Axial piston pumps type PVPC
variable displacement, by a full line of mechanical controls
PVPC are variable displacement axial
piston pumps for high pressure opera-
tion, with low noise level, suitable for
hydraulic oils or synthetic fluids having
symilar lubricating characteristics.
The actual displacement is dependent
on the lenght of stroke of the pumping
pistons
. This lenght of stroke is
determined by the position of the swa-
shing plate
that is achieved by two
servo pistons
with differential areas,
against a spring
.
The rotating barrel
forces the pistons
in a circular path in and out of the bar-
rel and fluid displacement takes place.
Typical section on side shows version
L with manual pressure compensator
and flow regulation
.
The available hydraulic controls are
shown in sections
. The wide range of
electrohydraulic proportional controls is
shown in tab. A170.
SAE J744 mounting flange and shaft
(see note 1).
Max displacement: 29-46-73-88 cm
3
/rev.
Max pressure: 280 bar working
350 bar peak.
A160
PVPC-L-4046
www.atos.com Table A160-11/E
PVPC – – / /31044 /*X2E C 4 046 X 101
Type of control (see section
):
C = manual pressure compensator
CH = manual pressure compensator, with venting
R = remote pressure compensator
L = load sensing (pressure & flow)
LW= constant power (combined pressure & flow)
For electrohydraulic proportional controls, see
table A170
Size:
3 = for displacement 029
4 = for displacement 046
5 = for displacement 073 and 090
Max displacement of axial piston pump:
029 = 29 cm
3
/rev
046 = 46 cm
3
/rev
073 = 73 cm
3
/rev
090 = 88 cm
3
/rev
Type of PFE (for double pumps), see tab. A005
1) pumps with ISO 3019/2 mounting flange and shaft (option /M) are available on request
Shaft (SAE Standard) (1):
1 =
keyed (7/8” for 029 - 1” for 046 -
1 1/4”
for 073 and 090)
5 =
splined (13 teeth for 029 - 15 for 046 - 14 for 073 and 090)
Direction of rotation (viewed at the shaft end)
D =
clockwise
S =
counterclockwise
MODEL CODE
Variable displacement
axial piston pump
Eventual suffix for double pumps
X2E = with a fixed displacement
pump type PFE (see tab. A005)
1
D
X = without connector (only for CH version)
See section for available connectors, to be ordered separately
24DC
Series number
Supply voltage, see section
(only for CH version)
Pump model PVPC-*-3029 PVPC-*-4046 PVPC-*-5073 PVPC-*-5090
Displacement [cm
3
/rev] 29 46 73 88
Theoretical max flow at 1450 rpm [l/min] 42 66,7 105,8 127,6
Max working pressure / Peak pressure[bar] 280/350 280/350 280/350 250/315
Min/Max inlet pressure [bar abs.] 0,8 / 25 0,8 / 25 0,8 / 25 0,8 / 25
Max pressure on drain port [bar abs.] 1,5 1,5 1,5 1,5
19,9 31,6 50,1 54,1
Max torque on the first shaft [Nm]
Speed rating [rpm]
Type 1
200
Power consumption at 1450 rpm and at
maximum pressure and displacement
Max permissible load
on drive shaft
2 OPERATING CHARACTERISTICS
600 ÷ 3000 600 ÷ 2600 600 ÷ 2200 600 ÷ 1850
[kW]
F
ax
Frad
[N]
Type 5
190
Type 1
230
Type 5
330
Type 1
490
Type 5
620
Type 1
490
Type 5
620
1000
1500
1500
1500
2000
3000
2000
3000
Notes: For speeds over 1800 rpm the inlet port
must be under oil level with adequate pipes.
Maximum pressure for all models with water glycol
fluid is 160 bar, with option /PE is 190 bar.
Max speed with options /PE and for water glycol fluid is
2000/1900/1600/1500 rpm respectively for the four sizes.
Fax = axial load
F
rad = radial load
External load position
Seals material:
omit for NBR (mineral oil &
water glycol)
PE = FPM
See notes in section
–
Installation position Any position. The drain port must be on the top of the pump. Drain line must be separated and
unrestricted to the reservoir and extended below the oil level as far from the inlet as possible.
Suggested maximum line lenght is 3 m.
Ambient temperature from -20°C to +70°C
Fluid Hydraulic oil as per DIN 51524...535; for other fluids see section
Recommended viscosity 15÷100 mm
2
/sec at 40˚C (ISO VG 15÷100). Maximum start-up viscosity: 1000 mm
2
/sec
Fluid contamination class ISO 4401 class 21/19/16 NAS 1638 class 10 (filters at 25 µm value with ß25 ≥ 75 recommended)
Fluid temperature -20°C +60°C -20°C +50°C (water glycol) -20°C +80°C (seals /PE)
MAIN CHARACTERISTICS OF VARIABLE DISPLACEMENT AXIAL PISTON PUMP TYPE PVPC
3
FunctionCode of connector
SP-666
SP-667
Connector IP-65, suitable for direct connection to electric supply source
As SP-666 connector IP-65 but with built-in signal led, suitable for direct connection to electric supply source
4 ELECTRIC CONNECTORS ACCORDING TO DIN 43650 FOR VERSION CH
The connectors must be ordered separately
3.1 Coils characteristics (for version CH)
Insulation class H
Connector protection degree IP 65
Relative duty factor 100%
Supply voltage and frequency See electric feature
Supply voltage tolerance ± 10%
D1
D2
A
D2
IN
IN
D2
B
C
C
IN
B
D2
D2
C
IN
A
D2
IN
B
IN
D2
C
B
IN
D2
C
6 INSTALLATION POSITION
VERTICAL INSTALLATION
HORIZONTAL INSTALLATION
IN: inlet line - D1: drain line - A: minimum distance between inlet and drain line - B+C: permissible suction height - C: inlet line immersion dept
INSIDE THE TANK
Minimum oil level equal or above the pump
mounting surface.
A 200mm
INSIDE THE TANK
Minimum oil level below the pump moun-
ting surface.
Minimum inlet pressure = 0,8 bar (absolute)
B 800mm, C= 200mm
OUTSIDE THE TANK, above oil level
Minimum inlet pressure = 0,8 bar (absolute)
B 800mm, C= 200mm
OUTSIDE THE TANK, below oil level
C= 200mm
INSIDE THE TANK
Minimum oil level equal or above the pump
mounting surface.
A 200mm
INSIDE THE TANK
Minimum oil level below the pump moun-
ting surface.
Minimum inlet pressure = 0,8 bar absolute
B 800mm, C= 200mm
OUTSIDE THE TANK, above oil level
Minimum inlet pressure = 0,8 bar absolute
B 800mm, C= 200mm
The pump is supplyed whit drain D2 open,
and D1 plugged. Before installation fill the
pump with hydraulic oil for at least 3/4 of its
volume, keeping it in horizontal position.
With exception of pump mounted below the
oil level, we recomend to interpose a baffle
plate between inlet and drain line.
ALTERNATE
CURRENT
DIRECT
CURRENT
12 DC
24 DC
24/50AC
110/50 AC
220/50 AC
19,2 W
19 W
External supply
nominal voltage ±10%
Power
consumption
5 ELECTRIC FEATURES FOR VERSION CH
Average values based ambient/coil temperature of 20°C.
1,61 A
0,80 A
0,89 A
0,19 A
0,09 A
Nominal
courrent
Insulation Class:
H
Protection degree:
IP65
Coil
characteristics
7.3.1 Response times and pressure peack
due to variation 0% → 100% → 0% of
the pump displacement, obtained with
an istantaneously opening and shut-off
of the delivery line.
7.3.2 Variation of inlet pressure and reduc-
tion of displacement with increasing
speed rating
7.3 Response times
Speed rating [rpm/rpmmax]
Inlet pressure [rbar abs.]
Displacement rating [cm
3
/cm
3
max]
Pressure [bar]Swashing plate angle
Time [ms]
αmax
αmin
Pump type T1 (ms) T2 (ms)
PVPC-*-3029 31 19
PVPC-*-4046 44 20
PVPC-*-5073 50 25
PVPC-*-5090 53 28
1 = Volumetric efficiency 4 = Power consumption with full flow
2 = Overall efficiency 5 = Power consumption at pressure compensation
3 = Flow versus pressure curve
PVPC-*-3029 PVPC-*-4046 PVPC-*-5073
7.2 Operating limits
Operating pressure [bar] Operating pressure [bar]
Flow [l/min] Efficiency [%]
Power consumption [kW]
Power consumption [kW]
Power consumption [kW]
Flow [l/min] Efficiency [%]
Flow [l/min] Efficiency [%]
Operating pressure [bar]
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
PVPC-*-5090
Operating pressure [bar]
Power consumption [kW]
Flow [l/min] Efficiency [%]
1
2
3
4
5
A160
7 DIAGRAMS at 1450 rpm (based on mineral oil ISO VG 46 at 50°C)
Noise level [dB]
Operating pressure [bar]
Noise level [dB]
Operating pressure [bar]
Noise level [dB]
Operating pressure [bar]
Ambient noise levels measured in compliance with ISO 4412-1 oleohydraulics -Test procedure to define the ambient noise level - Pumps
Shaft speed: 1450 rpm.
= Qmax = Qmin
7.1 Noise level curves
PVPC-*-3029 PVPC-*-4046 PVPC-*-5073 and PVPC-*-5090
HYDRAULIC AND ELECTROHYDRAULIC CONTROLS8
Manual pressure compensator
The pump displacement decreases when the
line pressure approaches the setting pressu-
re of the compensator. The pump supplies
only the fluid required by the system.
Pressure may be steplessly adjusted at the
pilot valve.
Compensator setting range: 20 ÷ 350 bar
(315 bar for 090)
Compensator standard setting: 280 bar
(250 bar for 090)
Pressure [bar]
Pressure [bar]
Pressure [bar]
Pressure [bar]
C
CH
R
L
Manual pressure compensator
with venting
As C plus venting function, when a long
unloading time is required and heat genera-
tion and noise have to be kept at lowest
level.
Venting valve solenoid voltage, see section
Venting valve OFF = null displacement
Venting valve ON = max displacement
Compensator setting range: 20 ÷ 350 bar
(315 bar for 090)
Compensator standard setting: 280 bar
(250 bar for 090)
Remote pressure compensator
As C, but with remote setting of the compen-
sator by means of a pressure relief valve on
the piloting line X.
This version can be obtained from version L
using a blind plug UNI 5923 M4x12 in pos.
l
and a restrictor M4 drilled ø 0,75 mm in pos. .
Compensator setting range: 20 ÷ 350 bar
(315 bar for 090)
Compensator standard setting: 280 bar
(250 bar for 090)
Load sensing
The pump displacement is automatically adju-
sted to maintain a constant (load indipendent)
pressure drop across an external throttle.
Changing the throttle regulation, the pump flow
is consequently adjusted.
Load sensing control always incorporates an
hydraulic compensator to limit the maximum
pressure.
Compensator setting range: 20 ÷ 350 bar
(315 bar for 090)
Compensator standard setting:
280 bar
(250 bar for 090)
Differential pressure setting range: 10 ÷ 40 bar
Differential pressure standard setting: 14 bar
not supplied
Flow [l/min]Flow [l/min]Flow [l/min]Flow [l/min]
Hysteresis and pressure
increasing; max 4 bar
Hysteresis and pressure
increasing; max 4 bar
Hysteresis and pressure
increasing; max 4 bar
Hysteresis and pressure
increasing; max 4 bar
Constant power
In order to achieve a constant drive torque
with varying operating pressure. The swashing
angle and therefore the outlet flow is varied so
that the product of flow and pressure remains
constant.
For the best regulation, minimum working pres-
sure is 80 bar.
While selecting LW control, the required value
of power must be communicated with the order
(ex. 10 kW at 1450 rpm).
300
not supplied
LW
Pressure [bar]
Flow [% of max]
Theoretical
power
curve
Maximum
power
curve
Minimum
power
curve
solenoid venting valve
DIMENSIONS OF PVPC-*-3029: BASIC VERSION “C” CONTROL9
A160
SHAFT TYPE “1” SHAFT TYPE “5”
SAE “B” SPLINED
13 TEETH 16/32 PITCH
30˚ INVOLUTE SPLINE
INTERMEDIATE FLANGE SAE “A” FOR PFE-31
SAE “A” SPLINED
9 TEETH 16/32 PITCH
100 Nm MAX
Drawing shows pumps with clockwise rotation (option D): pumps with counterclockwise rotation (option S) will have inlet and outlet ports inverted
OR-2325
SAE “B” SPLINED
13 TEETH 16/32 PITCH
135 Nm MAX
OR-3400
INTERMEDIATE FLANGE SAE “B” FOR PFE-41
PORTS DIMENSION
IN = Flange SAE 3000 1 1/4”
OUT = Flange SAE 6000 3/4”
D1, D2 = 1/2” BSPP
= Regulation screw for max displacement 1,5 cm
3
/rev per turn. Adjustable range 50% to 100% of max displacement.
In case of double pump the regulation screw is not always available, please contact our technical office.
DRAIN PORT
INLET PORT
OUTLET
PORT
IN
OUT
Mass: 18 kg
DRAIN PORT
10 DIMENSIONS OF PVPC-*-4046: BASIC VERSION “C” CONTROL
SHAFT TYPE “1” SHAFT TYPE “5”
SAE “BB” SPLINED
15 TEETH 16/32 PITCH
30˚ INVOLUTE SPLINE
INTERMEDIATE FLANGE SAE “A” FOR PFE-31
SAE “A” SPLINED
9 TEETH 16/32 PITCH
135 Nm MAX
OR-2325
SAE “B” SPLINED
13 TEETH 16/32 PITCH
250 Nm MAX
OR-3400
INTERMEDIATE FLANGE SAE “B” FOR PFE-41
PORTS DIMENSION
IN = Flange SAE 3000 1 1/2”
OUT = Flange SAE 6000 1”
D1, D2 = 1/2” BSPP
= Regulation screw for max displacement 2,2 cm
3
/rev per turn. Adjustable range 50% to 100% of max displacement.
In case of double pump the regulation screw is not always available, please contact our technical office.
Drawing shows pumps with clockwise rotation (option D): pumps with counterclockwise rotation (option S) will have inlet and outlet ports inverted
IN
OUT
Mass: 24 kg
DRAIN PORT
INLET PORT
OUTLET
PORT
DRAIN PORT
11 DIMENSIONS OF PVPC-*-5073 and PVPC-*-5090: BASIC VERSION “C” CONTROL
A160
SHAFT TYPE “1” SHAFT TYPE “5”
SAE “C” SPLINED
14 TEETH 12/24 PITCH
30˚ INVOLUTE SPLINE
INTERMEDIATE FLANGE SAE “A” FOR PFE-31
SAE “A” SPLINED
9 TEETH 16/32 PITCH
135 Nm MAX
OR-2325
SAE “B” SPLINED
13 TEETH 16/32 PITCH
330 Nm MAX
OR-3400
INTERMEDIATE FLANGE SAE “B” FOR PFE-41
SAE “C” SPLINED
14 TEETH 12/24 PITCH
440 Nm MAX
OR-3400
INTERMEDIATE FLANGE SAE “C” FOR PFE-51
PORTS DIMENSION
IN = Flange SAE 3000 2”
OUT = Flange SAE 6000 1 1/4”
D1, D2 = 3/4” BSPP
= Regulation screw for max displacement
3,2 cm
3
/rev per turn.
Adjustable range 50% to 100% of max
displacement.
In case of double pump the regulation screw
is not always available, please contact our
technical office.
Drawing show pumps with clockwise rotation (option D): pumps with counterclockwise rotation (option S) will have inlet and outlet ports inverted
IN
OUT
Mass: 33 kg
DRAIN PORT
INLET PORT
OUTLET
PORT
DRAIN PORT
12 DIMENSIONS OF PVPC: OTHER CONTROLS
E
VERSION CH
VERSIONS L, R
VERSION LW
= Regulation screw for max displacement. Adjustable range 50% to 100% of max displacement).
In case of double pump the regulation screw is not always available, please contact our technical office.
Drawing shows pumps with clockwise rotation (option D): pumps with counterclockwise rotation (option S) will have inlet and outlet ports inverted and also the consequently
position of the control groups
05/15
PVPC-*-5073
PVPC-*-5090
PVPC-*-3029
PVPC-*-4046
CH
L -R
LW
144
144
144
111
111
111
-
100
-
-
-
211
102
-
104
22
19,2
20
CH
L -R
LW
153
153
153
111
111
111
-
109
-
-
-
235
102
-
111
28
25,2
26
CH
L -R
LW
166
166
166
111
111
111
-
122
-
-
-
258
102
-
120
36,9
34,2
35
Pump type AVersion B C D E Mass (kg)
TIGHTENING TORQUE = 15 Nm max
