proportional directional valve, re 29075/08.04 … pdfs/brh prop valve/brh 4wrk(e)_r… · –...

1/22Proportional directional valve,pilot operatedwith electrical position feedbackand integrated electronics (OBE)

Type 4WRKE

Nominal sizes 10 to 35Component series 3XMaximum operating pressure 350 barMaximum flow 3000 L/min

RE 29075/08.04Replaces: 05.02

Overview of contents

Contents Page

Features 1

Ordering details 2

Preferred types 3

Symbols (simplified) 3

Symbols (detailed) 4

Function, section, valve features 4, 5

Technical data 6

Electrical connections, plug-in connector 7

Connection allocation / Block circuit diagram for the integrated electronics (OBE) 8

Characteristic curves 9-14• Transient function • Flow-command value function

Unit dimensions 15-20

Pilot oil supply 21, 22

Features

– Pilot operated 2-stage proportional directional valve with electrical position feedback of the main spool and integrated electroncics (OBE)

– The control of the size and direction of a flow

– Actuation via proportional solenoids

– For subplate mounting:Porting pattern to ISO 4401(NS10 to 35),subplates to catalogue sheets RE 45054 to RE 45060 (separate order), see pages 15 to 18

– Electrical position feedback

– Spring-centred main spool

– The pilot control is a single stage proportional directional control valve

– Main stage with closed loop positon control

– Integrated control electronics

H/A/D 6512

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2/22 Bosch Rexroth AG Industrial Hydraulics 4WRKE RE 29075/08.04

Ordering details

Electrically operated 2-stage proprtional directional valve of 4-way design with integrated electronics

Nominal size 10 = 10Nominal size 16 = 16Nominal size 25 = 25Nominal size 27 = 27Nominal size 32 = 32Nominal size 35 = 35

Symbols

P T

a 0 a 0

A B

P T

0 b 0 b

A B

a 0 b

P T

a 0 b

A B

= E= E1-

= E3-

= W6-= W8-

= R

= R3-

= EA 1)

= W6A

= EB 1)

= W6B

With symbols E1-, W8-:P → A :P → B:

qVmaxqV/2

B → T:A → T:

qV/2qVmax

With symbols R; R3:P → A :P → B :

qVmaxqVmax/2

B → P:A → T:

qV/2qVmax

Note:

With the spools W6, W8 and R3 there is a connection from A to T and B to T in the zero position with approx. 2 % of the applicable nominal cross-section.

1) Examples: Spool in switched position „a“ (P → B) ordering detail ..EA.. or W6A

Spool in switched position „b“ (P → A) ordering detail ..EB.. or W6B2) E and W6 only available with characteristic curve form L (linear) 3) E1 and W8 only available with characteristi curve form L (linear) 4) When replacing the component series 2X with component series 3X the

electrical interface is to be defined with A5 (enable signal at Pin C)5) For compatible pressure fluids see page 6

4WRKE 3X 6E G24 K31 D3 *Further details

in clear text

M = 5) NBR sealsV = 5) FKM seals

D3 = With pressure reducing valve

ZDR 6 DP0-4X/40YM-W80(fixed settting)

InterfacesC1 = Com./act. value ± 10 mAA1 4) = Com./act. value ± 10 VF1 = Com./act. value 4 to 20 mA

Electrical connections K31 = Without plug-in connector

with component plug to DIN EN 175201-804

Plug-in connector – separate order,see page 7

Pilot oil supply and drain No code = External pilot oil supply,

external pilot oil drain E = Internal pilot oil supply,

exernal pilot oil drainET = Internal pilot soil supply,

internal pilot oil drainT = External pilot oil supply,

internal pilot oil drain

Supply voltageG24 = + 24 V DC

6E = Proportional solenoid with removable coil

3X = Component series 30 to 39(30 to 39: unchanged installation and connection dimensions)

Characteristic curve form L = Linear P = Linear with fine control range

Ordering details: Nominal flow – see pages 10 to 14

25 = 2) or 50 = 3) or 100 = For nominal size 10

125 = 3) or 200 = For nominal size 16

220 = 3) or 350 = For nominal size 25

500 = For nominal size 27

400 = or 600 = For nominal size 32

1000 = For nominal size 35

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GA B

P T

a 0 ba b

GA B

P T

a 0 b

X

a b

GA B

P T

a 0 b

X Y

a b

GA B

P T

a 0 b

Y

a b

Industrial Hydraulics Bosch Rexroth AGRE 29075/08.04 4WRKE 3/22

Preferred types

NS10

Type Material No.

4WRKE 10 E50L-3X/6EG24ETK31/A1D3M R900719754

4WRKE 10 W6-50L-3X/6EG24EK31/A1D3M R900719667

4WRKE 10 W8-50L-3X/6EG24ETK31/A1D3M R900616658


4WRKE 10 E1-100L-3X/6EG24K31/A1D3M R900706962


4WRKE 10 W8-100L-3X/6EG24TK31/A1D3M R900708991

Symbols (simplified)

Type 4WRKE…–3X…ET.

Internal pilot oil supply

Type 4WRKE . –3X . . T .

External pilot oil supply; internal pilot oil drain

Type 4WRKE…–3X…

External pilot oil supply

Type 4WRKE…–3X…E.

Internal pilot oil supply; external pilot oil drain

NS32

Type Material No.

4WRKE 32 E600L-3X/6EG24K31/C1D3M R900712759

4WRKE 32 W6-600L-3X/6EG24ETK31/A1D3M R900249276NS16

Type Material No.


4WRKE 16 E1-200L-3X/6EG24K31/A1D3M R900973370



NS25

Type Material No.


4WRKE 25 E1-350L-3X/6EG24K31/A1D3M R900973368


4WRKE 25 W8-350L-3X/6EG24K31/A1D3M R900249554

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2 5 6 3

1 4

AB

B A

G

1

3

2

4

2

A B

P T

X Y

a b

a 0 b

P T

P TA B

A B

A B

P T

P T

1


Function, section

Pilot control valve type 4WRAP 6 W7.3X/G24… (1st stage)

The pilot control valve is a direct operated proportional valve. The control edge geometry was designed and optimised for use as a pilot control valve for the proportional directional valves type 4WRKE.

The proportional solenoids are pressure tight, oil-immersed DC solenoids with removable coil. They covert an electrical current proportionally into a mechanical force. An increase in the current strength causes an appropriately higher solenoid force. The set solenoid force remains constant over the entire control stroke.

The pilot control valve basically consists of the housing (1), proportional solenoids (2 and 3), valve spool (4) and springs (5 and 6).

In the de-energised condition both actuator ports are connected to the tank. If one of the two solenoids (2 or 3) is energised, then the solenoid force moves the valve spool (4) against the spring (5 or 6).

Once the overlap area is overcome, the connection to tank of one of the two actuator ports is blocked and the connection pressure chamber is establised. There is flow from P to the control chamber of the main stage.

Symbols (detailed)

Example:

1 Pilot control valve type 4WRAP 6…

2 Main valve

3 Pressure reducing valvetype ZDR 6 DP0-4X/40YM-W80

4 Integrated control electronics

External pilot oil supply,external pilot oil drain

Type 4WRAP 6 W7.3X/G24…

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TA

XP B

YT

B A

1 2

3

5 4 8 7 6 9


Function, section, valve featuresThe type 4WRKE valves are 2-stage proportional directional control valves.

They control the size and direction of a flow.

The main stage is closed loop position controlled so that the spool position is also independent of flow forces at larger flows.

The valve basically consists of the pilot control valve (1), housing (8), main spool (7), covers (5 and 6), centering spring (4), inductive position transducer (9) and the pressure reducing valve (3).

If no input signal is being applied, then the main spool (7) is held in the centre position by the centering spring (4). The two control chambers in the covers (5 and 6) are connected via the valve spool (2) to the tank.

The main spool (7) is connected to suitable control electronics via the inductive position transducer (9). the positional change of the main spool (7) as well as the alteration of the command value at the summation point of the amplifier produces a differential voltage.

With the command value/actual value comparison a possible

control deviation is recognised via the electronics and an electrical current is applied to the proportional solenoid of the pilot valve (1).

The current induces, within the solenoid, a force which is passed onto the solenoid pin which in turn actuates the control spool. The flow which is provided via the control cross-sections causes the main spool to move.

The main spool (7) with the attached core of the inductive position transducer (9) is moved until the actual value is equal to the command value. In the closed loop controlled condition the main spool (7) is force balanced and is held in this closed loop controlled position.

Spool stroke and control opening change in proportional to the command value.

The control electronics are integrated into the valve. By matching the valve and electronics the spread of the series units is kept low.

Prevent the tank lines from emptying; with appropriate installation conditions, a back pressure valve is to be installed (back pressure approx. 2 bar).

Plug Pg7Valve features

– The 2nd stage basically comprises of components from our pro por tional valves.

– The zero point adjustment at the „main stage zero point“ is factory pre-set and can, via a potentiometer in the control electronics, be adjusted within a range of ± 30 % of the zero stroke. The integrated control electronics can be accessed by removing a plug in the housing.

– If the pilot control valve or the control electronics are exchanged then these have to be recalibrated. All calibrations must only be carried out by trained personnel.

Changing the zero point can lead to damage to the system and must only be carried out by trained personnel!

Main stage zero point ±30 % max. possible adjustment

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Technical data (for applications outside these parameters, please consult us!)GeneralNominal sizes NS 10 16 25 27 32 35

Installation and commissioning guidelines Preferably horizontal, see RE 07800

Storage temperature range °C – 20 to + 80

Ambient temperature range °C – 20 to + 50

Weight kg 8.7 11.2 16.8 17 31.5 34

Hydraulic (measured at p = 100 bar, with HLP46 at 40 °C ± 5 °C)Operatingpressure Pilot control valve Pilot oil supply bar 25 to 315

Main valve, ports P, A, B bar Up to 315 Up to 350 Up to 350 Up to 210 Up to 350 Up to 350Return pressure Port T Pilot oil drain, internal bar Static < 10 (pilot valve)

Pilot oil drain, external bar Up to 315 Up to 250 Up to 250 Up to 210 Up to 250 Up to 250

Port Y bar Static < 10 (pilot valve)

Nominal flow qVnom ± 10% at ∆p = 10 bar∆p = valve pressure differential

L/min2550100

–125180

–220350

––

500

–400600

––

1000

Flow of main valve (max. permissible) L/min 170 460 870 1000 1600 3000

Pilot oil flow at ports X or Y with a step form ofinput signal from 0 to 100 % (315 bar) L/min 4.1 8.5 11.7 11.7 13.0 13.0

Pressure fluid Mineral oil (HL, HLP) to DIN 51524 1) Phosphate ester (HFD-R) 2)

Max. permissible degree of pressure fluid contamination

Cleanliness classto ISO 4406 (c)

Pilot control valve Class 17/15/12 3)

Main valve Class 20/18/15 3)

Pressure fluid temperature range °C –20 to +80, preferably +40 to +50

Viscosity range mm2/s 20 to 380, preferably 30 to 45

Hysteresis % ≤ 1

Response sensitivity % ≤ 0.5

ElectricalVoltage type DC

Signal type Analogue

Power, max. W 72 (average value = 24 W)

Electrical connections Plug-in connector to DIN EN 175201-804 4)

Valve protection to EN 60529 IP65 with mounted and fixed plug-in connector

Control electronics Integrated into the valve, see page 8

Additional electronic components Analogue com. value moduleAnalogue com. value module

VT-SWMA-1-1X/...VT-SWMKA-1-1X/...

see RE 29902see RE 29903

1) Suitable for NBR and FKM seals2) Only suitable for FKM seals3) The cleanliness class stated for the components must be adhered

too in hydraulic systems. Effective filtration prevents faults from occurring and at the same time increases the component service life. For the selection of filters see catalogue sheets:RE 50070, RE 50076, RE 50081; RE 50086 and RE 50088

4) Separate order

Note! For details regarding the environmental simulation test covering EMC (electro-magnetic compatibility), climate and mechanical loading see RE 29075-U (declaration regarding environmental compatibility).

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Ø6,

5…Ø

11

A F

ED

C

BØ27

91

“X”

“X”

Ø8…

Ø13

,5

85

“X”


Electrical connections, plug-in connector

Plug-in connector

Plug-in connector to DIN EN 175201-804 Separate order under Material No. R900021267 (plastic version) For pin allocations see block circiut diagram on page 8

Component plug allocation Contact Signal at A1 or F1 Signal at A5

Supply voltage A 24 VDC (18 to 35 VDC); Imax = 1.5 A; impulse load ≤ 3 A

B 0 V

Ref. (actual value) C Ref. potential for actual value (contact F) Enable 4 ... 24 V

Differential amplifier input D ± 10 V or 4 – 20 mA ± 10 V

(command value) E 0 V ref. potentional to D 0 V ref. popentional to D + F

Measurement output (actual value) F ± 10 V or 4 – 20 mA ± 10 V

PE Connected with cooling body and valve housing

Command value: Ref. potential at E and a positive command value at D results in a flow from P to A and B to T

Ref. potential at E and a negative command value at D results in a flow from P to B and A to T

Connection cable: Recommendation: – Up to 25 m cable length type LiYCY 7 x 0.75 mm2

– Up to 50 m cable length type LiYCY 7 x 1.0 mm2

External diameter: – 6.5 to 11 mm (plastic plug-in connector) – 8 to 12 mm (metal plug-in connector) Connect screen to ⊥ only on supply side.

Note: Electrical signals (e.g. actual value or enable signals) taken via valve electronics must not be used to switch off the machine safety functions! (This is in accordance with the regulations to the European Standard „Safety requirement of fluid technology system and components – hydraulics“, EN 982!)

Plug-in connector

Plug-in connector to DIN EN 175201-804 Separate order under Material No. R900223890 (metal version) For pin allocation see block circuit diagram on page 8

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+/–

10

mA

UU U

ID E A B C

IU

IU

IU

≈=

UI

UU

F

UI

+/–

UM

MO

+/–

Ure

f

+/–

10

V

4-20

mA

+/–

10

V

4-20

mA

+/–

10

mA

=≈

IU

UI

24 V

0 V


Connection allocation / Block circuit diagram for the integrated electronics (OBE)

Com

. val

ue Sw

itch

on

curr

ent

limita

tion

Ena

ble

1)

Out

put r

ef. 2)

Out

puts

Mon

itorin

g

Logi

cbi

as c

urre

nt

Con

trol

ler

Bia

s cu

rren

t B

Bia

s cu

rren

t A

Cur

rent

con

trol

ler

Osc

illat

or

Cab

le b

reak

re

cogn

ition Ze

ro p

oint

Out

put s

tage

A

Out

put s

tage

B

Sol

enoi

d A

Sol

enoi

d B

Posi

tion

tran

sduc

er

mai

n st

age

1) O

nly

pres

ent w

ith A

5 el

ectr

onic

s2)

Onl

y pr

esen

t with

A1

and

F1 e

lect

roni

cs

Cur

rent

con

trol

ler

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100

80

60

40

20

10

15 36,25 57,5 78,75 100

10

20

40

60

80

100

15 36,25 57,5 78,75 100


Characteristic curves (measured with HLP46 at 40 °C ± 5 °C)

Spool with characteristic curve L

Command value in % →

Flow

in %

→

Flow-command value function for e.g.P → A / B → T 10 bar valve pressure differential for spools without an area relationship (spools E; W6-)or P → A or A → T 5 bar per control land

Command value in % →

Flow

in %

→

Spool with characteristic curve P

Valid for all of the stated spool symbols E...; W... and R...

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100

75

50

25

0 10 20 30

0 – 25

0 – 50

0 – 75

0 – 100

0 10 20 30

10 20 50 100 200 30020

25

50

100

170

100

50

25

1

90

315


Flow-load function at maximum valve opening (tolerance ± 10 %)

Signal change in %

Time in ms →

Str

oke

in %

→

Transient function with a step form of electrical input signal

Valve pressure differential in bar →

Flow

in L

/min

→

Characteristic curves (measured with HLP46 at 40 °C ± 5 °C) NS10

1 = Recommended flow limitation (flow velocity 30 m/s) in the valve connection ports

Measured at pS = 100 bar

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0

25

50

75

100

10 20 30 40

0 – 100

0 – 75

0 – 50

0 – 25

0 10 20 30 40

10010 20 50 100

200

300

460

200

125

1

200

125

180



Signal change in %

Time in ms →

Str

oke

in %

→



Flow

in L

/min

→Characteristic curves (measured with HLP46 at 40 °C ± 5 °C) NS16



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0

25

50

75

100

10 20 30 40 50 60 0 10 20 30 40 50 60

0 – 100

0 – 75

0 – 50

0 – 25

200

870

220

350

10 20 50 100 200

10001

500

1

30 40



Signal change in %

Time in ms →

Str

oke

in %

→



Flow

in L

/min

→

Characteristic curves (measured with HLP46 at 40 °C ± 5 °C) NS25 and 27



500 – NS27

350 – NS25

220 – NS25

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40 60200 80 100 120 140

0 – 100

0 – 75

0 – 50

0 – 25

40 60200

100

75

50

25

080 100 120 140

1000

600

500

1600

10 20 50 100

1

400

600

400

300200 350



Signal change in %

Time in ms →

Str

oke

in %

→



Flow

in L

/min

→Characteristic curves (measured with HLP46 at 40 °C ± 5 °C) NS32



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0 40 80 120 160 2000 80 12040 160 200

100

75

50

25

0

0 – 100

0 – 75

0 – 50

0 – 25

2000

1000

800

3000

10 20 50 100

1

1500

2500

1000



Signal change in %

Time in ms →

Str

oke

in %

→



Flow

in L

/min

→

Characteristic curves (measured with HLP46 at 40 °C ± 5 °C) NS35



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0,01/100mm

maxR 4

70

86

194

T A P B

B A

35 25,5

52,5 105

244

322

15

3 2 4 5

7

8

9 10

6

1112

13

a

a

b

b

1

F1 F2P

BA

T1T

F3F4

108

27

73

13,5

YX


Unit dimensions (in mm) NS10

Required surface finish of the mating piece

12 Identical seal rings for ports X, Y

13 Machined valve mounting surface, position of the ports is to ISO 4401-05-05-0-94 (ports X, Y as required)Deviation from the standard:- Ports A, B, T, T1 and P Ø 11 mm

1 Pilot control valve

2 Plug-in connector "A", colour grey

3 Plug-in connector "B", colour black

4 Space required for the connection cable and to remove the plug-in connector

5 Cabling

6 Plug-in connector, separate order, see page 7

7 Pressure reducing valve

8 Name plate

9 Main valve


11 Identical seal rings for ports A, B, P, T

Subplates to catalogue sheet RE 45054 and valve fixing screws must be ordered separately.

Subplates: G 534/01 (G 3/4)G 535/01 (G 3/4) with ports X and YG 536/01 (G 1) with ports X and Y

Valve fixing screws:4 S.H.C.S. DIN 912 - M6 x 45 - 10.9; Coating to DIN EN ISO 10683 flZn - 240h - L(friction value 0.09 - 0.14 to VDA 235-102)MA =13.5 Nm, Tighten with a torque wrench with an accuracy of ± 10%

Note:The tightening torque relates to the maximum operating pressure!

For sectional drawing see page 21

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13

36 27

154

290

353

15

B A

Ø3

91

343

96

204

3 1 2 4 5 6

12 1114 9 10

78

b

b

a a

F1

F2

P

BA

XT

F3F4

Y

F5

F6G2

G1

15829

94

12



13 Machined valve mounting surface, position of the ports is to ISO 4401-07-06-0-94 (ports X, Y as required)Deviation from the standard:- Ports A, B, T and P Ø 20 mm

14 Locating pin





5 Cabling



8 Name plate

9 Main valve





Subplates: G 172/01 (G 3/4) G 172/02 (M27 x 2)G 174/01 (G 1) G 174/02 (M33 x 2)

Valve fixing screws:2 S.H.C.S. DIN 912 - M6 x 60 - 10.9; MA = 14 Nm4 S.H.C.S. DIN 912 - M10 x 60 - 10.9; MA = 58 Nmto DIN EN ISO 10683 flZn - 240h - L(friction value 0.09 - 0.14 to VDA 235-102)Tighten with a torque wrench with an accuracy of ± 20%Note:The tightening torque relates to the maximum operating pressure!

0,01/100mm

maxR 4



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0,01/100mm

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Ø6

117

441

126

234

19

191

348

404

15

9 10

78

3 2 4 51 6

11 14 12

B A

b

b

a a

13

(56)

F1

F2

P

BAX

T

F3F4

Y

F5

F6G2

G1

195

21

120

14






13 Machined valve mounting surface, position of the ports is to ISO 4401-08-07-0-94 (ports X, Y as required)Deviations from the standard: - Ports A, B and T deviates from DIN Ø 25 mm- Port P deviates from DIN and ISO Ø 24 mm

14 Locating pin





5 Cabling



8 Name plate

9 Main valve


Subplates: G 151/01 (G 1) G 156/01 (G 1 1/2) G 154/01 (G 1 1/4)

Valve fixing screws:6 S.H.C.S. DIN 912 - M12 x 60 - 10.9;Coating to DIN EN ISO 10683 flZn - 240h - L(friction value 0.09 - 0.14 to VDA 235-102)MA =100 Nm, Tighten with a torque wrench with an accuracy of ± 20%

Note:The tightening torque relates to the maximum operatingpressure!



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0,01/100mm

maxR 4

Ø6

120

441

140

248

21

198

353

411

15

9 10

78

3 2 4 51 6

11 14 12

B A

b

b

a a

13

(58)

F1

F2

P

BAX

T

F3F4

Y

F5

F6G2

G1

200

21

124

14



9 Main valve





14 Locating pin




4 Space required for the connection cableand to remove the plug-in connector

5 Cabling

6 Plug-in connectorseparate order, see page 7


8 Name plate


Subplates: G 151/01 (G 1) G 156/01 (G 1 1/2) G 154/01 (G 1 1/4)

Valve fixing screws:6 S.H.C.S. DIN 912 - M12 x 60 - 10.9;Coating to DIN EN ISO 10683 flZn - 240h - L(friction value 0.09 - 0.14 to VDA 235-102)MA =100 Nm, Tighten with a torque wrench with an accuracy of ± 20%

Note:The tightening torque relates to the maxiumum operatingpressure!



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0,01/100mm

maxR 4

152

197

494Ø 6

260

13

505

254

(80,5)

191

424,5

9 10

8

5

1112

15

7

3 2 41

B A

a

a

6

14

21,5

F1 F2

P

BA

X

T

F3F4

Y

F5

F6G2

G1

257

23

200

20,5






14 Locating pin




4 Space required for the connection cableand to remove the plug-in connection

5 Cabling



8 Name plate

9 Main valve




Subplates: G 157/01 (G 1 1/2)G 157/02 (M48 x 2)G 158/10 (flange)

Valve fixing screws:6 S.H.C.S. DIN 912 - M20 x 80 - 10.9;Coating to DIN EN ISO 10683 flZn - 240h - L(friction value 0.09 - 0.14 to VDA 235-102)MA = 340 Nm, Tighten with a torque wrench with an accuracy of ± 20%



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0,01/100mm

maxR 4

316

584,5

197

345,

4

209

9 12 10

3 1 2 4 5 6

42,7Ø 6

704

78

a

a

215

(118,7) 465,8

11

15

b

b

B A

1314

F1 F2

P

BA

X

T

F3F4

Y

F5

F6G2

G1

320

45

200

20,5







14 Locating pin1 Pilot control valve



4 Space required for the connection cableand to remove the plug-in connector

5 Cabling



8 Name plate

9 Main valve


Valve fixing screws6 S.H.C.S. DIN 912 - M20 x 100 - 10.9; Coating to DIN EN ISO 10683 flZn - 240h - L(friction value 0.09 - 0.14 to VDA 235-102)MA = 360 Nm, Tighten with a torque wrench with an accuracy of ± 20%



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P T

P

T

X Y1Y

T

2

3

3

X

Y T

P

XP

1


Pilot oil supply

Type 4WRKE…-3X/… External pilot oil supply external pilot oil drain

In this version the pilot oil supply is from a separate pilot pres-sure circuit (external).

The pilot oil drain is not into the T port of the main value but separately into tank via port Y (external).

Type 4WRKE…-3X/…E… Internal pilot oil supply external pilot oil drain

In this version the pilot oil supply is from the P port of the main valve (internal).

The pilot oil drain is not into the T port of the main valve but separately into tank via port Y (external).

Port X must be plugged in the subplate.

Type 4WRKE…-3X/…ET… Internal pilot oil supply internal pilot oil drain

In this version the pilot oil supply is from the P port of the main valve (internal).

The pilot oil drain is directly into the T port of the main valve (in ternal).

Port Y must be plugged in the subplate.

Type 4WRKE…-3X/…T… External pilot oil supply internal pilot oil drain

In this version the pilot oil supply is from a separate pilot pres-sure circuit (external).

The pilot oil drain is directily into the T port of the main valve (in ternal).

Port Y must be plugged in the subplate.

Pos. 1 and 2: Plug M6 DIN 906-8.8 3A/F

NS10 Sectional diagram, see page 15

Section a–a Section b–b

Pilot oil supply external: 1 closed

(section a–a) internal: 1 open

Pilot oil drain external: 2 closed(Pos 3 not present)

(section b–b) internal: 2 open(Pos 3 present)

3 Check valve


Section a–a Section b–bPressurereducing valve

Main valve

Cover

Main valve

Pilot oil supply external: P closed

(section a–a) internal: P open

Pilot oil drain external: 1 closed(Pos 3 not present)

(section b–b) internal: 1 open(Pos 3 present)

3 Check valve

Pressurereducing valve

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T

X

T

Y1

2

PP T

1

2X

T

X Y

Y

P

PX

T

T2 1

Bosch Rexroth AGIndustrial HydraulicsZum Eisengießer 197816 Lohr am Main, GermanyTelefon +49 (0) 93 52 / 18-0Telefax +49 (0) 93 52 / 18-23 [email protected]


© 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 serves to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The details stated do not release you from the responsibility for carrying out your own assessment and verification. It must be remembered that our products are subject to a natural process of wear and ageing.


Cover Main valve

Pilot control valve

Main valve

Main valve

Pressurereducing valve



Pilot oil drain external: 2 closed

(section b–b) internal: 2 open


Section a–a Section b–b

Pilot oil supply




(section b–b) internal: 2 open


internal: 1 open


internal: 2 open


and 27 Section a–a Section b–b

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Notes

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proportional directional valve, re 29075/08.04 … pdfs/brh prop valve/brh 4wrk(e)_r… · –...

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