Variable displacement pump A7VOhydravlica.com.ua/files/re92203.pdf · RE 92 203/05.99 Brueninghaus...

A7VO 1/24

Contents

Features 1

Ordering code / standard range / preferred range 2, 3

Technical data 4, 5, 6

Unit dimensions Size 250 7

" " 355 8

" " 500 9

" " 1000 10

Power controller LRD 11

with integrated pressure control LRD 12

with remote-controlled pressure control LRG 13

with hydraulic stroke limitation Vgmax LRDH 14

with hydraulic stroke limitation Vgmin LRDN 15

Pressure controller DR 16

with remote-controlled pressure control DRG 17

Hydraulic control HDD 18

with pressure control HDD and HDG 19

Hydraulic control with electrical proportional valve EPD 20

with pressure control EPD and EPG 21

Visual and electrical swivel angle indication 22

Preferred types 23

RE 92 203/05.99

Replaces: 03.92

Variable displacement pump A7VOopen-loop circuit, axial piston – bent axis design

Size 250-1000Series 6Nominal pressure 350 barPeak pressure 400 bar

A7VO...LRDH

Features

– Variable-displacement axial piston pump with bent axis forhydrostatic drives in open circuits

– Flow is proportional to drive speed and displacement. It can beinfinitely varied by adjustment of the bent axis.

– Axial tapered piston rotary group of bent axis design

– Infinitely variable displacement

– Compact, robust bearing system designed for long service life

– Optional long-life bearings

– Good performance-to-weight ratio

– Low flywheel effect

– Large range of control devices

– Pressure control supplied as standard

– External controller adjustment during operation

– Optional visual or electrical swivel angle indication

– Can be installed in any position

– HF operation possible with reduced specifications

– Further information:

Variable displacement pump A7VO RE 92 202Sizes 55 - 160

RE 92 203/05.99

RE 92 203/05.99

Brueninghaus Hydromatik 2 /24 A7VO

Ordering code

= Preferred range (short delivery times)

(Preferred types see page 23)

FluidMineral oil (no short code)HF fluids (only with shaft bearing "L") E

Axial piston unitBent axis design, variableNominal pressure 350 bar, peak pressure 400 bar A7V

Drive shaft bearings 250 355 500 1000Mechanical bearings (no short code) ● ● ● –Long-life bearings ● ● ● ● L

Operating modePump, open-loop circuit O

SizeDisplacement Vg max ( cm3) 55-160 see RE 92 202 250 355 500 1000

Control devicesPower controller LR D ● ● ● ❍ LRD

LR G ● ● ● ❍ LRGLR D H1 ● ● ● ❍ LRDH1LR G H1 ● ● ● ❍ LRGH1LR D H2 ● ● ● ❍ LRDH2LR G H2 ● ● ● ❍ LRGH2LR D H3 ● ● ● ❍ LRDH3LR G H3 ● ● ● ❍ LRGH3LR D N1 ● ● ● ❍ LRDN1LR G N1 ● ● ● ❍ LRGN1LR D N2 ● ● ● ❍ LRDN2LR G N2 ● ● ● ❍ LRGN2LR D N3 ● ● ● ❍ LRDN3LR G N3 ● ● ● ❍ LRGN3

Integrated pressure control (invariable) Hydraulic stroke control, basic setting Vgmin

Remote-controlled pressure control 1 = ∆p 10bar; 2 = ∆p 25bar; 3 = ∆p 35barHydraulic stroke limitation, basic setting Vgmax

Pressure controller DR ● ● ● ❍ DRDR G ● ● ● ❍ DRG

Remote-controlled pressure control

Hydraulic control, dependent on pilot pressure HD 1 D ● ● ● ● HD1DHD 1 G ● ● ● ● HD1GHD 2 D ● ● ● ● HD2DHD 2 G ● ● ● ● HD2GHD 3 D ● ● ● ● HD3DHD 3 G ● ● ● ● HD3G

Pilot pressure increase ∆p = 10 bar (1); Remote-controlled pressure control25 bar (2); Integrated pressure control (invariable)35 bar (3)

Hydraulic control EP 1 D ● ● ● ❍ EP1Dwith electrical proportional valve EP 1 G ● ● ● ❍ EP1G

EP 2 D ● ● ● ❍ EP2DEP 2 G ● ● ● ❍ EP2G

Control voltage 12 V (1) Remote-controlled pressure controlControl voltage 24 V (2) Integrated pressure control (invariable)

}

}

RE 92 203/05.99

A7VO 3/24 Brueninghaus Hydromatik

Ordering code

● = available❍ = in preparation– = not available

A7V O / 63 – V

}

}

Fluid

Axial piston unit

Drive shaft bearings

Operating mode

Size

Control devices

Series63

Direction of rotationViewed on shaft end clockwise R

anticlockwise L

SealsFKM (fluoride rubber to DIN ISO 1629) V

Shaft endsSplined shaft DIN 5480 ZParallel with key DIN 6885 P

Mounting flange 250 355 500 1000ISO - 4 hole ● – – – BISO - 8 hole – ● ● ● H

Connection for service lines 250 355 500 1000Pressure ports A(B) SAE at rearSuction port S (metric thread) ● ● ● ● 01

Pressure ports A(B) SAE on opposite sidesSuction port S (metric thread) ● ● ● ❍ 02

Swivel angle indication 250 355 500 1000Without swivel angle indication (no short code) ● ● ● –With visual swivel angle indication ● ● ● ● VWith electrical swivel angle indication ● ● ● ● E

RE 92 203/05.99


Hydraulic fluidBefore starting a project, please obtain detailed information on thechoice of hydraulic fluids and application conditions from ourcatalogue data sheets RE 90220 (Mineral oil), RE 90221 (Environ-ment-friendly hydraulic fluids) and RE 90223 (HF fluids).Reduced operating data may have to be considered when using HFfluids and ecologically acceptable fluids. Please consult us. (whenordering, please print the full name of the hydraulic fluid used inyour application)

Operating viscosity rangeWe recommend that you choose an operating viscosity (at operatingtemperature) in the optimal range for both the efficiency andservice life of the unit, i.e.:

(based on the tank temperature in the case of open circuitapplications).

Viscosity limitsThe limiting values for viscosity are as follows:ν min = 10 mm2/s

momentary, at max. permissible leakage oil temperature 90oC.ν max = 1000 mm2/s

momentary, during cold starting.

Temperature range (see selection diagram)tmin = -25oCtmax = 90oCNote that the max. fluid temperature must not be exceeded at anypoint (e.g. around the bearings).

Filtration of hydraulic fluidThe finer the filtration, the higher the degree of purity achieved for thehydraulic fluid and the longer the service life of the axial piston unit.To ensure correct functioning of the axial piston unit, the followingminimum purity grade for the hydraulic fluid is required:

9 to NAS 163818/15 to ISO/DIS 4406.

If the grades specified above cannot be maintained, please consult us.

ν opt. = optimal operating viscosity 16 ... 36 mm2/s

Notes on the selection of hydraulic fluidIn order to select the correct hydraulic oil, it is necessary to knowthe operating temperature (open circuit: tank temperature) as afunction of the ambient temperature.The hydraulic oil should be selected so that in theoperating temperature range the operating viscosity lies within theoptimal range (ν opt.) – see shaded area of the selection graph. Werecommend you to select the higher viscosity grade in each case.Example:at an ambient temperature of X°C, an operating temperature (opencircuit: tank temperature) of 60°C is established.In the optimal viscosity range ( νopt., shaded area) , this temperaturecorresponds to viscosity grades VG 46 or VG 68. Select VG 68.Important:The leakage oil temperature is influenced by pressure and speedand is typically higher than the tank temperature. However, thetemperature must not exceed the maximum of 90°C at any point inthe system.If it is not possible to comply with the above conditions on accountof extreme operating parameters or high ambient temperatures, werecommend that the housing be flushed via port U.

Long-life bearings (L)

(For long service life and when using HF fluids)The external dimensions of the axial piston pump are identical withthose of the version with mechanical bearings. Long-life bedaringsmay be retrofitted in existing units. It is recommended that thebearings be flushed via port U.

Flushing

Quantities (recommended)Size 250 355 500 1000qRinse (L/min) 10 16 20 25

Selection chart

Technical data

t min = - 25° C Druckflüssigkeitstemperaturbereich t max = + 90° C

- 25° - 10° 10°

20°

30° 50° 70° 90°

- 20° 0° 40° 60° 80° 100°1000

36

16

Temperaturt (° C)

10

1000600400

200

1008060

40

20

15

10

Visk

ositä

t υ (m

m2

/ s)

υ op

t

VG 22

VG 32

VG 46VG 68VG 100

Hydraulic fluide range

Visc

osity

ν in

mm

2 /s

Temperaturet in °C

RE 92 203/05.99


(Valid for mineral oil operation; for water-based fluids see RE 90223,for ecologically acceptable fluids see RE 90221)

Input operating pressure range

Absolute pressure at port S (suction port)pabs min 0.8 barpabs max 8 bar

The input pressure determines the starting point of the LR powercharacteristic as well as of the LR.H and LR.N control characteristic.

Start of control is set by the manufacturer at p abs. =1 bar.

An increase of input pressure causes an increase of control start andtherefore produces a parallel shift in the control characteristic.

Detailed informations of the change on request.

Output operating pressure rangePressure at port A or B

Nominal pressure pN 350 bar

Peak pressure pmax 400 bar

(Pressure data to DIN 24312)

We recommend the use of a splined shaft (DIN 5480) for oscillatingloads over 315 bar.

Direction of flow

Clockwise S to BAnticlockwise S to A

Symbol(without control)

Ports

B (A) Service linesS Suction portR Case drain fluidU Flushing port (For flushing the bearings)

Case drain pressureThe lower the speed and case drain pressure, the longer the servicelife of the shaft seal.

FKM (fluoride rubber) shaft seal

The values specified in the diagram are permissible limit values forintermittent pressure loads acting on the shaft seal and should notbe exceeded.

The service life of the shaft seal is reduced when subjected to purelystationary pressure loads close to the max. permissible case drainpressure.

Special operating conditions may make it necessary to restrict thesevalues.

Important:

- Max. permissible speeds of variable displacement pump (see tableof values on page 6)

- Max. permissible housing pressure abs. max _________________ 4 bar

- The housing pressure determines the starting point of the HD andDR control characteristic.

Start of control is set by the manufacturer at p abs. =1 bar.

An increase of the housing pressure causes an increase of controlstart and therefore produces a parallel shift in the control characteristic.

Detailed informations of the change on request.

- The housing pressure must be equal or greater than the externalpressure on the shaft seal.

Installation positionCan be installed in any position. The pump housing must be filledwith hydraulic fluid before commissioning and must remain filledduring operation. The drain line must be routed so that the housingis not drained when the pump is stationary, i.e. the end of the drainline must be below the minimum oil level in the tank.

The highest drain port R must always be used for filling the housingand for connecting the drain line. R1 or R2 must be connected.

3

2,5

2

1,5

10 1000 2000

3,5

Drehzahl n [min-1]

zul.

Druc

k pab

s. m

ax. [

bar]

500 1500 2500

4

NG 1000

NG 500

NG 250

NG 355

1,2

1,1

1,0

0,9

0,80,6 0,7 0,8 0,9

1,61,41,21,0

0,8

1,0

1,81,25

Eing

angs

druc

k pa

bs (b

ar)

Dreh

zahl

n n0m

ax1

Verdrängungsvolumen V g

V gmax

Determination of input pressure p abs at suction port S orreduction of displacement with increasing speed.

Technical data

R

B (A)

S U

Displacement

Spee

d

Inpu

t pre

ssur

e p ab

s (ba

r)

Perm

. pre

ssur

e p ab

s. m

ax. [

bar]

Speed n [rpm]

Size 1000

Size 500

Size 250

Size 335

RE 92 203/05.99


Table of values (theoretical values, regardless of ηmh and ηv; approximate values)

Size Size 250 355 500 1000

Displacement Vg max1) cm3 250 355 500 1000

Vg min1) cm3 0 0 0 0

Max. speed 2) at Vg max no max1 rpm 1500 1320 1200 950Max. permissible speed (speed limit) when Vg < Vg max

or with higher input pressure pabs at suction port S(see diagram on page 5) no max perm. rpm 1800 1600 1500 1200Max. flow 3) at no max1 (Vg max) qvo max1 L /min 364 455 582 922Max. power(∆p = 350 bar) at qvo max1 Po max1 kW 212 265 340 538Permissible torque in continuous operationat Vg max (∆p = 350 bar) Tmax Nm 1391 1976 2783 5565Moment of inertiaabout the drive axis J kgm2 0.061 0.102 0.178 0.55Weight, approx. m kg 102 173 234 450Capacity L 3 5 7Permissible loading of drive shaft: 4)Max. permissible axial force (at pA,B=1bar) + F ax max N 4000 5000 6250 10000

- F ax max N 1200 1500 1900 2600Max. permissible radial force (at pA,B=1bar) 5) F q max N 1200 1500 1900 2600

Flow qv =

Drive torque T =

Drive power P =

1.59 • Vg • ∆p100 • η mh

Vg • n • ηv

1000

2 π • T • n T • n qv • ∆p

60000 9549 600 • ηt

1) Standard setting for limitation of the swivel angle. Please specifyin plain text if a different setting is required.Setting ranges Vgmax: Vgmax to 0.8 Vgmax

Vgmin: 0 to 0.2 Vgmax

2) The values apply for an absolute pressure (pabs) of 1 bar3) Including 3% flow losses4) When stationary or during pressureless circulation of the axial

piston unit5) Please consult us in cases with combined loads (axial and radial

forces) and higher operating pressures (higher values arepermissible in such cases)

Forces

Vg = Geometric displacement [cm3] per revolution∆p = Differential pressure [bar]n = Speed [rpm]ηv = Volumetric efficiencyηmh = Mechanical-hydraulic efficiencyηt = Total efficiency (ηt = ηv • ηmh)

Technical data

Determination of size

[L/min]

[Nm]

[kW]= =

+ Fax - Fax

Fq

X/2 X/2X

RE 92 203/05.99


66,7

31,8

ø32

105

105

13°15

´ø45

M16

ø224

h8

36

25982108

5849

276287

385*82

22

44 57

max

. 275

*16

1*

R1U

R2 BM14, 19 tief

246

M16

ø22

=360°4x90°

30°ø250

ø280

45°45°

246

R25

Y

Z

106,4

61,9

ø75

287

44

SM16, 24 tief

73130

MB

YSB

11273

130

MA

S A

112

Vg min

89

Vg max

344

120

bei hintenliegenden Anschlüssen (01)

Before finalising your design, please request certified assembly drawing.Subject to change without notice.

Splined shaftW50x2x30x24x9gDIN 5480

Variation VariationShaft end P Ports A (B) and S at rear (01)Key AS 14 x 9 x 80 View Z, clockwise rotation View Z, anticlockwise rotationDIN 6885

(not including control)Ports A (B) and S on opposite sides 02Clockwise rotation

PortsA,B Pressure ports SAE 1 1/4" (High-pressure series)S Suction port SAE 3" (Standard pressure series)U Flushing port M 14 x 1.5 (Plugged by manufacturer)R1,2 Case drain port M 22 x 1.5 (R2 plugged by manufacturer)MA, MB Measuring ports (operating pressure) M 14 x 1.5 (Plugged by manufacturer)

View Z, anticlockwise rotationView Z, clockwise rotationView Y

Unit dimensions, size 250

* See control devices

6860

MB

SB

73152119

31,8 61,9

M14, 19 tief

66,7

ø32

ø75

106,

4

M14, 19 tief M16, 24 tief

6860

MA

S A

73152 119

31,861,9

66,7

ø32

ø75

106,

4

M14, 19 tiefM16, 24 tief

ø49,

6

M16

ø50 k

6

36

13282

53,5

M16, 24 deep M16, 24 deepM14, 19 deep M14, 19 deep

With ports at rear (01)

M14,19 deep

RE 92 203/05.99


79,4

36,5

ø40

128

12813°15

´ø55

M20

ø280

h8

42

281495132

8271

310315

432*95

23,5

49

103

max

. 300

*18

1*

R1U

R2 BM16, 21 tief

335

M16

=360°

8x45°

45°

ø360

ø320

ø18

335

Y

Z

22°30´

38764

Vg min

Vg max

bei hintenliegenden Anschlüssen (01)

166

82

150

MB

SB

135

82

150

MA

S A

135

120,7

69,9

ø90323

49

S

M16, 24 tief

Y



PortsA,B Pressure ports SAE 1 1/2" (High-pressure series)S Suction port SAE 3 1/2" (Standard pressure series)U Flushing port M 14 x 1.5 (Plugged by manufacturer)R1,2 Case drain port M 33 x 2 (R2 plugged by manufacturer)MA, MB Measuring ports (operating pressure) M 14 x 1.5 (Plugged by manufacturer)

View Z, clockwise rotation View Z, anticlockwise rotationView Y



ø59,

6

M20

ø60 m

6

42

155105

82 75

MB

SB

171143

36,5 69,9

79,4

ø40

ø90

120,

7


8275

MA

S A

171 143

36,569,9

79,4

ø40

ø90

120,

7


64



M16,21 deep

M16, 21 deep

M16, 21 deepM16, 24 deepM16, 24 deepM16, 21 deep


RE 92 203/05.99


130,2

77,8

ø100370

55

S

M16, 21 tief

95

164

MB

SB

149

95

164

MA

S A

149

g

Y

79,4

36,5

ø40

141

141

13°15

´

ø62,

7

M20

ø315

h8

42

3014

110130

8067

357370

492*110

27,5

55

109

max

. 325

*20

0

R1U

R2 BM16, 21 tief

Z

196*

375

=360°

8x45°

33°45´

ø400

ø360

ø22

375

Y

22°30´24

M20

Vg min

Vg max

186

439bei hintenliegenden Anschlüssen (01)

71



PortsA,B Pressure ports SAE 1 1/2" (High-pressure series)S Suction port SAE 4" (Standard pressure series)U Flushing port M 18 x 1.5 (Plugged by manufacturer)R1,2 Case drain port M 33 x 2 (R2 plugged by manufacturer)MA, MB Measuring ports (operating pressure) M 14 x 1.5 (Plugged by manufacturer)




MB

SB

36,5 77,8

79,4

ø40

ø100

130,

2


ø69,

6

M20

ø70 m

6

42

155

105

95

185157

82

MA

S A

36,577,8

79,4

ø40

ø100

130,

2


95

185 157

82

74,5



M16, 21 deep

M16, 21 deep

M16, 21 deep M16, 21 deep M16, 21 deep M16, 21 deep


RE 92 203/05.99


133

461

SB

MA

44,5 92,1

96,8

ø50

ø125

152,

4


122221225

103

S A

MA

44,592,1

96,8

ø50

ø125

152,

4


122221 225

103

Y

465

=360°

8x45°45°

ø500

ø450

ø22

465

Y

22°30´

M24

183

18313

°15´

ø82,

6

M24

ø400

h8

50

3514147155

105

91

617*147

41,5

88

max

. 395

*25

5

R1U

R2

Z

Vg min

231

555

Vg max

VariationShaft end PKey AS 25 x 14 x 125DIN 6885

(not including control)Ports A (B) and S at rear 01Anticlockwise rotation





ø89,

6

M24

ø90 m

6

50

180130

95

PortsA,B Pressure ports SAE 2" (High-pressure series)S Suction port SAE 5" (Standard pressure series)U Flushing port M 18 x 1.5 (Plugged by manufacturer)R1,2 Case drain port M 42 x 2 (R2 plugged by manufacturer)MA, MB Measuring ports (operating pressure) M 14 x 1.5 (Plugged by manufacturer)


M20,24 deep

M16,23 deep

M16, 21 deep

M16,23 deep

M20,24 deep

RE 92 203/05.99


Integrated pressure control is supplied as standard andoverrides the power control. Description see page 12.

Power control

The power controller permits optimum utilization of the drive powerby matching it precisely with the hyperbolic characteristic.

The power controller adjusts the pump displacement in accordancewith the operating pressure so that a given drive power is notexceeded at constant drive speed.

Operating pressure p • displacement Vg =

constant drive power

The operating pressure acts on a lever mechanism via the measuringspool in the positioning piston. It is offset by the externally set springforce which acts on the pilot valve and determines the power setting.

The pump is maintained at the maximum displacement Vgmax, sincethe operating pressure is also present on the small side of the piston.

When the operating pressure exceeds the set spring force, the pilotvalve is actuated via the lever mechanism, the larger piston area issupplied with positioning pressure and the pump swivels towardsthe smaller displacement Vgmin. This in turn reduces the effectivemoment on the lever mechanism and the operating pressure canincrease in the same ratio by which the output flow is reduced(p • Vg = constant).

Power control can be set to start between 50 and 300 bar.

When ordering, please specify in plain text:

Drive power P (kW)

Drive speed n (rpm)

Max. flow qv max (L/min)

LRD Power controller, with integrated pressure control, initial setting Vgmax

Power characteristics in kW

qVmax

Betriebsdruck p [bar]

Volu

men

stro

m

50 300 350qV0

EinstellbereichLeistungsregler

Einstellbereichintegr. Druckregelung

Volu

men

stro

m (F

örde

rstr

om)

q v [L

/min

] bei

150

0 m

in-1


200160

1321109075

55453730

0

100

200

300

375

350300250200150100500

250200

160110

1329075

4555

37

0

100

300

400

532

Volu

men

stro

m (F

örde

rstr

om)

q v [L

/min

] bei

150

0 m

in-1

200

500

350300

250200150100500


0


Volu

men

stro

m (F

örde

rstr

om)

q v [L

/min

] bei

100

0 m

in-1

160132

1109075

5537

200250

100

200

300

400

500

0 350300

25020015010050

Circuit diagram and unit dimensions, see page 12.

Size 250

Size 355

Size 500

Characteristic

Setting range forpower control

Setting range for integratedpressure control

Operating pressure p [bar]

Flow




Flow

(disp

lace

men

t)qv

[L/m

in] a

t 150

0 rp

mFl

ow (d

ispla

cem

ent)

qv [L

/min

] at 1

500

rpm

Flow

(disp

lace

men

t)qv

[L/m

in] a

t 100

0 rp

m

RE 92 203/05.99


Pressure control overrides power control.

It protects the pump against excessive pressure and damage.

The pressure control valve is integrated into the port plate and canbe set externally.

The pump adjusts in direction of minimum displacement uponreaching the set required pressure.

Pressure control can be set to start between 50 and 350 bar.

Please specify the pressure control setting (bar) in plaintext when ordering.The pressure relief valve included in the system to safeguard themaximum pressure must have a cracking pressure at least 20 barabove the control setting.

Unit dimensionsGeneral dimensions on pages 7-9.

Clockwise rotation

Anticlockwise rotation

Unit dimensionsSize A1 A2 A3 A4 A5

250 385 170 248 297 227355 430 175 279 333 257500 490 200 306 382 284

qVmax

Volu

men

stro

m q

V

350qVmin



∆p max. 10 bar

50

LRD Integrated pressure control, initial setting Vgmax

Circuit diagram, power controller with integrated pressure control

Power control

Pressure control

MB R1 R2B

U

M

S

Vgmin Vgmax

M

M

bis Anflanschfläche

A1

A 2A 3A 5

A4

M


Before finalising your design, please request certified assembly drawing. Subject to change without notice.

Power control

Power control Pressurecontrol

PortsM Measuring ports (Positioning pressure) M 14 x 1.5 (plugged)

Characteristic

Pressurecontrol


A1

A 2A 3A 5

A4

M

bis AnflanschflächeOperating pressure p [bar]

Flow

qV


To mounting flange face




RE 92 203/05.99


Unit dimensions

General dimensions on pages 7-9.

The remote-controlled pressure control adjusts the pump in directionof minimum displacement Vgmin upon reaching the set requiredpressure.

It overrides the power control.

The integrated pressure control valve is controlled by a pressure reliefvalve (not supplied) which is located separate from the pump.

The integrated pressure control valve is uniformly supplied withpressure from both sides in addition to the spring force (pressurebalance in a state of equilibrium) until the required pressure of theseparate pressure limiting valve is reached.

The required pressure on the separate pressure limiting valve liesbetween 50 and 350 bar.

When the required pressure is reached on the separate pressurelimiting valve, it opens and the pressure on the spring side of theintegrated pressure control valve is reduced to tank. The integratedpressure control valve switches (pressure balance no longer in a stateof equilibrium) and the pump swivels in direction of minimumdisplacement Vgmin.

The differential pressure on the integrated pressure control valve isset to 25 bar as standard. The consumption of control oil is thenapprox. 2 L/min. Please specify in plain text if a different setting(range 14 to 50 bar) is required.

The following are recommended for use as separate pressure limitingvalve:

DBD 6 (hydraulic) as per RE 25402

DBETR-SO 437 with damped piston (electric) as per RE 29166

The max. line length should not exceed 2 m.

qVmax

Volu

men

stro

m q

V

350qVmin

Einstellbereichferngest. Druckregelung


∆p max. 10 bar

50

Unit dimensionsPorts

Size A1 A2 A3 A4 A5 A6 A7 A8 X3, M250 385 170 248 380 74 112 297 227 M14 x 1.5355 430 175 279 425 82 131 333 257 M14 x 1.5500 490 200 306 483 96 142 382 284 M14 x 1.5

Variation LRG with remote-controlled pressure control, initial setting Vgmax


Clockwise rotation

Circuit diagram, power controller with remote-controlledpressure control

PortsX3 Port for separate pressure limiting valveM Measuring port, positioning pressure (plugged)

MB R1 R2B

U X3

M

S

Vgmin Vgmax Power control

Integrated pressurecontrol

Pressure limiting valve,not supplied

M


A1

A4

X3

A 5

X3

Maße bis AnflanschflächeA 2

A 3

A6

A 8

A7

M

M

X3


A1

A 2A 3

A 5

Maße bis Anflanschfläche

A4

X3

A6

A 8

A7

M


Power controlDifferential

pressure

Power controlDifferential

pressure

Characteristic

Flow

qV


Setting range for remote-

controlled pressure control



Dimensions to mounting flange face


RE 92 203/05.99


Unit dimensionsGeneral dimensions on pages 7-9.

Hydraulic stroke limitation is used for infinite adjustment of the flowbetween Vgmax and Vgmin.It is overriden by the power control.Displacement is set by the pilot pressure applied at port X1.Max. permissible pilot pressure pStmax _____________________ 100 barControl oil loss _______________________ approx. 0.3 L/min

Hydraulic pressure limitation takes the required positioning pressurefrom the high pressure. It must be noted that the operating pressurerequires at least 40 bar.If the pressure is lower, the pump must be supplied with an externalpositioning pressure of at least 40 bar via port X2.The start of control can be adjusted.Please specify the start of control (bar) in plain text whenordering.

H3 ∆pSt for hydraulic stoke adjustment _____________ 35 barStart of control, variable ______________________ 7 - 50 barStandard setting for start of control _________________ 10 bar

Vg

Vgmax

1

0

0,8

0,6

0,4

0,2

20 60 80 1000 40 120Steuerdruck pSt [bar]

Verd

räng

ungs

volu

men

∆pSt = 25 bar

∆pSt = 35 barVg

Vgmax

1

0

0,8

0,6

0,4

0,2


Verd

räng

ungs

volu

men

Unit dimensions PortsSize A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 X1

* , M X2

250 385 188 248 370 144 327 123 49 297 227 M 14 x 1.5 M 14 x 1.5355 432 203 279 416 157 366 137 54 333 257 M 14 x 1.5 M 14 x 1.5500 490 215 306 470 169 417 148 61.5 382 284 M 14 x 1.5 M 18 x 1.5

H2 ∆pSt for hydraulic stoke adjustment______________ 25 barStart of control, variable ______________________ 5 - 50 barStandard setting for start of control _________________ 10 bar


1

0

0,8

0,6

0,4

0,2

Vg

Vgmax

Verd

räng

ungs

volu

men

∆pSt = 10 bar

H1 ∆pSt for hydraulic stoke adjustment______________ 10 barStart of control, variable ______________________ 2 - 20 barStandard setting for start of control __________________ 5 bar

Variation LRDH with hydraulic stroke limitation, initial setting Vgmax

Clockwise rotation


Circuit diagram, power controller with integrated pressurecontrol and hydraulic stroke limitation H

Ports, see page 15.

MB R1 R2B

U

M

S

Vgmin Vgmax

X1

X2


M

X1A8 X2

M

X163 X2

Hydraulic strokelimitation H

* For size 250 and anticlockwise rotation, flared screw fitting BO-RSWV 8SMWD pipe dia. 8 DIN 2391

Start of control,hydraulic strokelimitation H

Start of control,hydraulic strokelimitation H

A4

max

. A2

A 3A 5

X2

A 7

X1

Maße bis AnflanschflächeA6

A1

A 10

A9

M


A4m

ax. A

2A 3

A 5

X2

157

X1 (Darst. NG 250)

Maße bis Anflanschfläche335

A1A 1

0

A9

M


X1

A 7

X1

bis AnflanschflächeA6A8Port X1,

Anticlockwise rotationSize 355-500

Pilot pressure pSt [bar]

Disp

lace

men

t


Disp

lace

men

t


Disp

lace

men

t


To mountingflange face


Dimensions tomounting flange face

Dim. to mount. flange face

(Size 250 shown)

RE 92 203/05.99


Hydraulic stroke limitation is used for infinite adjustment of the flowbetween Vgmin and Vgmax.It is overriden by the power control.Displacement is set by the pilot pressure applied at port X1.Max. permissible pilot pressure pStmax _____________________ 100 barControl oil loss _______________________ approx. 0.3 L/min

A pressure of 40 bar is required for hydraulic stroke limitation. Therequired positioning oil is taken from the high pressure side.An external positioning pressure is not required when the operatingpressure > 40 bar and Vgmin > 0. Port X2 must be plugged beforecommissioning in this case. In all other cases, an external positioningpressure of at least 40 bar must be connected to port X2.The start of control can be varied.Please specify the start of control (bar) in plain text whenordering. Unit dimensions

General dimensions on pages 7-9.Clockwise rotation

N3 ∆pSt for hydraulic stoke adjustment _____________ 35 barStart of control, variable ______________________ 7 - 50 barStandard setting for start of control _________________ 10 bar

Vg

Vgmax

1

0

0,8

0,6

0,4

0,2


Verd

räng

ungs

volu

men

Vg

Vgmax

1

0

0,8

0,6

0,4

0,2


Verd

räng

ungs

volu

men

Circuit diagram, power controller with integrated pressurecontrol and hydraulic stroke limitation N

Anticlockwise rotation∆pSt = 25 bar

∆pSt = 35 bar

Unit dimensions PortsSize A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 X1, M X2

250 385 170 275 276 248 248 210 49 377 116 14 M14 x 1.5 M14 x 1.5355 430 175 300 315 275 278 234 54 425 132 20 M14 x 1.5 M14 x 1.5500 492 200 325 359 300 322 258 61.5 483 144 20 M14 x 1.5 M18 x 1.5

N1 ∆pSt for hydraulic stoke adjustment _____________ 10 barStart of control, variable ______________________ 2 - 20 barStandard setting for start of control __________________ 5 bar

5 15 20 250 10 30

1

0

0,8

0,6

0,4

0,2

Vg

Vgmax

Steuerdruck pSt [bar]

Verd

räng

ungs

volu

men

∆pSt = 10 bar

N2 ∆pSt for hydraulic stoke adjustment _____________ 25 barStart of control, variable ______________________ 5 - 50 barStandard setting for start of control _________________ 10 bar

Variation LRDN with hydraulic stroke limitation, initial setting Vgmin

PortsX1 Pilot pressure portX2 External positioning pressure port (plugged in variation LR.H)M Measuring port, positioning pressure (plugged)

MB R1 R2B

U

M

S

Vgmax Vgmin

X1

X2


A6

max

. A3

A 2A 5

X2

A 7

X1


M

A8X1

Maße bis AnflanschflächeA1A11

MA 1

0A9

X2

Hydraulic strokelimitation N

Start of control, hydraulicstroke limitation N

M

A8X1

A6

max

. A3

A 2A 5

X2

A 7

X1



X2

A11

M

A 10

A9

Start of control, hydraulicstroke limitation N


Disp

lace

men

t


Disp

lace

men

t


Disp

lace

men

t





RE 92 203/05.99


The pressure controller maintains the pressure in a hydraulic systemconstant within its control range despite the changing pump flowrequirements. The variable displacement pump supplies only thevolume of fluid required by the consumers. The pump automaticallyadjusts in direction of minimum displacement when the operatingpressure exceeds the required pressure set on the integrated pressurecontrol valve.


Please specify the pressure control setting (bar) in plaintext when ordering.

A pressure relief valve included in the system to safeguard themaximum pressure must have a cracking pressure at least 20 barabove the control setting. Unit dimensions


Clockwise rotation

Circuit diagram, pressure controller



250 385 161 248 297 227355 430 175 279 333 257500 490 200 306 382 284

DR Pressure controller, initial setting Vgmax

MB R1 R2B

U

M

S

Vgmin Vgmax


M


A1

A 2A 3A 5

A4

M


Pressure control

M


A1

A 2A 3A 5

A4

M


Pressure control

PortsM Measuring ports (Positioning pressure) M 14 x 1.5 (plugged)

qVmax

Volu

men

stro

m q

V

350qV0



∆p max. 10 bar

50

Characteristic

Pressure control


Flow

qV






RE 92 203/05.99


Port X3 is additionally installed for remote pressure controlThe pressure limiting valve located separately from the pump isconnected to this port. The pressure limiting valve is not suppliedwith the DRG.


The required pressure lies between 50 and 350 bar.


The differential pressure on the integrated pressure control valve isset to 25 bar as standard. The consumption of control oil is thenapprox. 2 L/min. Please specify in plain text if a different setting (range14 to 50 bar) is required.



DBETR-SO 437 with damped piston(electric) as per RE 29166


Unit dimensions


Clockwise rotation

Circuit diagram, pressure controller with remote control


Unit dimensions PortsSize A1 A2 A3 A4 A5 A6 A7 A8 X3, M250 385 161 248 380 74 112 297 227 M 14 x 1.5355 430 175 279 425 82 131 333 257 M 14 x 1.5500 490 200 306 483 96 142 382 284 M 14 x 1.5

Variation DRG Remote-controlled pressure control, initial setting Vgmax

PortsX3 Port for separate pressure limiting valveM Measuring port, positioning pressure (plugged)

qVmax

Volu

men

stro

m q

V

350qVmin

Einstellbereichferngest. Druckregelung


∆p max. 10 bar

50

MB R1 R2B

U

M

S

Vgmin Vgmax

X3 Pressure limiting valve,not supplied


M

X3


A1

A 2A 3

A 5

A4

X3

A6

A 8

A7

M


M


A1

A4

X3

A 5

X3

A 2A 3

A6

A 8

A7

M


Differential pressure

Differential pressure

Integratedpressure control

Characteristic

Flow

qV






Setting range for remote-

controlled pressure control

RE 92 203/05.99


Circuit diagram, hydraulic control dependent on pilot pressurePressure-dependent hydraulic control permits infinitely variable adjust-ment of the pump displacement in accordance with the pilot pressure.The adjustment is proportional to the pilot pressure applied to port X1.A pressure of 40 bar is required for adjustment. The required positioningoil is taken from the high pressure side.An external positioning pressure is not required when the operatingpressure > 40 bar and Vgmin > 0. Port X2 must be plugged beforecommissioning in this case.In all other cases, an external positioning pressure of at least 40 barmust be connected to port X2.Max. permissible pilot pressure pStmax _____________________ 100 barControl oil loss _______________________ approx. 0.3 L/min

The start of control can be adjusted.Please specify the start of control (bar) in plain text whenordering.HD1D ∆pSt _________________________________ 10 barStart of control, variable ______________________ 2 - 20 barStandard setting for start of control __________________ 5 bar

Unit dimensions


HD3D ∆pSt __________________________________ 35 barStart of control, variable ______________________ 7 - 50 barStandard setting for start of control _________________ 10 bar

5 15 20 250 10 30

1

0

0,8

0,6

0,4

0,2

Vg

Vgmax

Steuerdruck pSt [bar]

Verd

räng

ungs

volu

men

Vg

Vgmax

1

0

0,8

0,6

0,4

0,2


Verd

räng

ungs

volu

men

Vg

Vgmax

1

0

0,8

0,6

0,4

0,2


Verd

räng

ungs

volu

men

∆pSt = 10 bar

∆pSt = 25 bar

∆pSt = 35 bar

Integrated pressure control is supplied as standardDescription, see page 19.

Clockwise rotation


Table of dimensions and ports, see page 19.

HD2D ∆pSt __________________________________ 25 barStart of control, variable ______________________ 5 - 50 barStandard setting for start of control _________________ 10 bar

HD.D Hydraulic control, dependent on pilot pressure, initial setting Vgmin

Start of controlHD pilot valve

MB R1 R2B

U

M

S

Vgmax Vgmin

X1

X2


M

A4X1

A6

max

. A3

A 2A 7

X2A 5

X1



X2

M

A 13

A12

A6

max

. A3

A 2A 7

X2

A 5

X1


M

A4X1


M

A 13

A12

X2

Start of controlHD pilot valve

HD pilot valve

Pressure control


Disp

lace

men

t


Disp

lace

men

t


Disp

lace

men

t





RE 92 203/05.99


HD.DPressure control overrides the HD function and protects the pumpagainst excessive pressure and damage. The pressure control valve isintegrated into the port plate and can be set externally. The pumpadjusts in direction of minimum displacement upon reaching the setrequired pressure.



The pressure relief valve included in the system to safeguard themaximum pressure must have a cracking pressure at least 20 barabove the control setting.

Circuit diagram, see page 18.


Unit dimensionsGeneral dimensions on pages 7-10

qVmax

Volu

men

stro

m q

V

350qV0

EinstellbereichDruckregelung


∆p max. 10 bar

50

Clockwise rotation

Unit dimensionsSize A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11

250 385 161 275 49 210 248 248 276 380 112 74355 432 181 300 54 234 278 275 315 425 131 82500 492 200 325 61.5 258 322 300 359 483 142 961000 617 255 395 70 325 416 371 462 599 176 84

PortsSize A12 A13 A14 X1 X2 X3, M250 377 116 14 M14x1.5 M14x1.5 M14x1.5355 425 132 20 M14x1.5 M14x1.5 M14x1.5500 483 144 20 M14x1.5 M18x1.5 M14x1.51000 610 180 25 M14x1.5 M18x1.5 M14x1.5

HD.GThe remote-controlled pressure control adjusts the pump in directionof minimum displacement Vgmin upon reaching the set required pressure.






The following are recommended for use as separate pressure limitingvalve: DBD 6 (hydraulic) as per RE 25402



Circuit diagram, hydraulic control dependent on pilot pressurewith remote-controlled pressure control

HD.D Integrated pressure control / HD.G with remote-controlled pressure control, initial setting Vgmin

PortsX1 Pilot pressure portX2 External positioning pressure portX3 Port for separate pressure limiting valve (HDG)M Measuring port, positioning pressure (plugged)

MB R1 R2B

U

M

S

Vgmax Vgmin

X1

X2

X3

M

A4X1

A6

max

. A3

A 2A 7

X2

A 5

X1



X3

X3

A10

X2

A9

A 11

A14

M

A 13

A12

A6

max

. A3

A 2A 7

X2

A 5

X1

A8

M

A4

X1


X3

A10

X3

X2

Maße bis Anflanschfläche A9

A 11

A14

M

A 13

A12

Pressure control (or differential pressure HDG)



Pressure control (or differential pressure HDG)

Characteristic

Pressure limiting valve, not supplied

Dim. to mounting flange face A9


Dim. to mounting flange face


Flow

qV


Setting range forpressure control

RE 92 203/05.99


Hydraulic control permits infinitely variable adjustment of the pumpdisplacement.

The displacement is set proportional to the current applied to thesolenoid of the proportional pressure-reducing valve DRE 4 K (seeRE 29181), i.e. the displacement increases with increasing currentintensity.

Various amplifiers from the Rexroth range are available for controllingthe proportional valve, see RE 29181.

A pressure of 40 bar is required for adjustment. The requiredpositioning oil is taken from the high pressure side.

An external positioning pressure is not required when the operatingpressure > 40 bar and Vgmin > 0. Port X2 must be plugged beforecommissioning in this case.

In all other cases, an external positioning pressure of at least 40 barmust be connected to port X2.

A positioning pressure of 30 bar is required at port P to actuate theproportional valve DR4K.

Positioning pressure at port P

required pmin _______________________________________________ 30 bar

pmax _______________________________________________________ 100 bar

Circuit diagram, hydraulic control with electrical proportional valve

Unit dimensions


Clockwise rotation


Integrated pressure control EP.D is supplied as standard and overridesEP. Description, see page 21.

Steuerstrom I (mA)

EP1

EP2

1

0,8

0,6

0,4

0,2

0Verd

räng

ungs

volu

men

200 400 600 8000

400 800 1200 16000

VgVgmax

Model Control voltage Control current(DC) Start of control – End of control

EP1 12V 900mA – 1400mAEP2 24V 450mA – 700mAType of protection IP 65

Unit dimensionsSize A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12

250 385 161 275 115 248 276 238 241 36 112 380 74355 432 181 300 116 275 315 268 286 36 131 425 82500 492 200 325 123 300 359 294 328 43 142 483 96

PortsSize A13 A14 A15 A16 A17 A18 P, X3 (EPG), M, Mst X2

250 377 116 14 248 210 49 M14x1.5 M14x1.5355 425 132 20 278 234 54 M14x1.5 M14x1.5500 483 144 20 322 258 61.5 M14x1.5 M18x1.5

EP.D Hydraulic control with electrical proportional valve, initial setting Vgmin

PortsP Positioning pressure portX2 External positioning pressure portX3 Port for separate pressure limiting valve (EPG)M Measuring port, positioning pressure (plugged)MSt Measuring port, pilot pressure (plugged)

MB R1 R2B

U

P

S

Vgmax Vgmin

MSt

X2

M

M

A9MSt

A8

max

. A3

A 2A 5

X2

A 7

P



A4

PG11PX2

A18

A15

M

A 14

A13

A 17

A16

MSt

A 2M Maße bis Anflanschfläche

A1

A9MSt

A4 A8

max

. A3

A 5

X2

A 7

P

A6

PG11


X2P

A18

A15

M

A 14

A13

A 17

A16

MSt


Proportionalpressure reducingvalve

Pilot valve

Pressure control

Control current I (mA)

Disp

lace

men

t





RE 92 203/05.99


MB R1 R2B

U

P

S

Vgmax Vgmin

MST

X2

M

X3

EP.D Integrated pressure control / EP.G with remote-controlled pressure control, initial setting Vgmin

EP.D Integrated pressure control

Pressure control overrides the ED function and protects the pumpagainst excessive pressure and damage. The pressure control valve isintegrated into the port plate and can be set externally. The pumpadjusts in direction of minimum displacement upon reaching the setrequired pressure.



The pressure relief valve included in the system to safeguard themaximum pressure must have a cracking pressure at least 20 barabove the control setting.

Circuit diagram, see page 20.

qVmax

Volu

men

stro

m q

V

350qV0

EinstellbereichDruckregelung


∆p max. 10 bar

50

Unit dimensions

General dimensions on pages 7-9.Clockwise rotation


EP.G with remote-controlled pressure control

The remote-controlled pressure control adjusts the pump in directionof minimum displacement Vgmin upon reaching the set required pressure.










Circuit diagram, hydraulic control with electrical proportional valveand remote-controlled pressure control

Table of dimensions and ports, see page 20.


M

A9MSt

A8

max

. A3

A 2A 5

X2

A 7

P

A16


A4

PG11

X3

A15

X3

X2P


A 12

A18

A10

M

A 14

A13

A 17

A6

MSt

A 2

M Maße bis AnflanschflächeA1

A9MSt

A4 A8

max

. A3

A 5

X2

A 7

P

A6

PG11

X3

X2P

Maße bis Anflanschfläche A11

A 12

X3

A10

A16

A15

A18

M

A 14

A13

A 17

MSt

Characteristic

Pressure control (or differential pressure EPG)

Pressure control (or differential pressure EPG)


Pressure limiting valve, not supplied


Setting range forpressure control

Flow

qV





RE 92 203/05.99


V Visual swivel angle indication

The swivel position is indicated by a pin at the side of the port plate(cap nut must be removed).

The protruding length of the pin varies in accordance with the positionof the control cam.

The pump is at zero when it is flush with the port plate.

The length of the pin is approx. 8 mm when swivelled to maxi-mum Vgmax.

E Electrical swivel angle indication

The pump position is indicated via an inductive position transducerin this case.

The transducer transforms displacement of the control device into anelectrical signal via which the swivel position can be fed to an amplifiercard, for example.

Inductive position transducer type IW9 – 03 – 01

V Visual swivel angle indication / E Electrical swivel angle indication

General dimensions on pages 7-10. General dimensions on pages 7-10.

Visual indication V Electrical indication E

Unit dimensions


*

250 136.5 182 73 238 11355 159.5 205 84 266 11500 172.5 218 89 309 111000 208.5 254 114 402 11* Value for removal of the cap nut


A2

PG 9

A2

Circuit diagram, for example LRD – initial setting Vgmax

MB R1 R2B

U

M

S

Vgmin Vgmax

Vgmax

Vgmin

sα

Circuit diagram, for example EPD – initial setting Vgmin

MB R1 R2B

U

P

S

Vgmax Vgmin

MSt

X2

M

Uα

Unit dimensions

Clockwise rotationAnticlockwiserotation

A5 A1

A 3

A4

SW 1

9


A1 A5

Anticlockwiserotation

Clockwiserotation


RE 92 203/05.99


Preferred types

Preferred types (shorter delivery periods), please specify type and Ident number when orderingType Ident No.

A7V O 250 DR/63R-VPB02 934705A7V O 250 LRD/63R-VPB02 940153

Not to be reproduced or copied – subject to technical change 24/24 A7VO

RE 92 203/05.99

The data in this document is quoted solely forpurposes of product description and should notbe considered to constitute guaranteed andlegally binding properties.

Brueninghaus Hydromatik GmbH

Plant HorbAn den Kelterwiesen 14 • D–72160 HorbTelefon +49 (0) 74 51 / 92-0Telefax +49 (0) 74 51 / 82 21

Notes

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