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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.


Specifications Rexroth Control Devices A4VSO-A4VSG