Electric Drives and Controls
Hydraulics
Linear Motion and Assembly Technologies
Pneumatics
Service
Control devices DR, DP, FR and DFR
RE 92 060/10.06 Replaces: 03.95
1/32
Technical data sheet
for the variable pumps A4VSO and A4VSG Series 1 and 3 open and closed circuits
Features
Contents Ordering code – Standard program A4VSO
2
– Control devices for the variable pumps A4VSO and A4VSG
Ordering code – Standard program A4VSG
3
– Control of pressure and flow
DR pressure control, swivel on one side
4
– Optional remote control
DRG remotely controlled pressure control
7
– Optional control for parallel operation
Unit dimensions DR / DRG
9
– Mechanical limitation of Vg min and Vg max
DP pressure control for parallel operation
12
Unit dimensions DP
16
DPF with flow control
19
Unit dimensions DPF
21
FR/FR1 flow control
22
Unit dimensions FR/FR1
25
FRG/FRG1 with remote pressure control
26
Unit dimensions FRG/FRG1
28
DFR/DFR1 pressure and flow control
29
Unit dimensions DFR/DFR1
31
General notes
32
– Special versions for mooring, over center operation and decompression via the pump are possible
Further information: Variable pump A4VSO
Size 40...1000
RE 92050
Variable pump A4VSG
Size 40...1000
RE 92100
2/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
Ordering code – Standard program A4VSO A4VS
O
02
03
01
/ 04
05
– 06
07
08
09
10
11
12
13
01 Fluid (for details see RE 92050) Axial piston unit 02
A4VS
Swash plate design, variable Type of operation
03
O
Pump, open circuit operation (see RE 92050) Size
04 Displacement Vg max [cm3]
40
71
125
180
250
355
500
750 1000
40
71
125
180
250
355
500
750 1000
Control and regulating devices Pressure control remotely controlled Press. control for parallel operation with flow control 05
Flow control
DR
DR DR
DRG
G
DP
DP DP
F
–
–
FR
–
–
DPF
–
–
–
FR
–
–
–
FRG
with remote pressure control
FR
FR no connection betw. XF to tank
FR
1
–
–
–
FR1
FRG no connection betw. XF to tank
FRG
1
–
–
–
FRG1
–
–
–
DFR
–
–
–
DFR1
–
–
–
10
Pressure and flow control no connection between XF to tank
G
–
DFR DFR
1
Series –
06
–
–
–
–
07 Direction of rotation 08 Seals 09 Shaft end 10 Mounting flange 11 Service port connections 12 Through drive 13 Filtration
available
– not available
Ordering code – standard program of A4VSG see page 3
For detailed information see: RE 92050 – A4VSO
–
30
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
3/32
Ordering code – Standard program A4VSG A4VS
G
02
03
01
/ 04
05
– 06
07
08
09
10
11
12
13
14
01 Fluid (for details see RE 92100) Axial piston unit 02
A4VS
Swash plate design, variable Type of operation
03
G
Pump closed circuit operation (see RE 92100) Size
04 Displacement Vg max [cm3]
40
71
125
180
250
355
500
750 1000
40
71
125
180
250
355
500
750 1000
Control and regulating devices Pressure control for one side of center DR 05
remotely controlled
DR
DR DRG
G
Pressure control for parallel operation DP for one side of center
DP
Series –
06
–
–
–
–
–
–
–
10 30
–
Direction of rotation 07
with view on shaft end
clockwise
R
(no bi-directional rotation possible)
counter clockwise
L
08 Seals 09 Shaft end 10 Mounting flange
For detailed information see: RE 92100 – A4VSG
11 Service port connections 12 Through drive 13 Valves 14 Filtration
available
in preparation
– not available
Ordering code – standard program of A4VSO see page 2
4/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
DR pressure control, swivel on one side The pressure control keeps the pressure in the pumps pressure outlet constant within the control range of the pump. Therefore, the pump only delivers as much fluid, as required by the actuators. The pressure can be steplessly set at the control valve. Recommended setting range 50...350 bar Standard setting 350 bar. If another setting is required, please state in clear text when ordering. Home position in pressureless condition: Vg max Min. and max. swivel angle limitation mechanically adjustable to 50 % of Vg max. The Vg min-stop is set so that a pressure level of 15...20 bar is reached in a closed pressure port B. The Vg max-stop is set to the nominal Vg max value. If another setting is required, please state in clear text when ordering. The pressure control is available in A4VSO and A4VSG however only for swivel on one side of center. On request also versions for mooring or over center operation are available. For fast decompression of the pressurized outlet, the pump can swivel momentarily over center and swallow some fluid. Remote adjustment of pressure control DRG see page 7, pressure control for parallel operation DP see page.12.
A4VSO - open circuit
50 qv min
1)
Pump direction of rotation
Swivel range 1)
Pressure port
clockwise
left hand
B
counter clockwise
right hand
B
compare swivel angle indicator
right left
15° 0° 15°
350
Setting range
Direction of flow S to B
Pressure deviation ≤ 3 bar
Operating pressure p [bar]
Static characteristic
qv max Flow
A4VSG - closed circuit Pressure control DR only for swivel on one side. No bi-directional rotation possible.
50 qv min
qv max Flow
1)
Pump direction of rotation
Swivel range 1)
Pressure port
clockwise
left hand
B
counter clockwise
right hand
B
compare swivel angle indicator
right left
15° 0° 15°
350
Setting range
Direction of flow A to B
Pressure deviation ≤ 3 bar
Operating pressure p [bar]
Static characteristic
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
5/32
DR pressure control, swivel on one side Dynamic characteristics The curves show measured average values. Conditions:
n = 1500/1800 rpm toil = 50° C Main line relief set at 400 bar
Load jump accomlished through sudden opening and closing of the pressure outlet with a relief valve as load valve, situated 1 m downstream of the pressure port on the axial piston unit.
400 Operating pressure [bar]
350 300 200 100 0
Displacement (swivel angle)
Vg max
Vg min Control time t Stroking time tSA (0...Vg max) De-stroking time tSE (Vg max...0) Size
tSA [s] at 20 bar
tSA [s] at 330 bar
tSE [s] Standby at 350 bar
40
approx. 0,12
approx. 0,08
0,02
71
approx. 0,20
approx. 0,10
0,03
125
approx. 0,30
approx. 0,20
0,04
180
approx. 0,30
approx. 0,20
0,05
250
approx. 0,40
approx. 0,30
0,06
355
approx. 0,40
approx. 0,30
0,08
500
approx. 0,50
approx. 0,30
0,10
750
approx. 1,00
approx. 0,60
0,15
1000
approx. 1,50
approx. 0,90
0,20
The stroking time tSA (Vg min → Vg max) can be steplessly adjusted, without influencing the de-stroking time tSE. Standard setting see table. If needed, these values can be reduced by a factor of 2...3 (please consult us).
6/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
Schematics DR Control device (shown in area with white background) valid for A4VSO and A4VSG
Size 40 and 71
Size 125...355
Example: A4VSO
Example: A4VSO
2
2
3
B1 B MB
B1 B MB
1.1
1.1 U S MS
U S MS
K1 K2 T R(L)
Size 125...355
Size 500...1000
Example: A4VSG
Example: A4VSO
M1 K1 K2 T R(L)
M2
2 A
B MB
2
MA
3
E
B1 B MB
3
1.2 U
M1
K2 K3 T R(L)
Ports M1, M2
M2
M1
1.1 U S MS
M2
K1 K2 T R(L)
Sub assemblies Gauging port control chamber pressure (Size 125...1000)
1 1.1 1.2
Pump with hydraulic control device A4VSO (see RE 92050) A4VSG (see RE 92100)
2
Pressure control valve
3
Sandwich plate (Size 125...1000)
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
7/32
DRG remotely controlled pressure control Function and execution as DR. A pressure relief valve (item 4) can be piped externally to port XD, but it is not included in the supply of the DRG control. A special version with a built on pressure relief valve is available upon request. The differential pressure at the pressure control valve (item 2) is set as standard to 20 bar, which results in a pilot flow out of XD of approx. 1,5 L/min. If a different setting (recommended range 20...50 bar) is required, please state in clear text when ordering. As a separate pressure relief valve we recommend : – DBD 6 (hydraulic) to RE 25402. – DBETR-SO 437 (electric) to RE 29166 The maximum line lenght should not exceed 2 m.
Notes to the setting of the remote pressure control: The overall� differential pressure. Example:
setting external pressure relief valve
330 bar
differential pressure at control valve
20 bar
external pressure relief valve
20
∆p Press. control valve
Setting range
max. 350
Pressure deviation ≤ 3 bar
Operating pressure p [bar]
results in control pressure level of 330 + 20 = 350 bar
Flow qv Function, description and stroking times of pressure control DR see page 4 and 5.
8/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
Schematics DRG Control device (shown in area with white background) valid for A4VSO and A4VSG
Size 40 and 71
Size 125...355
Example: A4VSO
Example: A4VSO
2
2
XD
4
XD
B1 B MB
B1 B MB
3
1.1
1.1 U S MS
U S MS
K1 K2 T R(L)
Size 125...355
Size 500...1000
Example: A4VSG
Example: A4VSO
M1 K1 K2 T R(L)
M2
4 2
A
B MB
4 XD
MA
E
XD
2
B1 B MB
3
M2 M1
3
1.1
1.2 U
M1 K2 K3 T R(L)
U S MS
M2
Ports
K1 K2 T R(L)
Sub assemblies
XD
Pilot pressure port for remote pressure relief valve
M1, M2
Gauging port control chamber pressure (Size125...1000)
1 1.1 1.2
Pump with hydraulic control device A4VSO (see RE 92050) A4VSG (see RE 92100)
2
Pressure control valvel
3
Sandwich plate (Size 125...1000)
4
External pressure relief valve (not included in supply)
4
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
Unit dimensions DR / DRG
9/32
Before ďŹ nalising your design, please request a certiďŹ ed installation drawing
Dimensions valid for A4VSO and A4VSG
Size 40 and 71
A7
Hydraulic control device
XD
A8
A2
Pressure control valve
B Pressure control valve mounting for clockwise rotation
Einschraubloch M33
A6
15 0 15
A1
LR
A5
A3
XD
A4
R(L) Schl.weite:30mm
B
Pressure control valve mounting for counter clockwise rotation
XD at counter clockwise rotation
Ports XD
max. tightening torque 1) Pilot pressure port for remote pressure relief valve
DIN 3852 M14x1,5; 12 deep; plugged at DR control
80 Nm
Unit dimensions
1)
Size
A1
A2
A3
A4
A5
A6
A7
A8
40
260
140
147
137
47
67
209
128
71
298
157
142
142
42
72
236
144
see general notes
Size 125...1000 see page 10 and 11
For detailed unit dimensions and technical data on the variable pumps see the technical data sheets A4VSO RE 92050 and A4VSG RE 92100
10/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
Unit dimensions DR / DRG
Before finalising your design, please request a certified installation drawing
Dimensions valid for A4VSO and A4VSG
Size 125...355 A7
Sandwich plate
Hydraulic control device
Pressure control valve
A8
A2
XD
B Pressure control valve mounting for clockwise rotation
M2
A5 Einschraubloch M33
A6
15° 0 15°
A1
LR
XD
R(L) Einschraubloch M14 (Form X)
B
XD at counter clockwise rotation
M1 Pressure control valve mounting for counter clockwise rotation
Ports XD
max. tightening torque 1) Pilot pressure port for remote pressure relief valve
M1; M2 Gauging port control chamber pressure
DIN 3852 M14x1,5; 12 deep; plugged at DR control
80 Nm
DIN 3852 M14x1,5; 12 deep; plugged (Size 125...180) M18x1,5; 12 deep; plugged (Size 250...355)
80 Nm 140 Nm
Unit dimensions Size
1)
A2
A5
A6
A7
A8
125/180 354
A1
191
41
71
305
172
250/355 424
238
41
71
367
208
see general notes
Size 40 and 71 see page 9; size 500...1000 see page 11
For detailed unit dimensions and technical data of the variable pumps see the technical data sheets A4VSO RE 92050 and A4VSG RE 92100
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
Unit dimensions DR / DRG
11/32
Before finalising your design, please request a certified installation drawing
Dimensions valid for A4VSO and A4VSG
Size 500...1000 A7
Sandwich plate
Hydraulic control device
Pressure control valve
A8
A2
XD
B M2 Pressure control valve mounting for clockwise rotation
A5 Einschraubloch M33
A6
LR
A1
15° 0 15°
XD
R(L)
XD at counter clockwise rotation
B M1 Pressure control valve mounting for counter clockwise rotation
Ports XD
max. tightening torque 1) Pilot pressure port for remote pressure relief valver
M1; M2 Gauging port control chamber pressure
DIN 3852 M14x1,5; 12 deep; plugged at DR control
80 Nm
DIN 3852 M18x1,5; 12 deep plugged
140 Nm
Unit dimensions
1)
Size
A1
A2
A5
A6
A7
A8
500
510
283
41
51
452
216
750
582
322
41
51
484
235
1000
622
350
41
51
550
269
see general notes
Size 40 and 71 see page 9; size 125...355 see page 10
For detailed unit dimensions and technical data of the variable pumps see the technical data sheets A4VSO RE 92050 and A4VSG RE 92100
12/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
DP pressure control for parallel operation Suitable for pressure control of several axial piston units A4VS in parallel operation (feeding into one common pressure header). An external pressure relief valve (item 4) is used to control several axial piston units simultaneously via their X-ports. The relevant throttle valve (item 5) ensures control of the required pressure increase, which is proportional to the actual pump displacement. Home position in pressureless condition: Vg max Setting of differential pressure for DP-control The standard setting of the differential pressure over control valve (item 2) plus throttle valve (item 5) amounts to 33 bar, with port XD unloaded to tank. The pilot oil flow out of port XD amounts to approx. 1,5 L/min. The pressure setting of the external relief valve plus the overall differential pressure over item 2 and 5 determine the total pressure control level. The pressure rise during the de-stroking of the pump is independent of the pressure relief valve setting and causes a slight swivel angle deviation of all commonly controlled pumps. Make sure that the lines between the ports XD and the pressure relief valve are as much as possible of the same lenght. Min. and max. swivel angle limitation mechanically adjustable to 50 % of Vg max. The Vg min-stop is set so that a pressure level of 15...20 bar is reached in a closed pressure port B. The Vg max-stop is set to the nominal Vg max value. If another setting is required, please state in clear text when ordering. The pressure relief valve (item 4) is not included in the supply of the DP control - please order separately. We recommend: DBD 6 (hydraulic) RE 25402 The max. number of commonly controlled pumps is limited by the flow capacity of the used pilot valve. If needed, it is possible to unload individual pumps to the differential pressure level through an unloading valve (item 6). In this case an additional check valve is necessary in the pump outlet (item 7) Both valves are not included in the supply of the DP control. On request it is possible to mount the unloading valve (item 6) directly onto the pump. This pressure control is available on the A4VSO and A4VSG, however only for swivel on one side of center. On request, it is also available for Mooring-or over center operation. For fast decompression of the pressurized outlet, the pump can then swivel momentarily over center and swallow some fluid. Stroking times like DR see page 5. Flow control is optionally available – DPF see page 19
Swivel angle α
±10%
100%
0
0
100% Flow qv
Swivel angle deviation ± 10% of ideal curve
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
13/32
DP pressure control for parallel operation A4VSO - open circuit Direction of flow S to B
1)
Pump direction of rotation
Swivel range 1)
Pressure port
clockwise
left hand
B
counter clockwise
right hand
B
compare swivel angle indicator
right left
15° 0° 15°
external pressure relief valve
Setting range
350 ∆p = 6,5±2 bar
Operating pressure p [bar]
Static characteristic
33 0
100% Flow qv ges
A4VSG - closed circuit Pressure control DP can swivel on one side of center only. No bi-directional rotation possible. Direction of flow A to B
33 0
100% Flow qv ges
Dynamic characteristic see DR control page 5
1)
Pump direction of rotation
Swivel range 1)
Pressure port
clockwise
left hand
B
counter clockwise
right hand
B
compare swivel angle indicator
right left
15° 0° 15°
external pressure relief valve
Setting range
350 ∆p = 6,5±2 bar
Operating pressure p [bar]
Static characteristic
14/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
Schematics DP Control device (shown in area with white background) valid for A4VSO and A4VSG
Size 40 and 71 Example: A4VSO Actuators
Mounting of further pumps
4 Mst
Mst
6
XD
6
XD
7
7
5
5 2
B1 B MB
1.1 U S MS
2
B1 B MB
1.1
K1 K2 T R(L)
U S MS
K1 K2 T R(L)
Size 125...355 Example: A4VSO Actuators
Mounting of further pumps
4 Mst
Mst
6
XD
6
XD
7
7 2 3
5 B1 B MB
5 B1 B MB
1.1 U S MS
M1 K1 K2 T R(L)
2 3
1.1 M2
Ports
U S MS
M1 K1 K2 T R(L)
Sub assemblies see page 15
XD
Pilot pressure port DP control
MSt
Gauging port pilot pressure
M1, M2
Gauging port control chamber pressure (Size 125...355)
M2
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
15/32
Schematics DP Control device (shown in area with white background) valid for A4VSO and A4VSG
Size 500...1000 Example: A4VSO Actuators
Mounting of further pumps
4 Mst
Mst
6
XD
6
XD
7
7
2
5
M2 M1
B1 B MB
2
5
M2 M1
B1 B MB
3
3
1.1
1.1 U S MS
U S MS
K1 K2 T R(L)
Ports
K1 K2 T R(L)
Sub assemblies
XD
Pilot pressure port DP control
MSt
Gauging port pilot pressure
M1, M2
Gauging port control chamber pressure
1 1.1 1.2
Pump with hydraulic control device A4VSO (see RE 92050) A4VSG (see RE 92100)
2
Control valve with pressure compensator
3
Sandwich plate (Size 125...1000)
4
Pressure relief valve (not included in supply)
5
Throttle valve
6
Unloading valve (not included in supply)
7
Check valve (not included in supply) required only in conjunction with unloading valve
16/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
Unit dimensions DP
Before finalising your design, please request a certified installation drawing
Dimensions valid for A4VSO and A4VSG
Size 40 and 71
Size 125...355
A6 to pump mounting face
A6 to pump mounting face
3 2
1.1 1.2
A7
A7
A2
2
1.1 1.2
A2
5
XD
5
XD
B
B
Control valve mounting for clockwise rotation
Control valve mounting for clockwise rotation
M2
XD
M14x1.50
A3
XD
M14x1.50
M14x1.50
R(L)
MSt B
Schl.weite: 30 m
LR
15° 0 15°
A5
A1
Einschraubloch M33
A4 at counter clockwise rotation
15° 0 15°
LR
A1
A5
M14x1.50
Einschraubloch M33
R(L)
MSt B M1
Control valve mounting for counter clockwise rotation
Control valve mounting for counter clockwise rotation
Sub assemblies see page 17 Ports
max. tightening torque 1)
XD
Pilot pressure port DP control
DIN 3852 M14x1,5; 12 deep
80 Nm
MSt
Gauging port pilot pressure
DIN 3853 S8 Form W closed
50 Nm
M1; M2 Gauging port control chamber pressure
DIN 3852 M14x1,5; 12 deep; plugged (Size 125 a. 180) 80 Nm M18x1,5; 12 deep; plugged (Size 250 a. 355) 140 Nm
Unit dimensions
1)
Size
A1
A2
A3
A4
A5
A6
A7
40
260
210
147
137
39
133
170
71
296
225
142
142
39
155
187
125/180
354
261
–
–
39
192
221
250/355 424
306
–
–
39
237
268
see general notes
For detailed unit dimensions and technical data of the variable pumps see the technical data sheets A4VSO RE 92050 and A4VSG RE 92100
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
Unit dimensions DP
17/32
Before finalising your design, please request a certified installation drawing
Dimensions valid for A4VSO and A4VSG
Size 500...1000 A6 to pump mounting face
5
XD
A2
MSt
A7
3 2
1.1 1.2
B Control valve mounting for clockwise rotation
LR
15° 0 15°
A5
A1
XD
M2
E i n s c h r a u b l och
M33
R(L)
Sub assemblies
MSt M1
B
Control valve mounting for counter clockwise rotation
1 1.1 1.2
Pump with hydraulic control device A4VSO (see RE 92050) A4VSG (see RE 92100)
2
Control valve with pressure compensator
3
Sandwich plate (Size 125...1000)
5
Throttle valve
Ports
max. tightening torque 1)
XD
Pilot pressure port DP control
DIN 3852 M14x1,5; 12 deep
80 Nm
MSt
Gauging port pilot pressure
DIN 3853 S8 Form W closed
50 Nm
DIN 3852 M18x1,5; 12 deep; plugged
140 Nm
M1; M2 Gauging port control chamber pressure
Unit dimensions
1)
Size
A1
A2
A5
A6
A7
500
510
353
39
268
313
750
582
392
39
290
352
1000
622
419
39
349
379
see general notes
For detailed unit dimensions and technical data of the variable pumps see the technical data sheets A4VSO RE 92050 and A4VSG RE 92100
18/32
Notes
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
19/32
DPF with flow control In addition to the pressure control function the flow from pumps to actuators may be varied via a differential pressure e.g. over an orifice. The pumps supply only the amount of flow as required by the actuator. The flow depends only on the size of cross section in the control orifice (item 9) mounted between pumps and actuator. Below the setting of the pressure control and within the control range of the pumps, the flow is virtually independent of the actual operating pressure. Description of the flow control see FR page 22. Function and technical data of the pressure control for parallel operation DP see page 12.
A4VSO - open circuit Direction of flow S to B
33 qv min
qv max Flow qv ges
1)
Pump direction of rotation
Swivel range 1)
Pressure port
clockwise
left hand
B
counter clockwise
right hand
B
compare swivel angle indicator
right left
15° 0° 15°
Setting range
350 ∆p = 6,5±2 bar
Operating pressure p [bar]
Static characteristic
20/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
Schematics DPF Size 125...355 A4VSO
9
Actuator
Mounting of further pumps
4 Mst XF
9.1 7
Mst
6
9.1
8
XD
7
2
5
2 3
B1 B MB
1.1
1.1 U S MS
M1 K1 K2 T R(L)
6
8
XD
5
3
B1 B MB
XF
U S MS
M2
Ports
M1 K1 K2 T R(L)
M2
Sub assemblies
XD
Pilot pressure port DP control
XF
Pilot pressure port flow control
1 1.1
Pump with hydraulic control device A4VSO (see RE 92050)
MSt
Gauging port pilot pressure DP control
2
Control valve with pressure compensator
M1, M2
Gauging port control chamber pressure (Size 125...355)
3
Sandwich plate
4
Pressure relief valve (not included in supply)
5
Throttle valve
6
Unloading valve (not included in supply)
7
Check valve (not included in supply) only required in conjunction with unloading valve
8
Flow control valve
9
External orifice (not included in supply)
9.1
is needed, when parallel stroking for flow control function is necessary (not included in supply)
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
Unit dimensions DPF
21/32
Before finalising your design, please request a certified installation drawing
Dimensions valid for A4VSO
Size 125...355 A11 to pump mounting face A9 to pump mounting face A7 to pump mounting face
5
XD
3
2
XF 8
A8
A10
A2
1.1
B M2
XD
Control valve mounting for clockwise rotation
MSt
A5 Einschraubloch M33
A6
15° 0 15°
LR
A1
XF
R(L)
XF at counter clockwise rotation
M1 B
Control valve mounting for counter clockwise rotation
Sub assemblies see page 20 Ports
max. tightening torque 1)
XD
Pilot pressure port DP control
DIN 3852 M14x1,5; 12 deep
80 Nm
XF
Pilot pressure port flow control
DIN 3852 M14x1,5; 12 deep
80 Nm
MSt
Gauging port pilot pressure DP control DIN 3853 S8 Form W closed
50 Nm
M1, M2 Gauging port control chamber pressure DIN 3852 M14x1,5; 12 deep; plugged (Size125 a. 180) 80 Nm M18x1,5; 12 deep; plugged (Size 250 a. 355) 140 Nm
Unit dimensions
1)
Size
A1
A2
A5
A6
A7
A8
A9
A10
A11
125
354
261
41
71
191,5
172
345
220,5
371
180
354
261
41
71
191,5
172
345
220,5
371
250
424
306
41
51
236,5
208
407
267,5
433
355
424
306
41
51
236,5
208
407
267,5
433
see general notes
For detailed unit dimensions and technical data of the variable pumps see the technical data sheets A4VSO RE 92050 or A4VSG RE 92100
22/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
FR/FR1 flow control The flow control matches the pump displacement with the actual flow requirements of the actuators. The pump flow depends only on the size of cross section in the orifice (item 4), mounted between pump and actuators. Within the control range of the pump, the flow is virtually independent of the actual load pressure (see max. flow deviation below). The cross section in the orifice determines the pump flow. The flow controller compares the pressure upstream of the orifice with the pressure after the orifice and keeps the pressure drop (differential pressure ∆p) over the orifice constant, thereby controlling the flow. An increase of differential pressure ∆p causes the pump to de-stroke (direction to Vg min), and a decrease in differential pressure ∆p results in a larger pump swivel angle (direction to Vg max), till the flow control valvespool is in balance again. ∆porifice = ppump – pactuator The standard ∆p setting at the flow control spool (item 2) amounts to 14 bar. If another setting (recommended range 14...25 bar) is required, please state in clear text when ordering. Higher values on request. The stand by pressure at low pressure standby (orifice closed and pilot port XF pressureless) is slightly higher than the ∆p-setting. With the control version FR1 there is no connection from XF to tank. Home position in pressureless condition: Vg max Min. and max. swivel angle limitation mechanically adjustable to 50 % of Vg max. The Vg min-stop is set so that a pressure level of 15...20 bar is reached in a closed pressure port B. The Vg max-stop is set to the nominal Vg max value. If another setting is required, please state in clear text when ordering.
A4VSO - open circuit Direction of flow S to B
1)
Pump direction of rotation
Swivel range 1)
Pressure port
clockwise
left hand
B
counter clockwise
right hand
B
compare swivel angle indicator
right left
15° 0° 15°
Operating pressure p
Static characteristic
Flow qv Max. flow deviation measured at drive speed of n = 1500 rpm
Flow qv
Static characteristic at variable drive speed
Drive speed n
Size
40
71
125
180
250
355
∆qv [L/min]
2
3
5
6
8
10
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
FR/FR1 flow control Dynamic characteristics The curves are measured average values. Flow jump stand by / qv max through unloading of X-port to tank.
400
Displacement Vg [%]
350 75
300
50
200
25
100 50
0
Load pessure [bar]
100
stand by
Control time t
Stroking timet tSA (0...Vg max)
De-stroking time tSE (Vg max...0)
Size
tSA [s] stand by...350 bar
tSE [s] 350 bar...stand by
tSE [s] 50 bar...stand by
40
approx. 0,1
0,02
0,050
71
approx. 0,2
0,03
0,075
125
approx. 0,3
0,04
0,100
180
approx. 0,4
0,05
0,120
250
approx. 0,4
0,06
0,150
355
approx. 0,5
0,07
0,180
The stroking time tSA (Vg min → Vg max) can be steplessly adjusted, without influencing the de-stroking time tSE. Standard setting see table. If needed, these values can be reduced by a factor of 2...3 (please consult us).
23/32
24/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
Schematics FR/FR1 Size 40 and 71
Size 125...355
A4VSO
A4VSO with FR1 closed
with FR1 closed
B XF
B XF
2
B1 B MB
3
B1 B MB
1.1
1.1 U S MS
2
4
4
U S MS
K1 K2 T R(L)
M1 K1 K2 T R(L)
Sub assemblies
Ports XF
Pilot pressure port ow control
M1, M2
Gauging port control chamber pressure (Size 125...355)
1 1.1
Pump with hydraulic control device A4VSO (see RE 92050)
2
Flow control valve
3
Sandwich plate (Size 125...355)
4
External oriďŹ ce (not included in supply)
M2
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
Unit dimensions FR/FR1
25/32
Before finalising your design, please request a certified installation drawing
Dimensions valid for A4VSO
Size 40 and 71
Size125...355 A7 to pump mounting face
A7 to pump mounting face
3
XF
1.1
2
A2
A8
A2
2
A8
1.1
XF
B
B Control valve mounting for clockwise rotation
Control valve mounting for clockwise rotation
M2 XF
M14x1.50
A3
XF M14x1.50
M14x1.50
A5 Einschraubloch M33
A6
15° 0 15°
LR
A1
A5 Einschraubloch M33
A6
15° 0 15°
LR
A1
M14x1.50
A4
R(L)
R(L)
B
Schl.weite: 30 m
B
M1 Control valve mounting for counter clockwise rotation
XF at counter clockwise rotation
XF at counter clockwise rotation
Control valve mounting for counter clockwise rotation
Sub assemblies see page 24 Ports XF
max. tightening torque 1) Pilot pressure port flow control
DIN 3852 M14x1,5; 12 deep
M1, M2 Gauging port control chamber pressure
80 Nm
DIN 3852 M14x1,5; 12 deep; plugged (Size 125 a. 180) 80 Nm M18x1,5; 12 deep; plugged (Size 250 a. 355) 140 Nm
Unit dimensions
1)
Size
A1
A2
A3
A4
A5
A6
A7
A8
40
260
140
147
137
47
67
209
128
71
298
157
142
142
42
72
236
144
125/180
354
191
–
–
41
71
305
172
250/355
424
238
–
–
41
71
367
208
see general notes
For detailed unit dimensions and technical data of the variable pumps see the technical data sheets A4VSO RE 92050 or A4VSG RE 92100
26/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
FRG/FRG1 with remote pressure control The pressure/flow control FRG is a combination of FR (FR1) and DRG. The pressure control overrides the flow control. The pressure control level can be remotely set with a separate pressure relief valve (item 4). Function and technical data of the remotely adjustable pressure control see page 7. Function and technical data of flow control FR see page 22 and 23. With the control version FRG1 there is no connection from XF to tank.
A4VSO - open circuit Direction of flow S to B
350
1)
20 Flow qv
Pump direction of Swivel range 1) rotation
Pressure port
clockwise
left hand
B
counter clockwise
right hand
B
compare swivel angle indicator
right left
15° 0° 15°
Operating pressure p [bar]
Characteristic
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
27/32
Schematics FRG/FRG1 Size 40 and 71
Size 125...355
A4VSO
A4VSO
with FRG1 closed
B
XF
XD
5
4
6
XD
5
3
B1 B MB
B1 B MB
1.1
1.1 U S MS
with FRG1 closed
2
XF
2 4
B
U S MS
K1 K2 T R(L)
M1 K1 K2 T R(L)
M2
Sub assemblies
Ports Pilot pressure port ow control
1 1.1
Pump with hydraulic control device A4VSO (see RE 92050)
Gauging port control chamber pressure (Size 125...355)
2
Flow control valve
3
Sandwich plate (Size 125...1000)
4
External oriďŹ ce (not included in supply)
5
Pressure control valve
6
External pressure relief valve (not included in supply)
XD
Pilot pressure port remote pressure control
XF M1, M2
6
28/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
Unit dimensions FRG/FRG1
Before finalising your design, please request a certified installation drawing
Dimensions valid for A4VSO
Size 40 and 71
Size 125...355 A10 to pump mounting face A9 to pump mounting face A7 to pump mounting face
A10 to pump mounting face A9 to pump mounting face A7 to pump mounting face
5
XD
3 5 XD
XF
A2
A8
A2
2
2
B
B Control valve mounting for clockwise rotation
M2
XD
Control valve mounting for clockwise rotation
XD
XF
A5 A6
15° 0 15°
LR
A1
A5 A6
R(L)
Einschraubloch M33
A4
15° 0 15°
LR
A3
XF
Einschraubloch M33
Schl.weite: 30 mm
A8
1.1
1.1
A1
XF
R(L)
XD and XF at counter clockwise rotation
Schl.weite: 30 mm
B
M1 B
Control valve mounting for counter clockwise rotation
XD and XF at counter clockwise rotation
Control valve mounting for counter clockwise rotation
Sub assemblies see page 27 Ports
max. tightening torque 1)
XD
Pilot pressure port remote pressure control
DIN 3852 M14x1,5; 12 deep
80 Nm
XF
Pilot pressure port flow control
DIN 3852 M14x1,5; 12 deep
80 Nm
M1, M2 Gauging port control chamber pressure
DIN 3852 M14x1,5; 12 deep; plugged (Size 125 a. 180) 80 Nm M18x1,5; 12 deep; plugged (Size 250 a. 355) 140 Nm
Unit dimensions
1)
Size
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
40
260
140
147
137
47
67
209
128
249
275
71
298
157
142
142
42
72
236
144
276
302
125/180
354
191
–
–
41
71
305
172
345
371
250/355
424
238
–
–
41
71
367
208
407
433
see general notes
For detailed unit dimensions and technical data of the variable pumps see the technical data sheets A4VSO RE 92050 or A4VSG RE 92100
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
29/32
DFR/DFR1 pressure and flow control Pressure and flow control DFR is a combination of pressure control DR and flow control FR. Function and technical data see DR (page 4) and FR (page 22). With the control version DFR1 there is no connection from XF to tank. Min. and max. swivel angle limitation mechanically adjustable to 50 % of Vg max . Home position in pressureless condition: Vg max Min. and max. swivel angle limitation mechanically adjustable to 50 % of Vg max. The Vg min-stop is set so that a pressure level of 15...20 bar is reached in a closed pressure port B The Vg max-stop is set to the nominal Vg max value. If another setting is required, please state in clear text when ordering.
A4VSO - open circuit Direction of flow S to B
1)
Flow qv
Pump direction of rotation
Swivel range 1) Pressure port
clockwise
left hand
B
counter clockwise
right hand
B
compare swivel angle indicator
right left
15° 0° 15°
Operating pressure p
Static characteristic
30/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
Schematics DFR/DFR1 Size 40 and 71
Size 125...355
A4VSO
A4VSO
with DFR1 closed
B
with DFR1 closed
B
XF
XF
2
2 4
5
B1 B MB
4
5
B1 B MB
3
1.1 U S MS
1.1
K1 K2 T R(L)
Ports
U S MS
M1 K1 K2 T R(L)
Sub assemblies
XF
Pilot pressure port ow control
M1, M2
Gauging port control chamber pressure (Size 125...355)
1 1.1
Pump with hydraulic control device A4VSO (see RE 92050)
2
Flow control valve
3
Sandwich plate (Size 125...1000)
4
External oriďŹ ce (not included in supply)
5
Pressure control valve
M2
RE 92 060/10.06 | DR, DP, FR and DFR
Bosch Rexroth AG
Unit dimensions DFR/DFR1
31/32
Before finalising your design, please request a certified installation drawing
Dimensions valid for A4VSO
Size 125...355
5
XF
1.1
3 5 XD
2 B
B Control valve mounting for clockwise rotation
Control valve mounting for clockwise B rotation
M2 M2
15° 0 15°
A5
XF
A A56
Einschraubloch M33
Einschraubloch M33
R(L)
XF at counter clockwise rotation
Schl.weite: 30 mm
B
R(L)
XF at counter clockwise rotation A6
15° 0 15°
LR LR
A1 A4
A1
A6
Einschraubloch M33
R(L)
XF XD
A3
A5
15° 0 15°
LR
A1
XF
Schl.weite: 30 mm
XF 2
A2
A8
2
XF
1.1
A2
A2
1.1
5
A8
A9 to pump mounting face A7 to pump mounting face A10 3 A9 A7
A9 to pump mounting face A7 to pump mounting face
A8
Size 40 and 71
M1 B Control valve mounting for
Control valve mounting for counter clockwise rotation
B clockwise rotation M1counter
Sub assemblies see page 30 Ports XF
max. tightening torque 1) Pilot pressure port flow control
DIN 3852 M14x1,5; 12 deep
M1, M2 Gauging port control chamber pressure
80 Nm
DIN 3852 M14x1,5; 12 deep; plugged (Size 125 a. 180) 80 Nm M18x1,5; 12 deep; plugged (Size 250 a. 355) 140 Nm
Unit dimensions
1)
Size
A1
A2
A3
A4
A5
A6
A7
A8
A9
40
260
140
147
137
47
67
249
128
275
71
296
157
142
142
42
72
276
144
302
125/180
354
191
–
–
41
71
345
172
371
250/355
424
238
–
–
41
71
407
208
433
See general notes
For detailed unit dimensions and technical data of the variable pumps see the technical data sheets A4VSO RE 92050 or A4VSG RE 92100
32/32
Bosch Rexroth AG
DR, DP, FR and DFR | RE 92 060/10.06
General notes – The control devices DR, DP, FR and DFR are intended to be used together with the pump A4VSO in open circuit applications, and the control devices DR and DP together with the pump A4VSG in closed circuit applications. – Project planning, assembly, and commissioning of the pump require the involvement of qualified personnel. – The service line ports and function ports are only designed to accommodate hydraulic lines. – Tightening torques: The tightening torques specified in this data sheet are maximum values and must not be exceeded (maximum values for screw thread). Manufacturer´s instruction for the max. permissible tightening torques of the used fittings must be observed! For DIN 13 fixing screws we recommend checking the tightening torque individually according to VDI 2230 Edition 2003. – During and shortly after operation of a pump the housing can be extremly hot, avoid being burned! Take suitable safety precautions, e.g. wear protective clothing. – The data and information contained herein must be adhered to.
Bosch Rexroth AG Hydraulics Product Segment Axial Piston Units Plant Horb An den Kelterwiesen 14 72160 Horb a.N., Germany Telephone +49 (0) 74 51 - 92 0 Facsimile +49 (0) 74 51 - 82 21 info.brm-ak@boschrexroth.de www.boschrexroth.com/axial-piston-pumps
© This document, as well as the data, specifications and other informations set forth in it, are the exclusive property of Bosch Rexroth AG. Without their consent it may not be reproduced or given to third parties. The data specified above only serve to describe the product. No statements 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 judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging. Subject to change.