NG250) (NG28)
(NG 28)
(NG250)
Solenoid a
Solenoid b
left
right
Standard
Proportional solenoid without manual override.
On request
Proportional solenoid with manual override and spring return.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 15/68
Standard version
1)
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R F
a
F
a1
F
e
F
S
M
B
BP
S
a
b
EP – Proportional control electric
By energizing either switching solenoid a or b, internal control
pressure is connected directly to the stroking piston and the
pump swivels to maximum displacement. With the EZ control,
pump flow is switchable between V
g
= 0 and V
g max
.
Flow direction is determined by which solenoid is energized.
Technical data, solenoid
EZ1 EZ2
Voltage 12 V (±20 %) 24 V (±20 %)
Neutral position V
g
= 0
de-energized de-energized
Displacement V
g max
Energized Energized
Nominal resistance (at 20 °C) 5.5 Ω 21.7 Ω
Nominal power 26.2 W 26.5 W
Minimum required current
1.32 A 0.67 A
Duty cycle 100 % 100 %
Type of protection see connector design page 62
Standard
Switching solenoid without manual override.
On request
Switching solenoid with manual override and spring return.
EZ – Two-point control electric
Correlation
Direction of rotation – Control – Flow direction
Size Actuation
of solenoid
Control
pressure
Flow
direction
Operating
pressure
Direction of rotation
cw
28 to 56
a X
2
B to A M
A
b X
1
A to B M
B
71 to 250
a X
2
A to B M
B
b X
1
B to A M
A
ccw
28 to 56
a X
2
A to B M
B
b X
1
B to A M
A
71 to 250
a X
2
B to A M
A
b X
1
A to B M
B
Standard version
1)
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R P
S
F
a
F
a1
F
e
F
S
M
B
B
ba
Sizes 28 and 250 without ports F1)
a1
and F
S
Version with DA control valve
1)
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R F
a
F
a1
F
e
F
S
M
B
BP
S
a
b
Sizes 28 and 250 without ports F1)
a1
and F
S
16/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
The DA closed loop control is an engine speed-dependent
system for travel drives. The built-in DA control valve generates
a control pressure which is proportional to pump (engine) drive
speed. This control pressure is directed to the stroking cylinder
of the pump by a solenoid actuated 4/3-way directional valve.
The pump displacement is infinitely variable in each flow direc-
tion and is influenced by both pump drive speed and system
pressure. The flow direction (e. g. machine moving forward
or backward) is determined by either solenoid a or b being
activated.
Increasing pump drive speed generates a higher control pres-
sure from the DA control valve, with a subsequent increase in
pump flow.
Depending on the selected pump operating characteristics,
increasing system pressure (e. g. machine load) causes the
pump to swivel back towards a smaller displacement. Engine
overload protection (anti-stall) is achieved by the combination
of this pressure-related pump de-stroking, and the reduction of
control pressure as the engine speed drops.
Any additional power requirement, e. g. for hydraulic functions
from attachments, could cause the engine speed to drop
further. This would cause a further reduction in control pressure
and thus of pump displacement. Automatic power distribution
and full exploitation of the available power are achieved in this
way, both for the travel drive and for the implement hydraulics,
with priority given to the implement hydraulics.
Various override options are available for the DA control func-
tion to allow controlled operation of the implement hydraulics
with high rpm at reduced vehicle speed.
The DA control valve can also be used in pumps with EP, DG,
HW and HD control modules to protect the combustion engine
against overload.
DA closed loop control is only suitable for certain types of drive
systems and requires review of the engine and vehicle param-
eters to ensure that the pump is used correctly and that machine
operation is safe and efficient. We recommend that all DA appli-
cations be reviewed by a Bosch Rexroth application engineer.
Technical data, solenoid
DA1 DA2
Voltage 12 V (±20 %) 24 V (±20 %)
Neutral position V
g
= 0 de-energized de-energized
Displacement V
g max
Energized Energized
Nominal resistance (at 20 °C) 5.5 Ω 21.7 Ω
Nominal power 26.2 W 26.5 W
Minimum required current
1.32 A 0.67 A
Duty cycle 100 % 100 %
Type of protection see connector design page 62
Standard
Switching solenoid without manual override.
On request
Switching solenoid with manual override and spring return.
DA – Automatic control speed-related
Correlation
Direction of rotation – Control – Flow direction
Size
Actuation
of solenoid
Control
pressure
Flow
direction
Operating
pressure
Direction of rotation
cw
28
to
56
a X
2
B to A M
A
b X
1
A to B M
B
71 to 250
a X
2
A to B M
B
b X
1
B to A M
A
ccw
28
to
56
a X
2
A to B M
B
b X
1
B to A M
A
71 to 250
a X
2
B to A M
A
b X
1
A to B M
B
Sizes 28, 250 Sizes 40 to 180
B
A
Z
B
B
A
M
B
M
A
M
A
M
B
M
B
X
2
X
1
X
2
X
1
M
B
M
A
left
right
Solenoid b
Solenoid a
View Z
(NG250)
(NG250) (NG28)
(NG28)
(NG250)
Solenoid a
Solenoid b
left
right
DA control valve fixed setting, DA1D2/DA2D2
1)
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R F
a
F
a1
F
e
F
S
M
B
BP
S
a b
Sizes 28 and 250 without ports F1)
a1
and F
S
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 17/68
Function and control of DA control valves
DA control valve fixed setting (2)
Control pressure is generated in relation to drive speed. When
ordering, state in plain text: start of control (set at factory).
DA control valve mechanically adjustable with position
lever (3)
Control pressure is generated in relation to drive speed. When
ordering, state in plain text: start of control (set at factory).
Any reduction of the control pressure possible, independently
of the drive speed, through mechanical actuation of the posi-
tion lever (inch function).
The maximum permissible actuation torque at the position lever
is T
max
= 4 Nm.
Maximum angle of rotation 70°, lever position: any.
Version 3R
Actuating direction of the position lever: right
Version 3L
Actuating direction of the position lever: left
DA control valve fixed setting and braking inch valve
mounted (4, 8)
(only for pumps with DA control module)
Version with throttle valve size 28, 40, 56, 71 –
Version with pressure reducing valve size 90, 125, 180, 250 –
Any reduction of the control pressure possible, independently
of the drive speed via hydraulic control (port Z).
Version 4:
Control at port Z by means of brake fluid according to ISO
4925 (no mineral oil), from the vehicle braking system (hydrau-
lically linked with the service brake).
Version 8:
Control at port Z by means of brake fluid based on mineral oil.
DA control valve fixed setting, ports for pilot control device
as inch valve (7)
Any reduction of the pilot pressure possible, independently of the
drive speed is achieved by the mechanical actuation of the pilot
control device.
The pilot control device is installed separately from the pump (for
example in the driver’s cabin) and connected to the pump by two
hydraulic control lines via ports P
S
and Y.
A suitable pilot control device must be ordered separately and is
not included in the delivery contents.
Detailed information is available from our sales department and
on the Internet at www.boschrexroth.com/da-control. Use our
computer program to work out the input design that meets your
needs.
All DA applications must be approved by a Bosch Rexroth
application engineer.
Note: Rotary inch valves, see page 63.
Schematics
1)
:
DA1D3/DA2D3
DA control valve mechanically adjustable with position lever
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R F
a
F
a1
F
e
F
S
M
B
BP
S
a b
DA1D4/DA2D4
DA control valve fixed setting, with hydraulic inch valve
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R F
a
F
a1
F
e
F
S
M
B
BP
S
a b
Z
With throttle valve,
size 28 to 71
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R F
a
F
a1
F
e
F
S
M
B
BP
S
a b
Z
With pressure reducing valve,
size 90 to 250
DA1D7/DA2D7
DA control valve fixed setting, with separately attached pilot
control device as inch valve
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R F
a
F
a1
F
e
F
S
M
B
BP
S
a b
Y
Pilot control device
(not part of delivery contents)
Size 28 and 250 without port F1)
a1
and F
S
DA – Automatic control speed-related
18/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 28
NV – Version without control module
Standard: Suction port S at bottom (10)
Option: Suction port S at top (13): port plate turned through 180°
Detail W
Boost pressure
valve
HD valve:
without bypass
with bypass
HD valve:
with bypass
Pressure cut-off
Flange SAE J744
101-2 (B)
Port plate
without bypass
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
Mechanical neutral-position
adjustment
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 19/68
Drive shafts
Z
Splined shaft DIN 5480
W25x1.25x18x9g
S
Splined shaft 1 in
15T 16/32DP
1)
Ports
Designation Port for Standard Size
3)
Maximum
pressure [bar]
5)
State
11)
A, B Service line
Fastening thread A/B
SAE J518
6)
DIN 13
3/4 in
M10 x 1.5; 17 deep
450 O
S Suction line DIN 3852
9)
M33 x 2; 18 deep 5 O
7)
T
1
Drain line DIN 3852
9)
M22 x 1.5; 14 deep 3 O
8)
T
2
Drain line DIN 3852
9)
M22 x 1.5; 14 deep 3 X
8)
R Air bleed DIN 3852
9)
M12 x 1.5; 12 deep 3 X
X
1
, X
2
Control pressure (upstream of orifice) DIN 3852
9)
M12 x 1.5; 12 deep 40 X
X
1
, X
2
Control pressure
(upstream of orifice, DG only)
DIN 3852
9)
M12 x 1.5; 12 deep 40 O
X
3,
X
4
10)
Stroking chamber pressure DIN 3852
9)
M12 x 1.5; 12 deep 40 X
G Boost pressure DIN 3852
9)
M12 x 1.5; 12 deep 40 X
P
S
Pilot pressure DIN 3852
9)
M14 x 1.5; 12 deep 40 X
P
S
Pilot pressure (DA7 only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
Y Pilot pressure (DA7 only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
M
A
, M
B
Measuring pressure A, B DIN 3852
9)
M12 x 1.5; 12 deep 450 X
M
H
Measuring high pressure DIN 3852
9)
M12 x 1.5; 12 deep 450 X
F
a
Boost pressure inlet DIN 3852
9)
M18 x 1.5; 12 deep 40 X
F
e
Boost pressure outlet DIN 3852
9)
M18 x 1.5; 12 deep 40 X
Y
1
, Y
2
Pilot signal (HD only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
Z Inch signal (DA4 and 8 only) DIN 3852
9)
M10 x 1; 8 deep 40 X
ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
1)
Center bore according to DIN 332 (thread according to DIN 13)2)
Observe the general instructions on page 68 for the maximum tightening torques.3)
Thread according to ASME B1.14)
Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.5)
Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.6)
Plugged with external supply.7)
Depending on installation position, T8)
1
or T
2
must be connected (see also installation instructions on pages 65 and 66).
The spot face can be deeper than specified in the appropriate standard.
9)
Optional, see page 5610)
O = Must be connected (plugged on delivery) 11)
X = Plugged (in normal operation)
Dimensions size 28
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
2)3)
3)4)
20/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 28
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
HD
Proportional control hydraulic, pilot-pressure related
HW
Proportional control hydraulic, mechanical servo
b
a
40°
40°
20
27
50
ø8
63
9
142
8
113.4
147
Version with
neutral position
switch, HWL
EP
Proportional control electric
EZ
Two-point control electric
DG
Hydraulic control, direct controlled
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 21/68
Dimensions size 28
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
DA — control valve
Version 2 – fixed setting Version 3 – mechanically adjustable with position lever
Detail W
Detail W
Actuating direction:
"left" (3L)
Actuating direction:
"right" (3R)
Version 4/8 – fixed setting and inch valve mounted Version 7 – fixed setting and ports for pilot control device
Detail W
Detail W
22/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
NV – Version without control module
Standard: Suction port S at bottom (02)
Option: Suction port S at top (03): port plate turned through 180°
Detail W
HD valve:
without bypass
with bypass
Mechanical
neutral-posi-
tion adjust-
ment
HD valve:
with bypass
Pressure cut-off
Boost pressure valve
Flange SAE J744
127-2 (C)
M8 x 1.25;
11 deep, DIN 13
Port plate
without bypass
Dimensions size 40
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 23/68
Drive shafts
Z
Splined shaft DIN 5480
W30x2x14x9g
A
Splined shaft DIN 5480
W35x2x16x9g
S
Splined shaft 1 1/4 in
14T 12/24DP
1)
U
Splined shaft 1 in
15T 16/32DP
1)
Ports
Designation Port for Standard Size
3)
Maximum
pressure [bar]
5)
State
11)
A, B Service line
Fastening thread A/B
SAE J518
6)
DIN 13
3/4 in
M10 x 1.5; 17 deep
450 O
S Suction line DIN 3852
9)
M33 x 2; 18 deep 5 O
7)
T
1
Drain line DIN 3852
9)
M22 x 1.5; 14 deep 3 O
8)
T
2
Drain line DIN 3852
9)
M22 x 1.5; 14 deep 3 X
8)
R Air bleed DIN 3852
9)
M12 x 1.5; 12 deep 3 X
X
1
, X
2
Control pressure (upstream of orifice) DIN 3852
9)
M12 x 1.5; 12 deep 40 X
X
1
, X
2
Control pressure
(upstream of orifice, DG only)
DIN 3852
9)
M12 x 1.5; 12 deep 40 O
X
3,
X
4
10)
Stroking chamber pressure DIN 3852
9)
M12 x 1.5; 12 deep 40 X
G Boost pressure DIN 3852
9)
M12 x 1.5; 12 deep 40 X
P
S
Pilot pressure DIN 3852
9)
M14 x 1.5; 12 deep 40 X
P
S
Pilot pressure (DA7 only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
Y Pilot pressure (DA7 only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
M
A
, M
B
Measuring pressure A, B DIN 3852
9)
M12 x 1.5; 12 deep 450 X
M
H
Measuring high pressure DIN 3852
9)
M12 x 1.5; 12 deep 450 X
F
a
Boost pressure inlet DIN 3852
9)
M18 x 1.5; 12 deep 40 X
F
a1
Boost pressure, inlet (mountable filter) DIN 3852
9)
M18 x 1.5; 12 deep 40 X
F
e
Boost pressure outlet DIN 3852
9)
M18 x 1.5; 12 deep 40 X
F
S
Line from filter to suction line
(cold start)
DIN 3852
9)
M18 x 1.5; 12 deep 40 X
Y
1
, Y
2
Pilot signal (HD only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
Z Inch signal (DA4 and 8 only) DIN 3852
9)
M10 x 1; 8 deep 40 X
ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
1)
Center bore according to DIN 332 (thread according to DIN 13)2)
Observe the general instructions on page 68 for the maximum tightening torques.3)
Thread according to ASME B1.14)
Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.5)
Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.6)
Plugged with external supply.7)
Depending on installation position, T8)
1
or T
2
must be connected (see also installation instructions on pages 65 and 66).
The spot face can be deeper than specified in the appropriate standard.
9)
Optional, see page 5610)
O = Must be connected (plugged on delivery) 11)
X = Plugged (in normal operation)
Dimensions size 40
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
2)3)
3)4)
2)3)
3)4)
24/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 40
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
HD
Proportional control hydraulic, pilot-pressure related
HW
Proportional control hydraulic, mechanical servo
111. 4
9
63
ø8
50
27
8
40°
40°
20
142
b
a
147
Version with
neutral position
switch, HWL
EP
Proportional control electric
EZ
Two-point control electric
DG
Hydraulic control, direct controlled
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 25/68
Dimensions size 40
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
DA — control valve
Version 2 – fixed setting Version 3 – mechanically adjustable with position lever
Actuating direction:
"left" (3L)
Actuating direction:
"right" (3R)
Version 4/8 – fixed setting and inch valve mounted Version 7 – fixed setting and ports for pilot control device
26/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 56
NV – Version without control module
Standard: Suction port S at bottom (02)
Option: Suction port S at top (03): port plate turned through 180°
Detail W
Boost pressure valve
HD valve:
without bypass
with bypass
Mechanical
neutral-posi-
tion adjust-
ment
HD valve:
with bypass
without bypass
Pressure cut-off
Flange SAE J744
127-2 (C)
M8 x 1.25;
11 deep, DIN 13
Port plate
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 27/68
Dimensions size 56
Drive shafts
Z
Splined shaft DIN 5480
W30x2x14x9g
A
Splined shaft DIN 5480
W35x2x16x9g
S
Splined shaft 1 1/4 in
14T 12/24DP
1)
T
Splined shaft 1 3/8 in
21T 16/32DP
1)
Ports
Designation Port for Standard Size
3)
Maximum
pressure [bar]
5)
State
11)
A, B Service line
Fastening thread A/B
SAE J518
6)
DIN 13
3/4 in
M10 x 1.5; 17 deep
450 O
S Suction line DIN 3852
9)
M33 x 2; 18 deep 5 O
7)
T
1
Drain line DIN 3852
9)
M22 x 1.5; 14 deep 3 O
8)
T
2
Drain line DIN 3852
9)
M22 x 1.5; 14 deep 3 X
8)
R Air bleed DIN 3852
9)
M12 x 1.5; 12 deep 3 X
X
1
, X
2
Control pressure (upstream of orifice) DIN 3852
9)
M12 x 1.5; 12 deep 40 X
X
1
, X
2
Control pressure
(upstream of orifice, DG only)
DIN 3852
9)
M12 x 1.5; 12 deep 40 O
X
3,
X
4
10)
Stroking chamber pressure DIN 3852
9)
M12 x 1.5; 12 deep 40 X
G Boost pressure DIN 3852
9)
M14 x 1.5; 12 deep 40 X
P
S
Pilot pressure DIN 3852
9)
M14 x 1.5; 12 deep 40 X
P
S
Pilot pressure (DA7 only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
Y Pilot pressure (DA7 only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
M
A
, M
B
Measuring pressure A, B DIN 3852
9)
M12 x 1.5; 12 deep 450 X
M
H
Measuring high pressure DIN 3852
9)
M12 x 1.5; 12 deep 450 X
F
a
Boost pressure inlet DIN 3852
9)
M18 x 1.5; 12 deep 40 X
F
a1
Boost pressure, inlet (mountable filter) DIN 3852
9)
M18 x 1.5; 12 deep 40 X
F
e
Boost pressure outlet DIN 3852
9)
M18 x 1.5; 12 deep 40 X
F
S
Line from filter to suction line
(cold start)
DIN 3852
9)
M18 x 1.5; 12 deep 40 X
Y
1
, Y
2
Pilot signal (HD only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
Z Inch signal (DA4 and 8 only) DIN 3852
9)
M10 x 1; 8 deep 40 X
ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
1)
Center bore according to DIN 332 (thread according to DIN 13)2)
Observe the general instructions on page 68 for the maximum tightening torques.3)
Thread according to ASME B1.14)
Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.5)
Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.6)
Plugged with external supply.7)
Depending on installation position, T8)
1
or T
2
must be connected (see also installation instructions on pages 65 and 66).
The spot face can be deeper than specified in the appropriate standard.
9)
Optional, see page 5610)
O = Must be connected (plugged on delivery) 11)
X = Plugged (in normal operation)
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
2)3)
3)4)
2)3)
3)4)
28/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 56
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
HD
Proportional control hydraulic, pilot-pressure related
HW
Proportional control hydraulic, mechanical servo
40°
40°
120.3
20
8
27
50
63
9
ø8
154.6
b
a
147
Version with
neutral position
switch, HWL
EP
Proportional control electric
EZ
Two-point control electric
DG
Hydraulic control, direct controlled
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 29/68
Dimensions size 56
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
DA — control valve
Version 2 – fixed setting
Version 3 – mechanically adjustable with position lever
Actuating direction:
"left" (3L)
Actuating direction:
"right" (3R)
Version 4/8 – fixed setting and inch valve mounted Version 7 – fixed setting and ports for pilot control device
30/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 71
NV – Version without control module
Standard: Suction port S at bottom (02)
Option: Suction port S at top (03): port plate turned through 180°
Detail W
Boost pressure valve
Mechanical
neutral-posi-
tion adjust-
ment
HD valve with bypass
Pressure cut-off
HD valve with bypass
Flange SAE J744
127-2 (C)
M8 x 1.25;
10 deep, DIN 13
Port plate
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 31/68
Dimensions size 71
Drive shafts
Z
Splined shaft DIN 5480
W35x2x16x9g
A
Splined shaft DIN 5480
W40x2x18x9g
S
Splined shaft 1 1/4 in
14T 12/24DP
1)
T
Splined shaft 1 3/8 in
21T 16/32DP
1)
Ports
Designation Port for Standard Size
3)
Maximum
pressure [bar]
5)
State
11)
A, B Service line
Fastening thread A/B
SAE J518
6)
DIN 13
1 in
M12 x 1.75; 17 deep
450 O
S Suction line DIN 3852
9)
M42 x 2; 20 deep 5 O
7)
T
1
Drain line DIN 3852
9)
M26 x 1.5; 16 deep 3 O
8)
T
2
Drain line DIN 3852
9)
M26 x 1.5; 16 deep 3 X
8)
R Air bleed DIN 3852
9)
M12 x 1.5; 12 deep 3 X
X
1
, X
2
Control pressure (upstream of orifice) DIN 3852
9)
M12 x 1.5; 12 deep 40 X
X
1
, X
2
Control pressure
(upstream of orifice, DG only)
DIN 3852
9)
M12 x 1.5; 12 deep 40 O
X
3,
X
4
10)
Stroking chamber pressure DIN 3852
9)
M12 x 1.5; 12 deep 40 X
G Boost pressure DIN 3852
9)
M18 x 1.5; 12 deep 40 X
P
S
Pilot pressure DIN 3852
9)
M14 x 1.5; 12 deep 40 X
P
S
Pilot pressure (DA7 only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
Y Pilot pressure (DA7 only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
M
A
, M
B
Measuring pressure A, B DIN 3852
9)
M12 x 1.5; 12 deep 450 X
M
H
Measuring high pressure DIN 3852
9)
M12 x 1.5; 12 deep 450 X
F
a
Boost pressure inlet DIN 3852
9)
M26 x 1.5; 16 deep 40 X
F
a1
Boost pressure, inlet (mountable filter) DIN 3852
9)
M22 x 1.5; 14 deep 40 X
F
e
Boost pressure outlet DIN 3852
9)
M22 x 1.5; 14 deep 40 X
F
S
Line from filter to suction line
(cold start)
DIN 3852
9)
M22 x 1.5; 14 deep 40 X
Y
1
, Y
2
Pilot signal (HD only) DIN 3852
9)
M14 x 1.5; 8 deep 40 O
Z Inch signal (DA4 and 8 only) DIN 3852
9)
M10 x 1; 12 deep 40 X
ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
1)
Center bore according to DIN 332 (thread according to DIN 13)2)
Observe the general instructions on page 68 for the maximum tightening torques.3)
Thread according to ASME B1.14)
Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.5)
Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.6)
Plugged with external supply.7)
Depending on installation position, T8)
1
or T
2
must be connected (see also installation instructions on pages 65 and 66).
The spot face can be deeper than specified in the appropriate standard.
9)
Optional, see page 5610)
O = Must be connected (plugged on delivery) 11)
X = Plugged (in normal operation)
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
2)3)
3)4)
2)3)
3)4)
32/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 71
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
HD
Proportional control hydraulic, pilot-pressure related
HW
Proportional control hydraulic, mechanical servo
b
a
163.5
63
9
27
50
8
165.9
ø8
20
147
40°
40°
Version with
neutral position
switch, HWL
EP
Proportional control electric
EZ
Two-point control electric
DG
Hydraulic control, direct controlled
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 33/68
Dimensions size 71
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
DA — control valve
Version 2 – fixed setting Version 3 – mechanically adjustable with position lever
Actuating direction:
"left" (3L)
Actuating direction:
"right" (3R)
Version 4/8 – fixed setting and inch valve mounted Version 7 – fixed setting and ports for pilot control device
34/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 90
NV – Version without control module
Standard: Suction port S at bottom (02)
Option: Suction port S at top (03): port plate turned through 180°
Detail W
Boost pressure valve
HD valve with bypass
Mechanical
neutral-posi-
tion adjust-
ment
HD valve with bypass
Pressure cut-off
Flange SAE J744
152-2/4 (D)
M8 x 1.25;
10 deep, DIN 13
Port plate
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 35/68
Drive shafts
Z
Splined shaft DIN 5480
W35x2x16x9g
A
Splined shaft DIN 5480
W45x2x21x9g
S
Splined shaft 1 3/4 in
13T 8/16DP
1)
U
Splined shaft 1 1/4 in
14T 12/24DP
1)
Ports
Designation Port for Standard Size
3)
Maximum
pressure [bar]
5)
State
11)
A, B Service line
Fastening thread A/B
SAE J518
6)
DIN 13
1 in
M12 x 1.75; 17 deep
450 O
S Suction line DIN 3852
9)
M42 x 2; 20 deep 5 O
7)
T
1
Drain line DIN 3852
9)
M26 x 1.5; 16 deep 3 O
8)
T
2
Drain line DIN 3852
9)
M26 x 1.5; 16 deep 3 X
8)
R Air bleed DIN 3852
9)
M16 x 1.5; 12 deep 3 X
X
1
, X
2
Control pressure (upstream of orifice) DIN 3852
9)
M16 x 1.5; 12 deep 40 X
X
1
, X
2
Control pressure
(upstream of orifice, DG only)
DIN 3852
9)
M16 x 1.5; 12 deep 40 O
X
3,
X
4
10)
Stroking chamber pressure DIN 3852
9)
M12 x 1.5; 12 deep 40 X
G Boost pressure DIN 3852
9)
M18 x 1.5; 12 deep 40 X
P
S
Pilot pressure DIN 3852
9)
M18 x 1.5; 12 deep 40 X
P
S
Pilot pressure (DA7 only) DIN 3852
9)
M18 x 1.5; 12 deep 40 O
Y Pilot pressure (DA7 only) DIN 3852
9)
M18 x 1.5; 12 deep 40 O
M
A
, M
B
Measuring pressure A, B DIN 3852
9)
M12 x 1.5; 12 deep 450 X
M
H
Measuring high pressure DIN 3852
9)
M12 x 1.5; 12 deep 450 X
F
a
Boost pressure inlet DIN 3852
9)
M26 x 1.5; 16 deep 40 X
F
a1
Boost pressure, inlet (mountable filter) DIN 3852
9)
M22 x 1.5; 14 deep 40 X
F
e
Boost pressure outlet DIN 3852
9)
M22 x 1.5; 14 deep 40 X
F
S
Line from filter to suction line
(cold start)
DIN 3852
9)
M22 x 1.5; 14 deep 40 X
Y
1
, Y
2
Pilot signal (HD only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
Z Inch signal (DA4 and 8 only) DIN 3852
9)
M10 x 1; 8 deep 40 X
ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
1)
Center bore according to DIN 332 (thread according to DIN 13)2)
Observe the general instructions on page 68 for the maximum tightening torques.3)
Thread according to ASME B1.14)
Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.5)
Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.6)
Plugged with external supply.7)
Depending on installation position, T8)
1
or T
2
must be connected (see also installation instructions on pages 65 and 66).
The spot face can be deeper than specified in the appropriate standard.
9)
Optional, see page 5610)
O = Must be connected (plugged on delivery) 11)
X = Plugged (in normal operation)
Dimensions size 90
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
2)3)
3)4)
2)3)
3)4)
36/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 90
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
HD
Proportional control hydraulic, pilot-pressure related
HW
Proportional control hydraulic, mechanical servo
b
a
35°
35°
191.9
20
14 7
8
50
63
18 0 .7
9
27
ø8
Version with
neutral position
switch, HWL
EP
Proportional control electric
EZ
Two-point control electric
DG
Hydraulic control, direct controlled
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 37/68
Dimensions size 90
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
DA — control valve
Version 2 – fixed setting Version 3 – mechanically adjustable with position lever
Actuating direction:
"left" (3L)
Actuating direction:
"right" (3R)
Version 4/8 – fixed setting and inch valve mounted Version 7 – fixed setting and ports for pilot control device
38/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 125
NV – Version without control module
Standard: Suction port S at bottom (02)
Option: Suction port S at top (03): port plate turned through 180°
Detail W
Boost pressure valve
HD valve with bypass
Mechanical
neutral-posi-
tion adjust-
ment
HD valve with bypass
Pressure cut-off
Flange SAE J744
152-2/4 (D)
M10 x 1.5;
12.5 deep, DIN 13
Port plate
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 39/68
Dimensions size 125
Drive shafts
Z
Splined shaft DIN 5480
W40x2x18x9g
A
Splined shaft DIN 5480
W45x2x21x9g
S
Splined shaft 1 3/4 in
13T 8/16DP
1)
T
Splined shaft 2 in
15T 8/16DP
1)
Ports
Designation Port for Standard Size
3)
Maximum
pressure [bar]
5)
State
11)
A, B Service line
Fastening thread A/B
SAE J518
6)
DIN 13
1 1/4 in
M14 x 2; 19 deep
450 O
S Suction line DIN 3852
9)
M48 x 2; 22 deep 5 O
7)
T
1
Drain line DIN 3852
9)
M33 x 2; 18 deep 3 O
8)
T
2
Drain line DIN 3852
9)
M33 x 2; 18 deep 3 X
8)
R Air bleed DIN 3852
9)
M16 x 1.5; 12 deep 3 X
X
1
, X
2
Control pressure (upstream of orifice) DIN 3852
9)
M16 x 1.5; 12 deep 40 X
X
1
, X
2
Control pressure
(upstream of orifice, DG only)
DIN 3852
9)
M16 x 1.5; 12 deep 40 O
X
3,
X
4
10)
Stroking chamber pressure DIN 3852
9)
M12 x 1.5; 12 deep 40 X
G Boost pressure DIN 3852
9)
M22 x 1.5; 14 deep 40 X
P
S
Pilot pressure DIN 3852
9)
M18 x 1.5; 12 deep 40 X
P
S
Pilot pressure (DA7 only) DIN 3852
9)
M18 x 1.5; 12 deep 40 O
Y Pilot pressure (DA7 only) DIN 3852
9)
M18 x 1.5; 12 deep 40 O
M
A
, M
B
Measuring pressure A, B DIN 3852
9)
M12 x 1.5; 12 deep 450 X
M
H
Measuring high pressure DIN 3852
9)
M12 x 1.5; 12 deep 450 X
F
a
Boost pressure inlet DIN 3852
9)
M33 x 2; 18 deep 40 X
F
a1
Boost pressure, inlet (mountable filter) DIN 3852
9)
M33 x 2; 18 deep 40 X
F
e
Boost pressure outlet DIN 3852
9)
M33 x 2; 18 deep 40 X
F
S
Line from filter to suction line
(cold start)
DIN 3852
9)
M33 x 2; 18 deep 40 X
Y
1
, Y
2
Pilot signal (HD only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
Z Inch signal (DA4 and 8 only) DIN 3852
9)
M10 x 1; 8 deep 40 X
ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
1)
Center bore according to DIN 332 (thread according to DIN 13)2)
Observe the general instructions on page 68 for the maximum tightening torques.3)
Thread according to ASME B1.14)
Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.5)
Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.6)
Plugged with external supply.7)
Depending on installation position, T8)
1
or T
2
must be connected (see also installation instructions on pages 65 and 66).
The spot face can be deeper than specified in the appropriate standard.
9)
Optional, see page 5610)
O = Must be connected (plugged on delivery) 11)
X = Plugged (in normal operation)
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
2)3)
3)4)
2)3)
3)4)
40/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 125
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
HD
Proportional control hydraulic, pilot-pressure related
HW
Proportional control hydraulic, mechanical servo
b
a
193.5
ø8
50
63
27
9
8
20
35°
35°
204.4
14 7
Version with
neutral position
switch, HWL
EP
Proportional control electric
EZ
Two-point control electric
DG
Hydraulic control, direct controlled
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 41/68
Dimensions size 125
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
DA — control valve
Version 2 – fixed setting Version 3 – mechanically adjustable with position lever
Actuating direction:
"left" (3L)
Actuating direction:
"right" (3R)
Version 4/8 – fixed setting and inch valve mounted Version 7 – fixed setting and ports for pilot control device
42/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 180
NV – Version without control module
Standard: Suction port S at bottom (02)
Option: Suction port S at top (03): port plate turned through 180°
Detail W
Boost
pressure valve
HD valve with bypass
Mechanical
neutral-posi-
tion adjust-
ment
HD valve with bypass
Pressure cut-off
Flange SAE J744
165-4 (E)
M10 x 1.5;
12.5 deep, DIN 13
Port plate
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 43/68
Dimensions size 180
Drive shafts
Z
Splined shaft DIN 5480
W50x2x24x9g
S
Splined shaft 1 3/4 in
13T 8/16DP
1)
T
Splined shaft 2 1/4 in
17T 8/16DP
1)
Ports
Designation Port for Standard Size
3)
Maximum
pressure [bar]
5)
State
11)
A, B Service line
Fastening thread A/B
SAE J518
6)
DIN 13
1 1/4 in
M14 x 2; 19 deep
450 O
S Suction line DIN 3852
9)
M48 x 2; 22 deep 5 O
7)
T
1
Drain line DIN 3852
9)
M42 x 2; 20 deep 3 O
8)
T
2
Drain line DIN 3852
9)
M42 x 2; 20 deep 3 X
8)
R Air bleed DIN 3852
9)
M16 x 1.5; 12 deep 3 X
X
1
, X
2
Control pressure (upstream of orifice) DIN 3852
9)
M16 x 1.5; 12 deep 40 X
X
1
, X
2
Control pressure
(upstream of orifice, DG only)
DIN 3852
9)
M16 x 1.5; 12 deep 40 O
X
3,
X
4
10)
Stroking chamber pressure DIN 3852
9)
M12 x 1.5; 12 deep 40 X
G Boost pressure DIN 3852
9)
M22 x 1.5; 14 deep 40 X
P
S
Pilot pressure DIN 3852
9)
M18 x 1.5; 12 deep 40 X
P
S
Pilot pressure (DA7 only) DIN 3852
9)
M18 x 1.5; 12 deep 40 O
Y Pilot pressure (DA7 only) DIN 3852
9)
M18 x 1.5; 12 deep 40 O
M
A
, M
B
Measuring pressure A, B DIN 3852
9)
M12 x 1.5; 12 deep 450 X
M
H
Measuring high pressure DIN 3852
9)
M12 x 1.5; 12 deep 450 X
F
a
Boost pressure inlet DIN 3852
9)
M33 x 2; 18 deep 40 X
F
a1
Boost pressure, inlet (mountable filter) DIN 3852
9)
M33 x 2; 18 deep 40 X
F
e
Boost pressure outlet DIN 3852
9)
M33 x 2; 18 deep 40 X
F
S
Line from filter to suction line
(cold start)
DIN 3852
9)
M33 x 2; 18 deep 40 X
Y
1
, Y
2
Pilot signal (HD only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
Z Inch signal (DA4 and 8 only) DIN 3852
9)
M10 x 1; 8 deep 40 X
ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
1)
Center bore according to DIN 332 (thread according to DIN 13)2)
Observe the general instructions on page 68 for the maximum tightening torques.3)
Thread according to ASME B1.14)
Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.5)
Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.6)
Plugged with external supply.7)
Depending on installation position, T8)
1
or T
2
must be connected (see also installation instructions on pages 65 and 66).
The spot face can be deeper than specified in the appropriate standard.
9)
Optional, see page 5610)
O = Must be connected (plugged on delivery) 11)
X = Plugged (in normal operation)
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
2)3)
3)4)
3)4)
44/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 180
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
HD
Proportional control hydraulic, pilot-pressure related
HW
Proportional control hydraulic, mechanical servo
b
a
232.7
ø8
210.5
20
8
9
27
35°
35°
50
63
147
Version with
neutral position
switch, HWL
EP
Proportional control electric
EZ
Two-point control electric
DG
Hydraulic control, direct controlled
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 45/68
Dimensions size 180
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
DA — control valve
Version 2 – fixed setting
Version 4/8 – fixed setting and inch valve mounted Version 7 – fixed setting and ports for pilot control device
46/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 250
NV – Version without control module
Standard: Suction port S at bottom (10)
Option: Suction port S at top (13): port plate turned through 180°
Boost pres-
sure valve
HD valve
with bypass
Mechanical
neutral-posi-
tion adjust-
ment
HD valve
with bypass
Pressure cut-off
Flange SAE J744
165-4 (E)
Port plate
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 47/68
Drive shafts
Z
Splined shaft DIN 5480
W55x2x26x9g
S
Splined shaft 1 3/4 in
13T 8/16DP
1)
T
Splined shaft 2 1/4 in
17T 8/16DP
1)
Ports
Designation Port for Standard Size
3)
Maximum
pressure [bar]
5)
State
11)
A, B Service line
Fastening thread A/B
SAE J518
6)
DIN 13
1 1/2 in
M16 x 2; 21 deep
450 O
S Suction line DIN 3852
9)
M48 x 2; 22 deep 5 O
7)
T
1
Drain line DIN 3852
9)
M42 x 2; 20 deep 3 O
8)
T
2
Drain line DIN 3852
9)
M42 x 2; 20 deep 3 X
8)
R Air bleed DIN 3852
9)
M16 x 1.5; 12 deep 3 X
X
1
, X
2
Control pressure (upstream of orifice) DIN 3852
9)
M16 x 1.5; 12 deep 40 X
X
1
, X
2
Control pressure
(upstream of orifice, DG only)
DIN 3852
9)
M16 x 1.5; 12 deep 40 O
X
3,
X
4
10)
Stroking chamber pressure DIN 3852
9)
M16 x 1.5; 12 deep 40 X
G Boost pressure DIN 3852
9)
M14 x 1.5; 12 deep 40 X
P
S
Pilot pressure DIN 3852
9)
M18 x 1.5; 12 deep 40 X
P
S
Pilot pressure (DA7 only) DIN 3852
9)
M18 x 1.5; 12 deep 40 O
Y Pilot pressure (DA7 only) DIN 3852
9)
M18 x 1.5; 12 deep 40 O
M
A
, M
B
Measuring pressure A, B DIN 3852
9)
M14 x 1.5; 12 deep 450 X
M
H
Measuring high pressure DIN 3852
9)
M14 x 1.5; 12 deep 450 X
F
a
Boost pressure inlet DIN 3852
9)
M33 x 2; 18 deep 40 X
F
e
Boost pressure outlet DIN 3852
9)
M33 x 2; 18 deep 40 X
Y
1
, Y
2
Pilot signal (HD only) DIN 3852
9)
M14 x 1.5; 12 deep 40 O
Z Inch signal (DA4 and 8 only) DIN 3852
9)
M10 x 1; 8 deep 40 X
ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
1)
Center bore according to DIN 332 (thread according to DIN 13)2)
Observe the general instructions on page 68 for the maximum tightening torques.3)
Thread according to ASME B1.14)
Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.5)
Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.6)
Plugged with external supply.7)
Depending on installation position, T8)
1
or T
2
must be connected (see also installation instructions on pages 65 and 66).
The spot face can be deeper than specified in the appropriate standard.
9)
Optional, see page 5610)
O = Must be connected (plugged on delivery) 11)
X = Plugged (in normal operation)
Dimensions size 250
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
2)3)
3)4)
3)4)
48/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Dimensions size 250
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
HD
Proportional control hydraulic, pilot-pressure related
HW
Proportional control hydraulic, mechanical servo
273.4
8
63
9
35°
35°
240.5
27
ø8
50
20
a
b
14 7
Version with
neutral position
switch, HWL
EP
Proportional control electric
EZ
Two-point control electric
DG
Hydraulic control, direct controlled
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 49/68
Dimensions size 250
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
DA — control valve
Version 2 – fixed setting
Detail W
Version 4/8 – fixed setting and inch valve mounted Version 7 – fixed setting and ports for pilot control device
Detail W
Detail W
50/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Through drive dimensions
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
Flange SAE J744
Coupling for splined shaft (according to ANSI B92.1a)
1)
28 40 56 71 90 125 180 250
82-2 (A) 5/8 in 9T 16/32DP
l l l l l l l l
.01
101-2 (B)
7/8 in 13T 16/32DP
l l l l l l l l
.02
1 in 15T 16/32DP
l l l l l l l l
.04
N00 – Without boost pump, without through drive / F00 – With boost pump, without through drive
A1
NG A1 (N00) A1 (F00)
28 213.9 223.4
40 220.2 235.7
56 239.4 256.4
71 279.1 293.6
90 287 301
125 320.9 326.4
180 370.9 370.9
250 398.2 409
F01/K01
4)
(to mounting flange)
O-ring
3)
A1
A2
A4
ø82.55
ø17.5
106.4
106.4
A3
A5
NG
A1 (F01) A1 (K01)
A2 A3 A4
28 227.9 227.9 7.5 7.5 14.5
40 239.7 234.2 9 9 18
56 261.4 254.9 10 10 18
71 297.6 297.6 9 10 17
90 304 304 9 8 –
125 330.9 330.9 10.5 9 –
180 378.4 378.4 7.5 7.5 15.5
250 426.9 426.2 11 11 18
NG A5
2)
28 to 125 M10 x 1.5; 15 deep
180, 250 M10 x 1.5; 16.5 deep
F02/K02; F04/K04
4)
Size 28, 40, 56 Size 71, 90, 125, 180, 250
A1
A2
A3
14 6
17 4
14 6
146
ø101.6
A4
A6
A5
(to mounting flange)
O-ring
3)
NG A1 A2 A3 A4 (02) A4 (04)
28 230.4 9.7 9.7 16.2 13.7
40 240.7 11 11
5)
17 16
56 262.4 12 11 19.5 18.5
71 300.6 13 9.8 17 15.5
90 305 9 11 17 15
125 330.9 10 11 17 16.5
180 381.4 11 11 19 18
250 428.9 11 11 16 15.5
NG A5
2)
28 to 56 M12 x 1.75; 19 deep
71, 90, 180, 250
M12 x 1.75; 21 deep
125 M12 x 1.75; 18 deep
A6
F02 / K02 ø 24
F04 / K04 ø 27
30° pressure angle, flat root, side fit, tolerance class 5
1)
Thread according to DIN 13, 2) observe the general instructions on page 68 for the maximum tightening torques.
O-ring included in the delivery contents
3)
The illustration shows the 2-hole version. Please state in plain text whether the 2-hole horizontal or the 2-hole vertical version is 4)
used.
For F04/K04 9.7 mm
5)
82-2 (A)
101-2 (B)
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 51/68
Through drive dimensions
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
Flange SAE J744
Coupling for splined shaft (according to ANSI B92.1a)
1)
28 40 56 71 90 125 180 250
127-2 (C)
1 in 15T 16/32DP
–
l
– – – – – – .09
1 1/4 in 14T 12/24DP
– –
l l l l l l
.07
152-2/4 (D)
W35 2x16x9g (according to DIN 5480)
– – – –
l
– – – .73
1 3/4 in 13T 8/16DP
– – – – –
l l l
.69
F09/K09
(to mounting flange)
O-ring
3)
A1
A2
ø127
A3
181
213
A4
ø27
A5
NG A1 A2 A3 A4
40 244.7 14 14 19.5
NG A5
2)
40 M16 x 2; 20 deep
F07/K07
5)
Size 56, 71, 250 Size 90, 125, 180
4)
A1
A2
ø127
A3
181
213
181
114.5
114.5
181
A4
A5
A6
A7
O-ring
3)
(to mounting flange)
NG A1 A2 A3 A4 A5
56 266.4 15 14 17.5 ø32.7
71 303.6 15 13.5 20
90 309 13 14 20.5
125 335.9 15 15.5 22.5 ø33.5
180 384.4 14 19 17
250 425.9 16 14 16
NG A6
2)
A7
2)
56
M16 x 2; 20 deep –
71, 250
M16 x 2; 24 deep –
90, 125, 180
M16 x 2; 23 deep M12 x 1.75; 18 deep
F73/K73; F69/K69
6)
A1
A2
ø152.4
A3
161.6
228.6
266.6
161.6
200
A4
(to mounting flange)
O-ring
3)
NG A1 A2 A3 A4
2)
90 309 12 14
M20 x 2.5;
20 deep
125 343.9 18 14
180 391.9 20.9 18
250 444.9 9 17
30° pressure angle, flat root, side fit, tolerance class 5
1)
Thread according to DIN 13, 2) observe the general instructions on page 68 for the maximum tightening torques.
O-ring included in the delivery contents
3)
Size 180 only with SAE 2-hole flange4)
The illustration shows the 4- and the 2-hole version. Please state in plain text whether the 4-hole, the 2-hole horizontal or the 5)
2-hole vertical version is used.
The illustration shows the 4+2-hole version. Please state in plain text whether the 2-hole, the 4-hole or the 4+2-hole version is
6)
used.
127-2 (C)
127-2 (C)
152-2/4 (D)
52/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Through drive dimensions
Flange SAE J744
Coupling for splined shaft (according to ANSI B92.1a)
1)
28 40 56 71 90 125 180 250
165-4 (E) 1 3/4 in 13T 8/16DP
– – – – – –
l l
.72
F72/K72
A1
A2
ø165.1
A3
224.5
224.5
270
270
A4
(to mounting flange)
O-ring
3)
NG A1 A2 A3 A4
2)
180 391.9 20.9 18
M20 x 2.5;
20 deep
250 444.9 9 17
30° pressure angle, flat root, side fit, tolerance class 5
1)
Thread according to DIN 13, 2) observe the general instructions on page 68 for the maximum tightening torques.
O-ring included in the delivery contents
3)
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
Overview of mounting options
Through drive
1)
Mounting options – 2nd pump
Flange Coupling
for splined
shaft
Short
code
A4VG/32
NG (shaft)
A10V(S)O/31
Size (shaft)
A10V(S)O/53
Size (shaft)
A4FO
NG (shaft)
A11VO/1
NG (shaft)
A10VG
NG (shaft)
External
gear pump
2)
82-2 (A) 5/8 in
F/K01
– 18 (U) 10 (U) – – –
Series F
Size 4 to 22
101-2 (B) 7/8 in
F/K02
– 28 (S, R)
45 (U, W)
28 (S, R)
45 (U, W)
16 (S)
22 (S)
28 (S)
– 18 (S)
Series N
Size 20 to 36
Series G
Size 32 to 50
1 in
F/K04
28 (S) 45 (S, R) 45 (S, R)
60 (U, W)
– 40 (S) 28 (S)
45 (S)
–
127-2 (C) 1 in
F/K09
40 (U) 71 (U, W) 60 (U, W) – – – –
1 1/4 in
F/K07
40 (S)
56 (S)
71 (S)
71 (S, R)
100 (U, W)
85 (U, W) – 60 (S) 63 (S) –
152-2/4 (D)
W35
F/K73
90 (Z) – – – – – –
1 3/4 in
F/K69
90 (S)
125 (S)
140 (S) – – 95 (S)
130 (S)
145 (S)
– –
165-4 (E) 1 3/4 in
F/K72
180 (S)
250 (S)
– – – 190 (S)
260 (S)
– –
Availability of the individual sizes, see ordering code on page 3.
1)
Bosch2)
Rexroth recommends special versions of the gear pumps. Please contact us.
165-4 (E)
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 53/68
By using combination pumps, it is possible to have indepen-
dent circuits without the need for splitter gearboxes.
When ordering combination pumps, the type designations of
the 1st and 2nd pumps must be linked by a "+".
Ordering example:
A4VG56EP3D1/32R-NAC02F073SP + A4VG56EP3D1/32R-
NSC02F003SP
A tandem pump consisting of two equal sizes is permissible with-
out additional supports assuming that the dynamic acceleration
does not exceed maximum 10 g (= 98.1 m/s
2
).
We recommend the use of the 4-hole mounting flanges for size
71 and larger.
For combination pumps consisting of more than two pumps, the
mounting flange must be rated for the permissible mass torque.
Combination pumps A4VG + A4VG
Total length A
A4VG A4VG (2nd pump)
3)
(1st pump) NG28 NG40 NG56 NG71 NG90 NG125 NG180 NG250
NG28 453.8 – – – – – – –
NG40 464.1 480.4 – – – – – –
NG56 485.8 502.1 522.8 – – – – –
NG71 524.0 539.3 560.0 597.2 – – – –
NG90 528.4 544.7 565.4 602.6 610.0 – – –
NG125 554.3 571.6 592.3 629.5 644.9 670.3 – –
NG180 604.8 620.1 640.8 678.0 692.9 718.3 762.8 –
NG250 652.3 661.6 682.3 719.5 745.9 771.3 815.8 854.8
2nd pump without through drive and with boost pump, F00
1)
A
A4VG
(1st pump)
A4VG
(2nd pump)
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
54/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
The two high-pressure relief valves protect the hydrostatic
transmission (pump and motor) from overload. They limit the
maximum pressure in the respective high-pressure line and
serve simultaneously as boost valves.
High-pressure relief valves are not working valves and are only
suitable for pressure spikes or high rates of pressure change.
Setting ranges
High-pressure relief valve,
direct controlled (size 28 to 56)
Differential pressure
setting ∆p
HD
Setting range for valve 3, 5
∆p 250 - 420 bar
(see ordering code)
420 bar
400 bar
1)
360 bar
340 bar
320 bar
300 bar
270 bar
250 bar
Setting range for valve 4, 6
∆p 100 - 250 bar
(see ordering code)
250 bar
230 bar
1)
200 bar
150 bar
100 bar
High-pressure relief valve,
pilot operated (size 71 to 250)
Differential pressure
setting ∆p
HD
Setting range for valve 1,
∆p 100 - 420 bar
(see ordering code)
420 bar
400 bar
1)
360 bar
340 bar
320 bar
300 bar
270 bar
250 bar
230 bar
200 bar
150 bar
100 bar
Standard differential pressure setting. If not specified in the
1)
order, valves will be set to this value.
When ordering, state in plain text:
(only the ∆p
HD
values stated in the table are possible)
High-pressure relief valve A
Differential pressure setting __________________∆p
HD
= ... bar
Cracking pressure of the HD valve (at q
V 1
) _____ p
max
= ... bar
(p
max
= ∆p
HD
+ p
Sp
)
High-pressure relief valve B
Differential pressure setting __________________∆p
HD
= ... bar
Cracking pressure of the HD valve (at q
V 1
) _____ p
max
= ... bar
(p
max
= ∆p
HD
+ p
Sp
)
High-pressure relief valves
Setting diagram
p
Sp
q
v max
(
n = n
max
)
p
Sp
p
max
≥30 bar
q
V1
(n = 1000 rpm)
∆p drive
design
Operating pressure p
A, B
at port A, B
Safety
Boost pressure
Differential pressure ∆p
HD
HD valve setting
Setting value
pressure cut-off
Note
The valve settings are made at n = 1000 rpm
and at
V
g max
(q
v 1
). There may be deviations in the cracking pres-
sures with other operating parameters.
Example:
Operating pressure p
A,B
____________________________________
400 bar
Boost pressure p
Sp
__________________________________________
30 bar
Differential pressure ∆p
HD
_________________________________
400 bar
p
A,B
400 bar
–
p
Sp
30 bar
+
Safety
30 bar
=
∆p
HD
400 bar
Bypass function
A connection between the two high-pressure channels A and
B can be established using the bypass valve (e.g. for machine
towing).
Towing speed
The maximum towing speed is dependent on the gear ratio in
the vehicle and must be calculated by the vehicle manufac-
turer. The corresponding flow of Q = 30 L/min must not be
exceeded.
Towing distance
The vehicle may only be towed out of the immediate danger
zone.
Note:
The bypass function and the pilot-controlled high pressure
relief valves (size 71 to 250) are not illustrated in the circuit
diagrams.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 55/68
Pressure cut-off
The pressure cut-off is a pressure control which, after reaching
the set pressure, adjusts the displacement of the pump back
to V
g
min
.
This valve prevents the operation of the high-pressure relief
valves when accelerating or decelerating.
The high-pressure relief valves protect against the pressure
spikes which occur during fast swiveling of the swashplate and
limit the maximum pressure in the system.
The setting range of the pressure cut-off may be anywhere
within the entire operating pressure range. However, it must
be set 30 bar lower than the setting of the high-pressure relief
valves (see setting diagram, page 54).
Please state the setting value of the pressure cut-off in plain
text when ordering.
Schematic with pressure cut-off
Example: two-point control electric, EZ1D/EZ2D
a b
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
R F
a
F
a1
F
e
F
S
M
B
BP
S
56/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Mechanical stroke limiter
The mechanical stroke limiter is an auxiliary function allow-
ing the maximum displacement of the pump to be steplessly
reduced, regardless of the control module used.
With two threaded pins, the stroke of the stroke piston and thus
the maximum swivel angle of the pump is limited.
Dimensions
NG M1 M2 M3 M4
28
110.6 max 40.1 24 –
40
110.6 max 38.1 24 –
56
130.5 max 44 25.5 –
71
135.4 max 86.3 – 28.5
90
147 max 95.7 31.5 –
125
162 max 104.5 – 35.5
180
181.6 max 138.7 38 –
250
198.9 max 174.8 39.5 –
Schematic
1)
R F
a
F
a1
F
e
F
S
M
B
BP
S
a b
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
Mechanical stroke limiter
Ports X
3
and X
4
for
stroking chamber pressure
Dimensions
NG T1 T2 T3 T4
28
92 40.1 – 24
40
92 38.1 – 24
56
104.5 44 – 25
71
113.5 86.3 28 –
90
111.5 95.7 – 30
125
136 104.5 34 –
180
146.5 138.7 – 35
250
164.5 174.8 – 38
Schematic
1)
R F
a
F
a1
F
e
F
S
M
B
BP
S
a b
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
X
3
X
4
Designation Port for Standard
2)
Size
3)
Maximum pressure [bar]
4)
State
5)
X
3
, X
4
Stroking chamber pressure DIN 3852 M12 x 1.5; 12 deep 40 X
X
3
, X
4
Stroking chamber pressure (size 250 only) DIN 3852 M16 x 1.5; 12 deep 40 X
Sizes 28 and 250 without ports F
1)
a1
and F
S
The spot face can be deeper than specified in the appropriate standard.2)
Observe the general instructions on page 68 for the maximum tightening torques.3)
Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.4)
X = Plugged (in normal operation)5)
Before finalizing your design, request a binding installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 57/68
Version S (standard)
Filtration in the suction line of the boost pump
Standard version (preferred)
Filter type ___________________________filter without bypass
Recommendation _____________ with contamination indicator
Recommended differential pressure at filter cartridge
At ν = 30 mm
2
/s, n = n
max
____________________∆p ≤ 0.1 bar
At ν = 1000 mm
2
/s, n = n
max
_________________ ∆p ≤ 0.3 bar
Pressure at suction port S:
Continuous p
S min
(ν ≤ 30 mm
2
/s) _________≥ 0.8 bar absolute
Short-term, on cold start (t < 3 min) _______≥ 0.5 bar absolute
Maximum p
S max
_________________________ ≤5 bar absolute
The filter is not included in the delivery contents.
Schematic version S (standard)
R F
a
F
a1
F
e
F
S
M
B
BP
S
a b
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
Version E
External supply
This variation should be used in versions without integrated
boost pump (N00 or K..).
Port S is plugged.
Supply comes from port F
a
.
Filter arrangement ______________________________separate
To ensure the functional reliability, maintain the required cleanli-
ness level for the boost fluid fed in at port F
a
(see page 6).
Schematic version E
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
F
a
F
a1
F
e
F
S
M
B
BP
S
R
a b
Filtration boost circuit / external supply
Version D
Filtration in the pressure line of the boost pump,
ports for external boost circuit filter
Boost pressure inlet _____________________________ port F
a
Boost pressure outlet ____________________________ port F
e
Filter type
Filter with bypass are not recommended. For applications with
bypass please contact us.
Recommendation _____________ with contamination indicator
Note
For versions with DG control (with pilot pressure not from
boost circuit), the following filter type should be used:
Filter with bypass and with contamination indicator
Filter arrangement
Separate in the pressure line (inline filter)
Permissible differential pressure at filter cartridge
At ν = 30 mm
2
/s _____________________________ ∆p ≤ 1 bar
At cold start _________________________________ ∆p ≤ 3 bar
(valid for entire speed range n
min
– n
max
)
The filter is not included in the delivery contents.
Schematic version D
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
F
S
M
B
BF
a
F
a1
F
e
P
S
R
a b
58/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Version F
Filtration in the pressure line of the boost pump,
filter mounted
Filter type ___________________________filter without bypass
Filtration grade (absolute) ____________________ 20 microns
Filter material ________________________________ glass fiber
Pressure rating ________________________________ 100 bar
Filter arrangement ______________________mounted on pump
The filter is equipped with cold start valve and thereby pro-
tects the system from damage.
The valve opens at a differential pressure ∆p ≥ 6 bar.
Recommendation
With contamination indicator (version P, B)
(differential pressure ∆p = 5 bar)
Filter characteristics
Differential pressure/flow characteristics to ISO 3968
(valid for clean filter cartridge).
10
0.1
1
10
100
10050 200
1000 mm
2
/s
30 mm
2
/s
Flow [L/min]
Differential pressure ∆p [bar]
NG125
NG18 0
NG71 to 90
NG40 to 56
NG71 to 90
NG40 to 56
NG18 0
NG125
Schematic version F (with filter)
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
P
S
R
a b
M
B
BF
a
Version K
Filtration in the pressure line of the boost pump, with cold
start valve and ports for external boost circuit filter
Version as version D, but with additional cold start valve.
The port plate is equipped with cold start valve and thereby
protects the system from damage.
The valve opens at a differential pressure ∆p ≥ 6 bar.
Boost pressure inlet _____________________________ port F
a
Boost pressure outlet ____________________________ port F
e
Filter arrangement ___separate in the pressure line (inline filter)
The filter is not included in the delivery contents.
Schematic version K (with cold start valve)
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
P
S
R
a b
M
B
BF
a
F
e
Dimensions, version K (with cold start valve)
NG K1 K2 K3 F
e
1) 2)
40
122.5 198.7 0 M18 x 1.5; 15 deep
56
125.5 215.4 0 M18 x 1.5; 15 deep
71
145.5 239.0 8 M26 x 1.5; 16 deep
90
139.5 248.5 24 M26 x 1.5; 16 deep
125
172.0 267.9 20 M33 x 2; 18 deep
180
173.0 311.9 3 M33 x 2; 18 deep
Thread according to DIN 3852,
1) observe the general instruc-
tions on page 68 for the maximum tightening torques.
The spot face can be deeper than specified in the appropri-
2)
ate standard.
Filtration boost circuit / external supply
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 59/68
Version B
Filtration in the pressure line of the boost pump,
filter mounted, with electric contamination indicator
Filtration similar to variation F, however additionally with electric
contamination indicator.
Indication ______________________________________ electric
Connector design ______________DEUTSCH DT04-2P-EP04
(mating connector, see page 62)
Differential pressure (switching pressure) ________ ∆p = 5 bar
Maximum switching capacity at
12 V DC
________________________________________ 36 W
24 V DC ________________________________________ 72 W
Type of protection: IP 67 __________________DIN/EN 60529
Schematic version B
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
P
S
R
a b
M
B
BF
a
1 2
Filtration boost circuit / external supply
Version P
Filtration in the pressure line of the boost pump,
filter mounted, with visual contamination indicator
Version similar to variation F, however additionally with visual
contamination indicator.
Indication ____________________________ Green/red window
Differential pressure (switching pressure) ________ ∆p = 5 bar
Schematic version P
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
P
S
R
a b
M
B
B
F
a
60/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Filtration boost circuit / external supply
Dimensions with filter fitted
Version F
Filter mounted without contamination indicator
Version P
Filter mounted with contamination indicator with window
F6
F7 7
F4
F5
F3
F1
F2
A
Detail A
rotated through 90°
F6 F8
F4
F5
F3
F1
F2
A
Detail A
rotated through 90°
Version B
Filter mounted with electric contamination indicator
F6
F4
F5
F3
F1
F2
A
Detail A
rotated through 90°
NG F1 F2 F3 F4 F5 F6 F7 F8
40
201.7 4 7.7 160 17 5 135 0 42 78.5
56
218.4 64.4 163 178 138 0 42 78.5
71
239 46.5 185 203.5 155 16 29 65.5
90
248.5 56 17 9 197.5 149 0 45 81.5
125
235.9 59.4 201 219.5 171 0 53 89.5
180
279.9 40.3 202 220.4 171.9 17 36 72.5
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 61/68
Dimensions
Output voltage U
a
Detail V
not to scale
Supply voltage U
b
Ground
NG A B C
28
56.6 94 119
40
58.6 96 119
56
60.5 97.5 128.5
71
71.6 108.6 137.5
90
70.7 10 7.7 145.5
125
78 115 152.5
180
100.7 13 7.7 153.5
250
105.1 142.1 180.5
Mating connector
AMP Superseal 1.5; 3-pin
Bosch Rexroth Mat. No. R902602132
Consisting of: AMP No.
– 1 socket case, 3-pins _______________________ 282087-1
– 3 single wire seals, yellow ____________________281934-2
– 3 socket contacts 1.8 - 3.3 mm _______________ 283025-1
The mating connector is not included in the delivery contents.
This can be supplied by Bosch Rexroth on request.
For the swivel angle indicator, the pump swivel angle is mea-
sured by an electric swivel angle sensor.
As an output parameter, the Hall-effect swivel angle sensor
delivers a voltage proportional to the swivel angle (see table of
output voltages).
Please contact us if the swivel angle sensor is used for control.
Characteristics
Supply voltage U
b
10 to 30 V DC
Output voltage U
a
0.5 V
(V
g max
)
2.5 V
(V
g 0
)
4.5 V
(V
g max
)
Reverse voltage protection Short circuit-resistant
EMC resistance Details on request
Operating temperature range -40 °C to +115 °C
Vibration resistance
sinusoidal vibration
EN 60068-2-6
10
g
/ 5 to 2000 Hz
Shock resistance
continuous shock IEC 68-2-29
25
g
Resistance to salt spray
(DIN 50 021-SS)
96 h
Type of protection with mounted
mating connector
IP67 – DIN/EN 60529
IP69K – DIN 40050-9
Housing material Plastic
Output voltage
Flow
direction
Operating
pressure
Output voltage
at V
g0
at V
g max
Direction of
rotation
cw
A to B M
B
2.5 V 4.5 V
B to A M
A
2.5 V 0.5 V
ccw
B to A M
A
2.5 V 4.5 V
A to B M
B
2.5 V 0.5 V
Schematic
R F
a
F
a1
F
e
F
S
M
B
BP
S
a b
T
1
T
2
X
1
X
2
G
M
H
S
M
A
A
Electric swivel angle sensor
Swivel angle sensor
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
62/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
DEUTSCH DT04-2P-EP04
Molded, 2-pin, without bidirectional suppressor diode
(standard) __________________________________________ P
Molded, 2-pin, with bidirectional suppressor diode
(only for switching solenoid on control module EZ1/2, DA) __Q
There is the following type of protection with mounted mating
connector:
IP67 ___________________________________DIN/EN 60529
and IP69K _______________________________ DIN 40050-9
The protection circuit with bidirectional suppressor diode is
needed to limit overvoltages. Overvoltages are caused by
switching off the current with switches, relay contacts or by
disconnecting the mating connector while voltage is applied.
Circuit symbol
Without bidirectional with bidirectional
suppressor diode suppressor diode
Mating connector
DEUTSCH DT06-2S-EP04
Bosch Rexroth Mat. No. R902601804
Consisting of:
DT designation
1 housing – _____________________________DT06-2S-EP04
1 wedge – _______________________________________W2S
2 sockets – ____________________________ 0462-201-16141
The mating connector is not included in the delivery contents.
This can be supplied by Bosch Rexroth on request.
36.7
(2)
(1)
36.7
68.5
Ø37
50
Changing connector orientation
If necessary, you can change the connector orientation by turn-
ing the solenoid housing.
To do this, proceed as follows:
1. Loosen the mounting nut (1) of the solenoid. To do this, turn
the mounting nut (1) one turn counter-clockwise.
2. Turn the solenoid body (2) to the desired orientation.
3. Retighten the mounting nut. Tightening torque: 5+1 Nm.
(WAF26, 12-sided DIN 3124)
On delivery, the connector orientation may differ from that
shown in the brochure or drawing.
Connector for solenoids
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 63/68
Dimensions
1
1
2
2
Tightening torque 25 Nm
cw
ccw
max. angle of
rotation 90°
Note
Limitation 1 and 2 are function stops for inching. They are not
to be used as a mechanical limitation within the system.
We recommend limiting the angle of rotation to 85° within the
system.
Any reduction of the pilot pressure possible, independently of
the drive speed, through mechanical actuation of the position
lever. Maximum angle of rotation 90°, lever position: any.
The valve is arranged separately from the pump and is connect-
ed to the pump by a hydraulic control line via port P
S
(maximum
line length: approx. 2 m).
The rotary inch valve must be ordered separately.
NG Material No. Actuating direction
of the position lever
28, 40, 56, 71,
90
R902048734
R902048735
right
left
125 R902048740
R902048741
right
left
180, 250 R902048744
R902048745
right
left
Note:
The rotary inch valve can be used regardless of the control
module.
Schematic:
Hydraulic control, speed-related, DA
with separately attached rotary inch valve
P
S
F
a
F
a1
F
e
F
S
M
B
B
M
H
S
M
A
A
T
1
T
2
X
1
X
2
G
a b
R
T
X
Rotary inch valve (see material number)
Rotary inch valve
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
Designation Port for Standard Size
1)
Maximum pressure [bar]
2)
State
3)
X Pilot pressure DIN 3852 M14 x 1.5; 12 deep 40 O
T Drain line DIN 3852 M14 x 1.5; 12 deep 3 O
Observe the general instructions on page 68 for the maximum tightening torques.
1)
Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and 2)
fittings.
O = Must be connected (plugged on delivery)
3)
X = Plugged (in normal operation)
64/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
To ensure that rotating components (coupling hub) and fixed components (housing, circlip) do not come into contact with each
other, the installation conditions described here must be observed. This depends on the pump size and the splined shaft.
Size 28 and 40 (with free turning):
SAE and DIN splined shaft –
Note diameter of free turning (size 28: ø72, size 40: ø80).
Size 56 to 250 (without free turning):
SAE splined shaft (shaft S or T) –
The outer diameter of the shoulder on coupling hub must be smaller than the inner diameter of the circlip d
2
in the area near the
drive shaft collar (dimension x
2
– x
3
).
DIN splined shaft (shaft Z or A) –
The outer diameter of the shoulder on coupling hub must be smaller than the case diameter d
3
in the area near the drive shaft
collar (dimension x
2
– x
4
).
SAE splined shaft (splines according to ANSI B92.1a) DIN splined shaft (splines according to DIN 5480)
x
2
x
1
x
4
d
4
d
3
d
2
d
1
x
2
x
1
7
x
3
d
4
ø72
ø80
d
3
d
2
d
1
7
ø72
ø80
Coupling hub
(NG28)
(NG40)
(NG28)
(NG40)
(NG28 and 40 only)
(NG28 and 40 only)
Coupling hub
NG ød
1
ød
2 min
ød
3
ød
4
x
1
x
2
x
3
x
4
28
35 43.4 55
±0.1 101.6 3.3
+0.2
9.5 8
+0.9
10
+0.9
–0.5 –0.6 –0.6
40
40 51.4 63
±0.1 127 4.3
+0.2
12.7 8
+0.9
10
+0.9
–0.5 –0.6 –0.6
56
40 54.4 68
±0.1 127 7.0
+0.2
12.7 8
+0.9
10
+0.9
–0.5 –0.6 –0.6
71
45 66.5 81
±0.1 127 7.0
+0.2
12.7 8
+0.9
10
+0.9
–0.5 –0.6 –0.6
90
50 66.5 81
±0.1 152.4 6.8
+0.2
12.7 8
+0.9
10
+0.9
–0.5 –0.6 –0.6
125
55 76.3 91
±0.1 152.4 7.0
+0.2
12.7 8
+0.9
10
+0.9
–0.5 –0.6 –0.6
180
60 88 107
±0.1 165.1 7.4
+0.2
15.9 8
+0.9
10
+0.9
–0.5 –0.6 –0.6
250
75 104.6 121 165.1 6.3
+0.2
15.9 8
+0.9
10
+0.9
–0.5 –0.6 –0.6
Installation dimensions for coupling assembly
Before finalizing your design, request a binding
installation drawing. Dimensions in mm.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 65/68
Installation instructions
General
During commissioning and operation, the axial piston unit
must be filled with hydraulic fluid and air bled. This must also
observed following a relatively long standstill as the axial piston
unit may drain back to the reservoir via the hydraulic lines.
Particularly in the installation position "drive shaft upwards"
filling and air bleeding must be carried out completely as there
is, for example, a danger of dry running.
The case drain fluid in the pump housing must be directed to
the reservoir via the highest available drain port (T
1
, T
2
).
For combinations of multiple units, make sure that the respec-
tive case pressure in each unit is not exceeded. In the event of
pressure differences at the drain ports of the units, the shared
drain line must be changed so that the minimum permissible
case pressure of all connected units is not exceeded in any
situation. If this is not possible, separate drain lines must be
laid if necessary.
To achieve favorable noise values, decouple all connecting
lines using elastic elements and avoid above-reservoir installa-
tion.
In all operating conditions, the suction and drain lines must
flow into the reservoir below the minimum fluid level. The per-
missible suction height h
S
results from the overall loss of pres-
sure; it must not, however, be higher than h
S max
=
800 mm. The
minimum suction pressure at port S must also not fall below
0.8 bar absolute during operation (cold start 0.5 bar absolute).
Installation position
See the following examples 1 to 12.
Further installation positions are available upon request.
Recommended installation positions: 1 and 2.
Notes
Size 71 to 250 –
With the “drive shaft upwards” installation position,
an R
1
-port is necessary (special version).
If it is not possible to fill the stroking chambers via X –
1
to X
4
in the final installation position, this must be done prior to
installation.
To prevent unexpected actuation and damage, the strok- –
ing chambers must be bled via the ports X
1
, X
2
or X
3
, X
4
depending on the installation position.
In certain installation positions, an influence on the control –
characteristics can be expected. Gravity, dead weight and
case pressure can cause minor shifts in control characteris-
tics and changes in response time.
Below-reservoir installation (standard)
Below-reservoir installation means that the axial piston unit is
installed outside of the reservoir below the minimum fluid level.
1
2
T
1
T
2
R
S
h
t min
h
min
SB
a
min
X
2
,X
1
T
2
S
T
1
h
t min
h
min
SB
a
min
3
4
T
1
T
2
S
X
2
, X
1
h
t min
h
min
SB
a
min
R
T
1
T
2
S
R
1
h
t min
h
min
a
min
SB
X
4
X
3
5 6
h
t min
h
min
a
min
T
1
S
T
2
X
3
SB
h
t min
h
min
a
min
T
1
S
T
2
X
4
SB
Installation
position
Bleeding
the case
Bleeding
the stroking
chamber
Filling
1
R X
1
, X
2
S + T
1
+ X
1
+ X
2
2
– – S + T
2
3
– X
1
, X
2
S + T
2
+ X
1
+ X
2
4
R
1
X
3
, X
4
S + T
2
+ X
3
+ X
4
5
– X
3
S + T
1
+ X
3
6
– X
4
S + T
2
+ X
4
Note instructions!
Key, see page 64.
66/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
Installation instructions
Above-reservoir installation
Above-reservoir installation means that the axial piston unit is
installed above the minimum fluid level of the reservoir.
Observe the maximum permissible suction height
h
S max
= 800 mm.
Recommendation for installation position 10 (drive shaft
upward): A check valve in the drain line (cracking pressure
0.5 bar) can prevent draining of the pump housing.
7 8
L
2
S
SB
h
t min
h
min
a
min
h
S max
L
1
T
1
R
T
2
X
2
, X
1
L
2
S
SB
h
t min
h
min
a
min
h
S max
L
1
T
1
T
2
9 10
T
1
T
2
S
L
2
SB
h
t min
h
min
a
min
h
S max
L
1
X
2
, X
1
R
L
2
R
1
T
1
T
2
0.5 bar
S
h
t min
h
min
h
S max
a
min
SB
L
1
X
4
X
3
11 12
T
1
T
2
S
L
2
SB
h
t min
h
min
a
min
h
S max
L
1
X
3
T
1
T
2
S
L
2
SB
h
t min
h
min
a
min
h
S max
L
1
X
4
Installation
position
Bleeding
the case
Bleeding
the stroking
chamber
Filling
7
L
2
+ R X
1
, X
2
L
1
+ L
2
+ X
1
+ X
2
8
L
2
(S) + L
1
(T
2
) – L
2
(S) + L
1
(T
2
)
9
L
2
(S) + L
1
(T
2
) X
1
, X
2
L
2
(S) + L
1
(T
2
)
+ X
1
+ X
2
10
L
2
+ R
1
X
3
, X
4
L
1
+ L
2
+ X
3
+ X
4
11
L
2
(S) + L
1
(T
1
) X
3
L
2
(S) + L
1
(T
1
)
+ X
3
12
L
2
(S) + L
1
(T
2
) X
4
L
2
(S) + L
1
(T
2
)
+ X
4
Comply with notes on page 65!
L
1
, L
2
Filling / air bleed
R
Air bleed port
S
Suction port
T
1
, T
2
Drain port
SB
Baffle (baffle plate)
h
t min
Minimum required immersion depth (200 mm)
h
min
Minimum required spacing to reservoir bot-
tom (100 mm)
h
S max
Maximum permissible suction height (800 mm)
a
min
When designing the reservoir, ensure adequate
space between the suction line and the drain line.
This prevents the heated, return flow from being
drawn directly back into the suction line.
RE 92003/06.12 | A4VG Series 32 Bosch Rexroth AG 67/68
Notes
68/68 Bosch Rexroth AG A4VG Series 32 | RE 92003/06.12
General instructions
© This document, as well as the data, specifications and other information set
forth in it, are the exclusive property of Bosch Rexroth AG. It may not be repro-
duced or given to third parties without its consent.
The data specified above only serve to describe the product. No statements
concerning a certain condition or suitability for a certain application can be de-
rived from our information. The information given does not release the user from
the obligation of own judgment and verification. It must be remembered that our
products are subject to a natural process of wear and aging.
Subject to change.
Bosch Rexroth AG
Mobile Applications
Glockeraustraße 4
89275 Elchingen, Germany
Tel. +49 7308 82-0
Fax +49 7308 7274
info.brm@boschrexroth.de
www.boschrexroth.com/axial-piston-pumps
The pump A4VG is designed to be used in closed circuit. –
The project planning, installation and commissioning of the –
axial piston unit requires the involvement of qualified person-
nel.
Before using the axial piston unit, please read the corre- –
sponding instruction manual completely and thoroughly. If
necessary, these can be requested from Bosch Rexroth.
During and shortly after operation, there is a risk of burns on –
the axial piston unit and especially on the solenoids. Take
appropriate safety measures (e. g. by wearing protective
clothing).
Depending on the operating conditions of the axial piston –
unit (operating pressure, fluid temperature), the characteris-
tic may shift.
Service line ports: –
The ports and fastening threads are designed for the speci- -
fied maximum pressure. The machine or system manufac-
turer must ensure that the connecting elements and lines
correspond to the specified application conditions (pres-
sure, flow, hydraulic fluid, temperature) with the necessary
safety factors.
The service line ports and function ports can only be used -
to accommodate hydraulic lines.
The data and notes contained herein must be adhered to. –
The product is not approved as a component for the safety –
concept of a general machine according to ISO 13849.
The following tightening torques apply: –
Fittings: -
Observe the manufacturer's instructions regarding the
tightening torques of the fittings used.
Mounting bolts: -
For mounting bolts with metric ISO thread according to
DIN 13 or thread according to ASME B1.1, we recommend
checking the tightening torque in individual cases in accor-
dance with VDI 2230.
Female threads in the axial piston unit: -
The maximum permissible tightening torques M
G max
are
maximum values of the female threads and must not be
exceeded. For values, see the following table.
Threaded plugs: -
For the metallic threaded plugs supplied with the axial pis-
ton unit, the required tightening torques of threaded plugs
M
V
apply. For values, see the following table.
Ports
Maximum permissible
tightening torque of the
female threads M
G max
Required
tightening torque of the
threaded plugs M
V
1)
WAF
hexagon socket of the
threaded plugs
Standard Size of thread
DIN 3852 M10 x 1 30 Nm 15 Nm
2)
5 mm
M12 x 1.5 50 Nm 25 Nm
2)
6 mm
M14 x 1.5 80 Nm 35 Nm 6 mm
M16 x 1.5 100 Nm 50 Nm 8 mm
M18 x 1.5 140 Nm 60 Nm 8 mm
M22 x 1.5 210 Nm 80 Nm 10 mm
M26 x 1.5 230 Nm 120 Nm 12 mm
M33 x 2 540 Nm 225 Nm 17 mm
M42 x 2 720 Nm 360 Nm 22 mm
M48 x 2 900 Nm 400 Nm 24 mm
The tightening torques apply for screws in the "dry" state as received on delivery and in the "lightly oiled" state for installation.
1)
In the "lightly oiled" state, the M2)
V
is reduced to 10 Nm for M10 x 1 and 17 Nm for M12 x 1.5.