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Proportional directional control
valve, pilot operated with on-board
electronics (OBE) and inductive
position transducer
Type 4WRBKE
Nominal size (NG) 10, 16, 27, 35
Unit series 1X
Maximum working pressure NG10, 16, 35 P, A, B 350 bar
NG27 P, A, B 280 bar
Nominal flow rate Q
nom
85...1100 l/min
RE 29076/12.05
Overview of Contents
Contents Page
Features 1
Ordering data 2
Preferred types 3
Accessories 3
Function, sectional diagram 4
Control oil supply 5
Symbols in mid position 6
Valve spools 7
Technical data 8 to 10
On-board trigger electronics 11
Accessories for external switch-off 12
Characteristic curves 13 to 17
Unit dimensions 18 to 21
Mounting hole configurations 22 and 23
Different versions on request
– For standard applications
– Special symbols for plastics machines
Features
– Pilot operated proportional directional control valves NG10
to NG35 with approx. 20 % positive overlap, see
symbols E./W. /R5 and characteristic curves
– Adjusted by position-controlled main stage with on-board
electronics (OBE) and inductive position transducer,
calibrated at the factory
– Electronically compensated and calibrated overlap,
see characteristic curve range ±0.5 V
– Spool with linear guidance, with anti-rotation element
– Flow characteristic
• S = Progressive
– Pilot valve without position control, 4/3-way function,
optimized metering edges ensuring the stability of the
position-controlled main stage, safe mid position on switch-off
– Suitable for electrohydraulic controllers in production systems
with more demanding requirements
– For subplate attachment, mounting hole configuration NG10
to ISO 4401-05-05-0-94, NG16 to ISO 4401-07-06-0-94,
NG25 (high flow NG27) to ISO 4401-08-07-0-94 and NG32
(high flow NG35) to ISO 4401-10-08-0-94
– Subplates as per catalog sheet, NG10 RE 45055,
NG16 RE 45057, NG25 (27) RE 45059 and NG32 (35)
RE 45060 (order separately)
– Plug-in connectors to DIN 43563-AM6,
see catalog sheet RE 08008 (order separately).
2/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
Ordering data
Electrically actuated
2-stage proportional
directional con-
trol valve in 4-way
design with on-board
trigger electronics
NG10 = 10
NG16 = 16
NG27
1)
= 27
NG35
1)
= 35
Symbols = E, E1
= W, W1
= R5
With symbol E1, W1, R5
P A: q
v
B T: q
v
/2
P B: q
v
/2 A T: q
v
1)
NG27 is a high-flow version
of NG25.
NG35 is a high-flow version
of NG32.
In the high-flow versions, the ports
in the customer’s control block may
be larger, see unit dimensions on
pages 20 and 21.
– 903 =
2)
Further
information
in plain text
M = NBR seals,
suitable for
mineral oils
(HL, HLP)
to DIN 51524
D3 = With pressure
reducing valve
(fixed setting)
Interface for
trigger electronics
A1 = Setpoint input ±10 V
Electrical connection
K31 = without plug-in connector,
with unit plug to
EN 175201-804
Order plug-in connector separately
Control oil supply “x”, control oil outlet “y”
No code = “x” = external, “y” = external
E = “x” = internal, “y” = external
ET = “x” = internal, “y” = internal
T = “x” = external, “y” = internal
Voltage supply of trigger electronics
G24 = +24 V DC
6Z = Proportional solenoid with removable coil
1X = Unit series 10 to 19
(10 to 19: installation and connection dimensions unchanged)
J = Overlap compensating signal
See characteristic curve range: ±0.5 V
S = Flow characteristic
Progressive
Nominal flow rate at 10 bar valve pressure difference
NG
10 = 85 l/min
16 = 180 l/min
27 = 250 l/min or 430 l/min
35 = 1100 l/min
2)
–903
Geometry:
Switching point at 55 % stroke,
B–P opens at 50 %,
B–T closes at 65 %.
4WRBKE S J 1X 6Z G24 K31 A1 D3 M *
A
B
P
T
A
B
P
T
A
B
P
T
A
B
P
T
A
B
P
T
Transitional symbols
Hydraulics Bosch Rexroth AGRE 29076/12.05 4WRBKE
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Testing and service equipment
Test box type VT-PE-TB3, see RE 30065
Test adapter 6P+PE type VT-PA-2, see RE 30068
Accessories (not included in scope of delivery)
Type
NG Cheese-head bolts ISO 4762
Material No.
f
10 4x M6x40
2 910 151 209
16
2x M6x45
2 910 151 211
4x M10x50
2 910 151 301
27 6x M12x60
2 910 151 354
35 6x M20x90 2 910 151 532
* (see page 4) Plug-in connectors 2P+PE,
see also RE 08008
KS 1 834 482 022
KS 1 834 482 026
MS 1 834 482 023
MS 1 834 482 024
KS 90° 1 834 484 252
ISA adapter for external solenoid switch-off,
see page 12
1 834 484 245
Preferred types
Type 4WRBKE Material No.
E, E1, W, W1, R5 NG10
4WRBKE10E85SJ–1X/6ZG24K31/A1D3M 0 811 404 911
4WRBKE10E85SJ–1X/6ZG24EK31/A1D3M 0 811 404 913
4WRBKE10E1-85SJ–1X/6ZG24K31/A1D3M 0 811 404 912
4WRBKE10E1-85SJ–1X/6ZG24EK31/A1D3M 0 811 404 914
4WRBKE10W85SJ–1X/6ZG24K31/A1D3M 0 811 404 915
4WRBKE10W85SJ–1X/6ZG24EK31/A1D3M 0 811 404 917
4WRBKE10W1-85SJ–1X/6ZG24K31/A1D3M 0 811 404 916
4WRBKE10W1-85SJ–1X/6ZG24EK31/A1D3M 0 811 404 918
4WRBKE10R5-85SJ–1X/6ZG24K31/A1D3M–903 0 811 404 920
E, E1, W, W1, R5 NG16
4WRBKE16E180SJ–1X/6ZG24K31/A1D3M 0 811 404 926
4WRBKE16E180SJ–1X/6ZG24EK31/A1D3M 0 811 404 928
4WRBKE16E1-180SJ–1X/6ZG24K31/A1D3M 0 811 404 927
4WRBKE16E1-180SJ–1X/6ZG24EK31/A1D3M 0 811 404 929
4WRBKE16W180SJ–1X/6ZG24K31/A1D3M 0 811 404 930
4WRBKE16W180SJ–1X/6ZG24EK31/A1D3M 0 811 404 932
4WRBKE16W1-180SJ–1X/6ZG24K31/A1D3M 0 811 404 931
4WRBKE16W1-180SJ–1X/6ZG24EK31/A1D3M 0 811 404 933
4WRBKE16R5-180SJ–1X/6ZG24K31/A1D3M–903 0 811 404 937
E, E1 NG27
4WRBKE27E250SJ–1X/6ZG24K31/A1D3M 0 811 404 952
4WRBKE27E250SJ–1X/6ZG24EK31/A1D3M 0 811 404 956
4WRBKE27E1-250SJ–1X/6ZG24K31/A1D3M 0 811 404 953
4WRBKE27E1-250SJ–1X/6ZG24EK31/A1D3M 0 811 404 957
4WRBKE27E430SJ–1X/6ZG24K31/A1D3M 0 811 404 950
4WRBKE27E430SJ–1X/6ZG24EK31/A1D3M 0 811 404 954
4WRBKE27E1-430SJ–1X/6ZG24K31/A1D3M 0 811 404 951
4WRBKE27E1-430SJ–1X/6ZG24EK31/A1D3M 0 811 404 955
Type 4WRBKE Material No.
W, W1, R5 NG27
4WRBKE27W250SJ–1X/6ZG24K31/A1D3M 0 811 404 960
4WRBKE27W250SJ–1X/6ZG24EK31/A1D3M 0 811 404 964
4WRBKE27W1-250SJ–1X/6ZG24K31/A1D3M 0 811 404 961
4WRBKE27W1-250SJ–1X/6ZG24EK31/A1D3M 0 811 404 965
4WRBKE27W430SJ–1X/6ZG24K31/A1D3M 0 811 404 958
4WRBKE27W430SJ–1X/6ZG24EK31/A1D3M 0 811 404 962
4WRBKE27W1-430SJ–1X/6ZG24K31/A1D3M 0 811 404 959
4WRBKE27W1-430SJ–1X/6ZG24EK31/A1D3M 0 811 404 963
4WRBKE27R5-430SJ–1X/6ZG24EK31/A1D3M–903
0 811 404 969
E, E1, W, W1 NG35
4WRBKE35E1100SJ–1X/6ZG24K31/A1D3M 0 811 404 975
4WRBKE35E1100SJ–1X/6ZG24EK31/A1D3M 0 811 404 977
4WRBKE35E1-1100SJ–1X/6ZG24K31/A1D3M 0 811 404 976
4WRBKE35E1-1100SJ–1X/6ZG24EK31/A1D3M 0 811 404 978
4WRBKE35W1100SJ–1X/6ZG24K31/A1D3M 0 811 404 979
4WRBKE35W1100SJ–1X/6ZG24EK31/A1D3M 0 811 404 981
4WRBKE35W1-1100SJ–1X/6ZG24K31/A1D3M 0 811 404 980
4WRBKE35W1-1100SJ–1X/6ZG24EK31/A1D3M 0 811 404 982
4/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
Pressure reducing valve
Function, sectional diagram
General
Type 4WRBKE proportional directional control valves are pilot
operated with overlap on the main spool,
see symbols E., W. and R5 in mid position (page 6).
The pressure for the pilot valve is supplied via X and Y (exter-
nal), but may also be delivered internally via the P–T connection
(without plug). Here, please note p
max
in X and Y.
The valve electronics (OBE) are situated on the main stage
and also incorporate the inductive position transducer. The
main spool is position-controlled and the mechanical overlap
is re duced in the electronics to ⬉ ±5 % for the valve signal by
means of a jump in compensation. The valves are calibrated
at the factory (see characteristic curves), so that the manufac-
turing tolerance is extremely minimal. The main stage is pilot
operated by a 4/3-way directional control valve without position
control. The solenoid current “a” indirectly causes the deflec-
tion of the main spool P–A, while solenoid current “b” deflects
the main spool P–B. This “Or function” enables the higher level
switch-off of “a desired direction” by means of an ISA adapter
(see page 12). With this function, the solenoid and main stage
are protected at the same time. This feature can be employed
e.g. for the “Emergency Stop function” or for “Setup” mode.
Basic principle
Proportional directional control valves with symbols E., W. and
R5 are available with Q
A
:Q
B
in 1:1 or 2:1 versions. The position
of the main spool is determined by the closed-loop controlled
flow of control oil on the one hand, and by the return force of
the spring on the other hand. During this process, the valve
electronics regulate the force compensation for a precise spool
position (hysteresis ⬉ 0.3 %). Precise details are contained in
the Technical Data (see page 8).
Switch-off behavior:
After electrical switch-off, both the pilot valve and the main
stage move into the spring-centered mid position. The control
oil at the main spool is relieved of pressure to T or Y.
Note:
– NG27 is a high-flow version with mounting
hole configura tion NG25
– NG35 is a high-flow version with mounting
hole configura tion NG32.
For high-flow versions, ports P, A, B and T may be larger in the
customer’s control block.
The max. hole Ø are described in the dimensions of NG27 on
page 20 and NG35 on page 21.
EN 61000-6-2: 2002-08
EN 61000-6-3: 2002-08
Main stage
Pilot valve
* 90° plug 1 834 484 252 should
preferably be used, not included
in scope of delivery.
Position transducer and
on-board electronics
(see page 3)
Hydraulics Bosch Rexroth AGRE 29076/12.05 4WRBKE
5/24
Pv Tv
XY
P
T
YX
PvTv
13
6
52
72
+0,5
+1
+1
a 0 b
A
B
G
P
TY
X
X
a 0 b
A
B
G
P
TY
a 0 b
A
B
G
P
T
P
a 0 b
A
B
G
P
T
Plug 1 2
NG10...27 1 813 464 007 SW3
NG35 1 813 464 001 SW4
Conversion
The pilot valve can be supplied with oil both via ports
X and Y (external) and from the main flow ducts P and T.
In the basic version, the valve is equipped with the plugs
1 and 2, i. e. X and Y are external.
Valve versions with X and/or Y as internal (see ordering data)
may be achieved by means of a conversion (see diagram
above).
When the control oil supply or outlet is changed, the part
number must also be changed.
No code = “x” = external, “y” = external
E = “x” = internal, “y” = external
ET = “x” = internal, “y” = internal
T = “x” = external, “y” = internal
Type ... no code
Type ... – ... E ...
Type ... – ... ET ...
Type ... – ... T ...
Symbol in detail
Pilot valve
Main stage
NG10, 27, 35 NG16
Control oil supply
6/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
Symbols in mid position “E”, “W”, “R5”
Spool valves with overlap
With symbol “E”, leakage oil in the two work chambers A and B
of the control piston results in a buildup of pressure in A or B,
which then causes a connecting cylinder to drift out of position.
In many cases, the “W” or “R5” symbol is a better solution.
With a setpoint of “0”, the control piston moves into the over-
lapped mid position.
In this mid position, ports A and B are then relieved of pressure
with small openings to T.
This also supports the function of external check valves.
Flow in mid position
“leakage pressure relief”
Q = f (∆s)
0 ... ± 25 %
NG10
NG16
NG27
NG35
∆p
X
Q
X
= Q
nom
·
冪莦
5 bar
“E”
“W”/“R5”
or
Hydraulics Bosch Rexroth AGRE 29076/12.05 4WRBKE
7/24
Valve spools
Asymmetrical valve spools
Q
A
: Q
B
= 2:1
The two throttling cross-sections of proportional directional
control valves are usually symmetrical.
In order to adapt to differential cylinders with different surface
areas, valve spools with asymmetrical metering edges are
available.
A comparison of the flow rates can be found in the product
range overview “Preferred types, characteristic curves”.
Valve spools in a differential circuit, symbol “R5”
Q
A
: Q
B
= 2:1
In order to produce differential circuits, valve spools with an
additional “4th position” are available (see diagram).
A check valve must be installed in the consumer lines, but not
in the case of symbol B–P with internal connection.
We recommend that you consult the BRH Application Center
with regard to using these special symbols for your application.
As a rule, a simulation or knowledge of this type of system is
required.
8/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
Technical data
General
Construction Spool type valve, pilot operated
Actuation
Pilot operated, proportional 4/3 directional control valve NG6 without position control
Main stage Position-controlled, with OBE on the main stage
Type of mounting Subplate, mounting hole configuration to ISO 4401
Installation position Optional
Ambient temperature range °C –20...+50
Vibration resistance, test condition
Max. 25 g, shaken in 3 dimensions (24 h)
Hydraulic (measured with HLP 46,
oil
= 40 °C ±5 °C)
Pressure fluid Hydraulic oil to DIN 51524...535, other fluids after prior consultation
Viscosity range recommended mm
2
/s 20...100
Viskositätsbereich max. permitted mm
2
/s 10...800
Pressure fluid temperature range °C –20...+70
Max. permitted degree of contamination
of pressure fluid
Purity class to ISO 4406 (c)
Class 18/16/13
1)
Direction of flow
See symbol
NG10 NG16 NG27 NG35
Nominal flow rate
l/min
at ∆p = 5 bar per edge
2)
85 180 430 1100
Weight kg
9.1 11 18.8 80.8
Max. working pressure in P, A, B bar
350 350 280 350
Max. pressure in X (ext.) bar
280
Max. pressure in P (X = int.) bar
280
Max. pressure in T (Y = ext.) bar
250
Max. pressure in T (Y = int.) bar
50
Max. pressure in Y (ext.) bar
50
Min. control oil pressure of “pilot stage” 15
Q
max
l/min
170 450 1200 3000
Q
N
pilot valve (supply pressure) l/min
∆p = 5 bar
5 6.5 22 22
Leakage of pilot valve cm
3
/min
at 100 bar
< 240 < 260 < 300 < 300
Leakage of main stage l/min
Sb E at 100 bar
Q
N
: Sb W/R5, see page 6
< 0.25 < 0.4 < 0.6 < 1.2
Static/Dynamic
Overlap in mid position ⬇ 18...22 % of spool stroke, electrically compensated for U
D – E
±0.5 V
Spool stroke, main stage ± mm
4 7 10 12.5
Control oil volume of cm
3
main stage 100 %
1.1 4.3 11.3 41.5
Control oil requirement 0...100 %, l/min
x = 100 bar
2.2 4.7 11.7 15.6
Hysteresis % < 0.3
Positioning accuracy %
< 0.5
Manufacturing tolerance %
< ±5
Response time for signal change 0...100 % ms
(x = 100 bar)
< 35 < 55 < 60 < 140
Switch-off behavior After electrical shut-off (pilot valve in mid position),
the main stage moves to spring-centered mid position (Sb E., W or R5)
Thermal drift
< 1 % at ∆T = 40 °C
Calibration Factory-set ±1 %, see flow curves
bar
1)
The purity classes stated for the components must be complied with in hydraulic systems.
Effective filtration prevents problems and also extends the service life of components.
For a selection of filters, see catalog sheets RE 50070, RE 50076 and RE 50081.
2)
Flow rate at a different
∆p
X
∆p Q
X
= Q
nom
·
冪莦
5
Hydraulics Bosch Rexroth AGRE 29076/12.05 4WRBKE
9/24
Technical data
Electrical, valve with on-board electronics
Cyclic duration factor % 100
Degree of protection IP 65 to DIN 40050 and IEC 14434/5
Connection Plug-in connector 6P+PE, DIN 43563
Power supply
Terminal A:
Terminal B: 0 V
24 V DC
nom
min. 21 V DC/max. 40 V DC
Ripple max. 2 V DC
Power consumption 40 VA max.
External fuse 2.5 A
F
Input, “Standard” version
Terminal D: U
D–E
Terminal E:
Differential amplifier, R
i
= 100 kΩ
0...±10 V
0 V
Max. differential input voltage
at 0 V
D B
E B
}
max. 18 V DC
Test signal, “Standard” version
Terminal F: U
Test
Terminal C:
LV DT
0...±10 V
Reference 0 V
Protective conductor and screen See pin assignment (installation conforms to CE)
Recommended cable See pin assignment
up to 20 m 7 x 0.75 mm
2
up to 40 m 7 x 1 mm
2
Calibration
Overlap and Q
P – A
at +8 V calibrated at the factory, see valve characteristic curve
Conformity EN 61000-6-2: 2002-08
EN 61000-6-3: 2002-08
Note
Pilot operated proportional directional control valves with
positive overlap perform their function in open or closed-
loop-controlled axes and have approx. 20 % overlap when
switched off.
This state does not constitute a safe, active basic position.
For this reason, many applications require the use of “external
check valves” or – in the case of this valve – the ISA adapter
on the solenoid, which must be taken into account during the
On/Off switching sequence.
10/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
Connection
For electrical data, see page 9 and
Operating Instructions 1 819 929 083
Technical notes on the cable
Version: – Multi-wire cable
– Extra-finely stranded wire
to VDE 0295, Class 6
– Protective conductor, green/yellow
– Cu braided screen
Types: – e.g. Ölflex-FD 855 CP
(from Lappkabel company)
No. of wires: – Determined by type of valve,
plug types and signal assignmen
Cable Ø: – 0.75 mm
2
up to 20 m long
– 1.0 mm
2
up to 40 m long
Outside Ø: – 9.4...11.8 mm – Pg11
– 12.7...13.5 mm – Pg16
Note
Voltage supply 24 V DC nom.,
if voltage drops below 18 V DC, rapid shutdown resembling
“Enable OFF” takes place internally.
In addition, with the “mA signal” version:
I
D–E
⭌ 3 mA – valve is active
I
D–E
⬉ 2 mA – valve is deactivated.
Electrical signals emitted via the trigger electronics
(e.g. feedback signal) must not be used to shut down
safety-relevant machine functions! (See European Standard,
“Technical Safety Requirements for Fluid-Powered Systems
and Components – Hydraulics”, EN 982).
Hydraulics Bosch Rexroth AGRE 29076/12.05 4WRBKE
11/24
Pin assignment
Version: U
D–E
±10 V
(R
i
= 100 kΩ)
On-board trigger electronics
Block diagram/pin assignment
Version: U
D–E
±10 V
Supply
Supply zero
Ref zero *
Setpoint 0...±10 V
Feedback signal
0...±10 V
Protective conductor 쓔
Screen
* Do not connect
to supply zero!
12/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
Accessories for external switch-off (ISA adapter)
Function
Interrupt Safety Adapter, protective circuit and plug connection
for external solenoid switch-off (Emergency Off circuit).
Circuit with ISA adapter
Note
The manufacturer of the complete system
is responsible for ensuring that installation
conforms to EMC guidelines.
Symbol Application kg Material No.
ISA adapter for Rexroth control solenoids up to 50 VA 0.07 1 834 484 245
Control cabinet
Safety circuit
Shield on:
For EMC: shielded cable
Solenoid
Pilot valve
ISA adapter
OBE cable
Hydraulics Bosch Rexroth AGRE 29076/12.05 4WRBKE
13/24
Characteristic curves (measured with HLP 46,
oil
= 40 °C ±5 °C)
NG10
∆p = 5 bar
υ = 36 mm
2
/s
* Comp. U
D – E
±0.5 V
Factory setting ±1 %
** Q
P – A
at + 8 V [U
D – E
]
Manufacturing tolerance Q
max
⬉ ±5 %
Q
A
: Q
B
= 85 : 85 l/min
Q
A
: Q
B
= 85 : 55 l/min
Q
A
: Q
B
= 85 : 55 l/min
14/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
Characteristic curves (measured with HLP 46,
oil
= 40 °C ±5 °C)
NG16
∆p = 5 bar
υ = 36 mm
2
/s
* Comp. U
D – E
±0.5 V
Factory setting ±1 %
** Q
P – A
at + 8 V [U
D – E
]
Manufacturing tolerance Q
max
⬉ ±5 %
Q
A
: Q
B
= 180 : 180 l/min
Q
A
: Q
B
= 180 : 110 l/min
Q
A
: Q
B
= 180 : 110 l/min
Hydraulics Bosch Rexroth AGRE 29076/12.05 4WRBKE
15/24
Characteristic curves (measured with HLP 46,
oil
= 40 °C ±5 °C)
NG27
∆p = 5 bar
υ = 36 mm
2
/s
* Comp. U
D – E
±0.5 V
Factory setting ±1 %
** Q
P – A
at + 8 V [U
D – E
]
Manufacturing tolerance Q
max
⬉ ±5 %
Q
A
: Q
B
= 250 : 250 l/min
Q
A
: Q
B
= 250 : 170 l/min
Q
A
: Q
B
= 430 : 430 l/min
Q
A
: Q
B
= 430 : 250 l/min
Q
A
: Q
B
= 430 : 430 l/min
Q
A
: Q
B
= 430 : 250 l/min
16/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
Characteristic curves (measured with HLP 46,
oil
= 40 °C ±5 °C)
NG35
∆p = 5 bar
υ = 36 mm
2
/s
* Comp. U
D – E
±0.5 V
Factory setting ±1 %
** Q
P – A
at + 8 V [U
D – E
]
Manufacturing tolerance Q
max
⬉ ±5 %
Q
A
: Q
B
= 1100 : 1100 l/min
Q
A
: Q
B
= 1100 : 600 l/min
Hydraulics Bosch Rexroth AGRE 29076/12.05 4WRBKE
17/24
Characteristic curves (measured with HLP 46,
oil
= 40 °C ±5 °C)
Response time x = 100 bar
Open Close
NG10
NG16
NG27
NG35
18/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
Unit dimensions NG10 (nominal dimensions in mm)
Mounting hole configuration:
NG10 (ISO 4401-05-05-0-94),
see page 22
For subplates, see catalog sheet RE 45055
Not included in scope of delivery
Required surface quality
of mating component
Hydraulics Bosch Rexroth AGRE 29076/12.05 4WRBKE
19/24
Unit dimensions NG16 (nominal dimensions in mm)
Mounting hole configuration:
NG16 (ISO 4401-07-06-0-94),
see page 22
For subplates, see catalog sheet RE 45057
Not included in scope of delivery
Required surface quality
of mating component
20/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
Unit dimensions NG27 (nominal dimensions in mm)
Mounting hole configuration:
NG25 (ISO 4401-08-07-0-94),
see page 23
For subplates, see catalog sheet RE 45059
Required surface quality
of mating component
Not included in scope of delivery
Note
NG27 is a high-flow version of NG25,
holes P, A, B and T have a diameter of
32 mm in the main stage. Contrary to the
standard, ports P, A, B and T may have
a max. diameter of 32 mm in the control
block. The control block with Ø 32 mm
holes and the NG27 valve together
achieve higher flow rates at a low
∆p
.
Hydraulics Bosch Rexroth AGRE 29076/12.05 4WRBKE
21/24
Unit dimensions NG35 (nominal dimensions in mm)
Mounting hole configuration: NG32
(ISO 4401-10-08-0-94),
see page 23
For subplates, see catalog sheet RE 45060
Required surface quality
of mating component
Not included in scope of delivery
Note
NG35 is a high-flow version of NG32,
holes P, A, B and T have a diameter of
50 mm in the main stage. Contrary to the
standard, ports P, A, B and T may have
a max. diameter of 48 mm in the control
block. The control block with Ø 48 mm
holes and the NG35 valve together
achieve higher flow rates at a low
∆p
.
22/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
PATBL XY
G
1
G
2
F
1
F
2
F
3
F
4
F
5
F
6
50 34.1 18.3 65.9 0 76.6 88.1 76.6 18.3 0 101.6 101.6 0 34.1 50
14.3 55.6 14.3 55.6 34.9 15.9 57.2 0 69.9 0 0 69.9 69.9 –1.6 71.5
20
1)
20
1)
20
1)
20
1)
6.3 6.3 6.3 4 4
M10
2)
M10
2)
M10
2)
M10
2)
M6
2)
M6
2)
X
Y
PATBF
1
F
2
F
3
F
4
XYR
27 16.7 3.2 37.3 0 54 54 0 –8 62 50.8
6.3 21.4 32.5 21.4 0 0 46 46 11 11 32.5
10.5
1)
10.5
1)
10.5
1)
10.5
1)
M6
2)
M6
2)
M6
2)
M6
2)
6.3 6.3
10.5
1)
X
Y
Mounting hole configurations (nominal dimensions in mm)
NG10 – ISO 4401-05-05-0-94
1)
Deviates from standard
2)
Thread depth:
Ferrous metal 1.5 x Ø*
Non-ferrous 2 x Ø
* (NG10 min. 10.5 mm)
1)
Deviates from standard
2)
Thread depth:
Ferrous metal 1.5 x Ø
Non-ferrous 2 x Ø
NG16 – ISO 4401-07-06-0-94
Hydraulics Bosch Rexroth AGRE 29076/12.05 4WRBKE
23/24
PATBXY
G
1
G
2
F
1
F
2
F
3
F
4
F
5
F
6
114.3 82.5 41.3 147.6 41.3 168.3 147.6 41.3 0 190.5 190.5 0 76.2 114.3
35 123.8 35 123.8 130.2 44.5 0 158.8 0 0 158.8 158.8 0 158.8
48
1)
48
1)
48
1)
48
1)
11.2 11.2 7.5 7.5
M20
2)
M20
2)
M20
2)
M20
2)
M20
2)
M20
2)
X
Y
PATBLXYG
1
G
2
F
1
F
2
F
3
F
4
F
5
F
6
77 53.2 29.4
100.8
5.6 17.5 112.7 94.5 29.4 0 130.2 130.2 0 53.2 77
17.5 74.6 17.5 74.6 46 73 19 –4.8 92.1 0 0 92.1 92.1 0 92.1
32
1)
32
1)
32
1)
32
1)
11.2 11.2 11.2 7.5 7.5
M12
2)
M12
2)
M12
2)
M12
2)
M12
2)
M12
2)
X
Y
Mounting hole configurations (nominal dimensions in mm)
NG25 – ISO 4401-08-07-0-94
1)
Deviates from standard
2)
Thread depth:
Ferrous metal 1.5 x Ø
Non-ferrous 2 x Ø
1)
Deviates from standard
2)
Thread depth:
Ferrous metal 1.5 x Ø
Non-ferrous 2 x Ø
NG32 – ISO 4401-10-08-0-94
Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Telefon +49 (0) 93 52 / 18-0
Telefax +49 (0) 93 52 / 18-23 58
documentation@boschrexroth.de
www.boschrexroth.de
© 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
reproduced or given to third parties without its consent.
The data specified above only serve to describe the product. No state-
ments concerning a certain condition or suitability for a certain application
can be derived from our information. The information given does not release
the user from the obligation of own judgement and verification. It must be
remembered that our products are subject to a natural process of wear and
aging.
24/24 Bosch Rexroth AG Hydraulics 4WRBKE RE 29076/12.05
Notes
