4/3-way servo solenoid directional control valves, pilot operated, … · 2019. 2. 28. · re...

1/16

4/3-way servo solenoid directional control valves, pilot operated, with electrical position feedback(Lvdt DC/DC ±10V)Type 4WRL 10...35, symbols E./W.

Sizes (NG) 10, 16, 25, 27, 35Unit series 3XMaximum working pressure P, A, B 350 bar (NG27: 280 bar)Nominal flow rate 80...1100 l/min (∆p = 10 bar)

RE 29087/01.09Replaces: 01.05

List of contentsContents PageFeatures 1Ordering data 2Accessories, function, sectional diagram 3Control oil supply 4Technical data 5 and 6Valve with external trigger electronics 7 and 8Characteristic curves 9 to 11Unit dimensions 12 to 15

Features – Pilot operated 4/3-way servo solenoid directional control

valves NG10 to NG35, with approx. 20 % overlap– Pilot valve NG6, with control piston and sleeve in servo

quality, actuated on one side, 4/4 fail-safe position when switched off

– Control solenoid with electrical position feedback and electronics for position transducer (Lvdt DC/DC)

– Main stage with position feedback– Spool with linear travel, with anti-rotation element– Flow characteristic

• S = Progressive• NG16, 25 and 27 with load tap C1/C2

– For subplate attachment, mounting hole configuration NG10 to ISO 4401-05-05-0-05, NG16 to ISO 4401-07-07-0-05, NG25/27 to ISO 4401-08-08-0-05 and NG35 to ISO 4401-10-09-0-05

– Subplates as per Technical Data Sheet, NG10 RE 45055,NG16 RE 45057, NG25/27 RE 45059 and NG35 RE 45060 (order separately)

– Plug-in connectors to DIN 43560-AM2Solenoid 2P+PE/M16 x 1.5, position transducer 4P/Pg7 included in delivery, see Technical Data Sheet RE 08008

– External trigger electronics (order separately)• Electric amplifier for standard curve without ramps• Electric amplifier with ramps and dead-band compensation

For information regarding the available spare parts see:www.boschrexroth.com/spc

2/16 Bosch Rexroth AG Hydraulics 4WRL 10...35 RE 29087/01.09

Ordering data

1) NG27 is a high-flow version of NG25, ports P, A, B and T have ∅ 32 mm in the main stage. Contrary to standard ISO 4401-08-08-0-05, ports P, A, B and T may be drilled to max. ∅ 30 mm in the control block. These valves therefore offer higher flow rates QA : QB

2) NG35 is a high-flow version of NG32, ports P, A, B and T have ∅ 50 mm in the main stage. Contrary to standard ISO 4401-10-09-0-05, ports P, A, B and T may be drilled to max. ∅ 48 mm in the control block. These valves therefore offer higher flow rates QA : QB

For external trigger electronics = no desig.NG10 = 10NG16 = 16NG25 = 25NG27 1) = 27 NG35 2) = 35Control spool symbols = E, E1

= E (Z), E1 (Z)

= W, W1

= W (Z), W1 (Z)

= E4

= W4

Transitional symbols

With symbol E1, E1(Z), E4, W1, W1(Z), W4:P → A: qv B → T: qv/2P → B: qv/2 A → T: qv

With load tap C1/C2 (NG16, 25, 27) = Z

Further informationin plain text

M = NBR seals,suitable for

mineral oils (HL, HLP)to DIN 51524

Electrical connectionZ4 = with plug-in connector,

with plug to DIN 43560-AM2

Plug-in connector included in delivery

Control oil inlet “x” control oil return “y”

No desig. = “x” = external, “y” = externalE = “x” = internal, “y” = externalET = “x” = internal, “y” = internalT = “x” = external, “y” = internal

Power supplyof trigger electronics

G24 = +24 V DC3X = Unit series 30 to 39

(installation and connectiondimensions unchanged)

Flow characteristicS = Progressive

Nominal flow rate at 10 bar valve pressure difference(5 bar per metering notch)

NG1080 = 80 l/min

NG16110 = 110 l/min180 = 180 l/min

NG25350 = 350 l/min

NG27430 = 430 l/min 1)

NG351100 = 1100 l/min 2)

4WRL S 3X G24 Z4 M *

A B

P T

C1

C2

A B

P T

A B

P T

A B

P T

C1

C2

A B

P T

C1

C2

A B

P T

A B

P T

A B

P T

A B

P T

A B

P T

Hydraulics Bosch Rexroth AGRE 29087/01.09 4WRL 10...35 3/16

Accessories, not included in deliveryFastening bolts NG10 4 x ISO 4762-M6 x 40-10.9-N67F821 70 2 910 151 209

NG16 2 x ISO 4762-M6 x 45-10.9-N67F821 70 2 910 151 2114 x ISO 4762-M10 x 50-10.9-N67F821 70 2 910 151 301

NG25/27 6 x ISO 4762-M12 x 60-10.9-N67F821 70 2 910 151 354NG35 6 x ISO 4762-M20 x 90-10.9-N67F821 70 2 910 151 532VT-VRRA1-527-20/V0/2STV, see RE 30045 0 811 405 063VT-VRRA1-527-20/V0/RTS-2STV, see RE 30044 0 811 405 073

2P+PE 4P

2P+PE (M16 x 1.5) and 4P (Pg7) included in delivery, also see RE 08008

Testing and service equipment– Test box type VT-PE-TB2, see RE 30064 – Test adapter type VT-PA-3, see RE 30070

Function, sectional diagram

Functional descriptionWhen the control solenoid is not actuated, the control spool is held by springs in the fail-safe position, and the main stage spool remains in spring-centered mid position.In the on-board electronics, the pre-defined setpoint is compared with the actual value for the position of the main stage control spool. In the event of an error signal, the control solenoid is actuated, and the pilot spool is moved as the magnetic force changes. The flow released through the control cross-sections causes the main control spool to move. If the input setpoint is 0 V, the main stage control spool is spring-centered in overlapped mid position. The control oil is conveyed to the pilot valve either internally via port P or externally via port X. The oil returns to the tank internally via port T or externally via port Y.

Power failureIn the event of a power failure or an open circuit, the on-board electronics cut off the electricity to the control solenoid and the pilot spool moves to the fail-safe position, relieving the control oil chambers of the main stage. The main stage control spool is spring-centered in mid position.

7 TE

1

TC1A P B

X C2 Y

2

ConstructionThe valve consists of two main assemblies:– Pilot valve (1) with control spool and sleeve,

return springs, control solenoid and inductive position transducer

– Main stage (2) with centering springs and position feedback


Type...–3X...

Type...–3X...E...

Type...–3X...ET...

Type...–3X...T...

No designation = “x” = external “y” = externalE = “x” = internal “y” = externalET = “x” = internal “y” = internalT = “x” = external “y” = internal

A B

P T Y X

G

ba

G

A B

P T X

G

ba

G

A B

P T

G

ba

G

A B

P T Y

G

ba

G

Control oil supply

The pilot valve can be supplied both via ports X and Y(externally) and via the main flow channels P and T.

NG10, 25, 27, 35 NG16

Symbol in detail(external control oil inlet and outlet)

Main valve

Pilot valve

X Y

Pv Tv

P T

Y X

PvTv

P

P T

TP

A

A

B

B

Ta b

P

A B

0a b

G

G

XP Y T


Technical data

GeneralConstruction Spool type valve, pilot operatedActuation Servo solenoid directional control valve NG6, with position controller

for pilot valve and main stage, external electric amplifierType of mounting Subplate, mounting hole configuration NG10...35 to ISO 4401-...Installation position OptionalAmbient temperature range °C –20...+50Weight kg NG10 8.35 NG16 10 NG25 18 NG27 18 NG35 80Vibration resistance, test condition Max. 25 g, shaken in 3 dimensions (24 h)

Static/DynamicOverlap in mid position ≈ 18...22 % of spool stroke, electrically adjustable for UD–E ±0.5 V

with 0 811 404 073Spool stroke, main stage ± mm 4 7 10 10 12.5Control oil volume of main stage 100 % cm3 1.1 4.3 11.3 11.3 41.5Control oil requirement 0...100 %,(at X = 100 bar) l/min 2.2 4.7 11.7 11.7 15.6Hysteresis % <0.1 scarcely measurableManufacturing tolerance See flow curves, adjustable with 0 811 404 073Response time for 0...100 %, (at X = 100 bar) ms <40 <80 <80 <80 <130Response time for 0...100 %, (at X = 10 bar) ms <150 <250 <250 <250 <500Switch-off behavior After electrical switch-off (pilot valve in fail-safe)

Main stage moves to spring-centered overlapped mid positionThermal drift <1 % at ∆T = 40 °C

1) The purity classes stated for the components must be complied with in hydraulic systems. Effective filtration prevents problems and also extends the service life of components. For a selection of filters, see Technical Data Sheets RE 50070, RE 50076 and RE 50081.

2) Flow rate at a different Δp Qx = Qnom · ∆px5!w

Hydraulic (measured with HLP 46, oil = 40 °C ±5 °C)Pressure fluid Hydraulic oil to DIN 51524...535, other fluids after prior consultationViscosity range recommended mm2/s 20...100

max. permitted mm2/s 10...800Pressure fluid temperature range °C –20...+80Maximum permissible degree of contamination of pressure fluidPurity class to ISO 4406 (c) Class 18/16/13 1)

Flow direction See symbolNominal flow at∆p = 5 bar per notch 2) l/min

NG10 NG16 NG25 NG27 NG3580 180 350 430 1100

Max. Ports P, A, Bworking (external control oil inlet) bar 350 350 350 280 350pressure Ports P, A, B, X bar 280 Ports T, Y bar 250Min. control oil pressure in “pilot stage” bar 8Qmax l/min 170 450 900 1000 3000QN pilot valve (inlet)∆p = 35 bar l/min 2 4 12 12 40Leakage of pilot valve at X = 100 bar cm3/min <150 <180 <350 <500 <1100Leakage of main stage control spool symbols “E” at P = 100 bar l/min <0.25 <0.4 <0.6 <0.6 <1.1


Technical data

ElectricalCyclic duration factor % 100 EDPower supply 24 V DCnom (external electric amplifier)Degree of protection IP 65 to DIN 40050Solenoid connector Connector DIN 43560/ISO 4400 M16 x 1.5 (2P+PE)Position transducer connector Connector Pg7 (4P)Max. solenoid current A 2.7Coil resistance R20 Ω 2.5Max. power consumption at 100 % load and operating temperature VA 40Position transducerDC/DC technology

Supply: +15 V/35 mA–15 V/25 mA

Signal: 0...±10 V (RL ≧10 kΩ)

All characteristics only in connection with valve amplifier 0 811 405 063

ImportantPilot operated 4/3-way servo solenoid directional control valves with positive overlap function in open or closed-loop-controlled axes and have approx. 20 % overlap when switched off. This condition does not constitute an active fail-safe position. For this reason, many applications require the use of “external check valves”, which must be taken into account during the On/Off switching sequence.


DC

Sich

erhe

itsl

ogik

ON

grün

rot

Just

ieru

ngN

ullp

unkt

Pote

ntio

met

er-

Vers

orgu

ng

Steu

er-N

ull

Steu

er-N

ull

Sign

al-

Eing

änge

oder

Frei

gabe

Fehl

er

5%

St 3

1–5

Diff

eren

z-ve

rstä

rker

gelb

Lvdt

.

8.5V

=

max

40V +U

K

UE

+U

K

+U

B24

V=/m

ax…

A

4700

mF/

63V=

>10

% r

ippl

e (U

B)

Vers

orgu

ng

Ster

npun

kt 0

V

Leis

tung

s-N

ull

b 2

Steu

er-N

ull

z 28

+U

K

UB

DC D

S

100k

100k

S

NG

10N

G16

NG

25N

G27

NG

35

12

12

34

12

34

U

SU

+ –

DS

b 8

b 6

b 30

b 24

Ref–

0–z

30b

2210

V

+

++

–b

30

z 28

b 2

b 4

z 4

z 2

b 28

Ref–

0–z

30b

2610

V

15V

10V

10V

0V 10V

0Vb

20

z 20

100k

z 16

z 22

24V=

/24

V

0Vm

ax 1

00m

A

+10

Vm

ax 4

0V=

b 14

b 12

b 32

z 32

+10

V/10

mA

–10V

/10m

A

+10

V

–10V

+15

V

–15V

Valve with external trigger electronics (standard: without ramps, overlap compensation)Block diagram/pin assignment

Versions of trigger electronics– With ramps and overlap compensation,

see RE 30044

24V

DC

/max…

A s

up

ply

Neutr

al

0V

Safe

ty lo

gic

s

b 2

Po

wer

zero

z 28 C

ontr

ol

zero

red

gre

en

yello

w

Zero

ad

just

ment

Po

tenti

om

ete

r

sup

ply

Co

ntr

ol ze

ro

Enab

ling

Sig

nal in

puts

Err

or

Co

ntr

ol ze

ro

Dif

fere

nti

al

am

plifi

er

or


DC

Sich

erhe

itsl

ogik

ON

grün

rot

Steu

er-N

ull

Steu

er-N

ull

Sign

al-

Eing

änge

b 20 Q

P–A

P–B

Frei

gabe

Fehl

er

gelb

Lvdt

.

8,5V

=

max

40V +U

K

+U

K

+U

B24

V=/m

ax 1

,5A

4700

mF/

63V=

>10

% r

ippl

e (U

B)

Vers

orgu

ng

Ster

npun

kt 0

V

Leis

tung

s-N

ull

b 2

Steu

er-N

ull

z 28

+U

K+

UE

+U

E

UE

24V

(+U

E)

Q =

0

gain

Logikze

ro

gain

ram

p

–UE

–UE

UB

DC D

S

100k

100k

100k

100k

S

NG

10N

G16

NG

25N

G27

NG

35

12

12

34

12

34

U

SU

–15V

–15V

+15

V

T =

0U

T =

ext

.U

Tin

t.

S I0,

1…3

s0,

3…10

sm

ode

UT

ext.

ram

ps

DS

SU

Eb

8

b 6

b 30

b 24

Ref–

0–

Sign

al

+15

VRe

f–0–

Sign

al

z 30

b 22

10V

10V

++

b 30

z 28

b 2

b 4

z 4

z 2

b 28

z 30

b 26

15V

10V

0,3V

0V

b 20

z 20

10V

0…

100k

100k

100k

z 12

z 10

100k

z 16

z 22

24V=

/24

V

0Vm

ax 1

00m

A

+10

V

UE

UE

UE

UE

UE

UA

10V

0…

10V

0… 0…+

10V

0…+

10V

10…

40V

max

Ri

100

k

UE

z 18

z 14

z 6

b 16

b 18

z 24

Q=

0

max

40V

=

b 14

b 12

b 32

z 32

+10

V/10

mA

–10V

/10m

A

+10

V

–10V

+15

V

–15V

Diff

eren

z-ve

rstä

rker

Pote

ntio

met

er-

Vers

orgu

ng

+U

E

–UE

acc.

decc

.D

T in

t.

D T

1

D T

=0

(ram

p of

f)

D T

ext

.de

cc. U

T

acc.

UT

Diff

–0–

(UT)

max

0,1A

D T

2

+U

E–U

E

UT

ext.

mod

e

100k

Valve with external trigger electronics (standard: with ramps, overlap compensation)Block diagram/pin assignment

Versions of trigger electronics– With standard linear curve,

see RE 30045

Ram

p co

ntro

l fun

ctio

n di

agra

m,

see

RE

3004

4

+U

B 2

4V

DC

/max

1.5

A s

up

ply

Neutr

al

0V

Safe

ty lo

gic

s

b 2

Po

wer

zero

z 28 C

ontr

ol

zero

red

gre

en

yello

w

Logic

Po

tenti

om

ete

r

sup

ply

Co

ntr

ol

zero

Enab

ling

Sig

nal

inp

uts

Err

or

Co

ntr

ol

zero

Dif

fere

nti

al

am

plifi

er


20 6040 80 100%-100%-100%

Hub(%)

comp.(15-25%) (15-25%)

-80

-80

-60

-60

-40

-40

-20

-20

0

2 64 8 b20 : sign.z20 : 0V

10V-10V -8 -6 -4 - 2 - 0,5 0

2 64 8 10V-10V -8 -6 -4 - 2 0

0,5

20

60

40

80A B

P T

A B

P T

100%

0

P-AB-T

B-T(2:1)

P-B(2:1)

P-BA-T

Volu

men

stro

m Q

B

A

20 6040 80 100%-100%Hub(%)

comp.(15-25%) (15-25%)

-80 -60 -40 -20 0

2 64 8 b20 : sign.z20 : 0V

10V-10V -8 -6 -4 - 2 - 0,5 0

2 64 8 10V-10V -8 -6 -4 - 2 0

0,5

B

A

-100%

-80

-60

-40

-20

20

60

40

80A B

P T

A B

P T

A B

P T

100%

0

P-A

P-B

A-T

B-T

Volu

men

stro

m Q

Characteristic curves (measured with HLP 46, oil = 40 °C ±5 °C)

Amplifier A with ramp 0 811 405 073 – RE 30044 B without ramp 0 811 405 063 – RE 30045

Flow rate – signal functionQ = f (UE)

Symbol E(Z), W(Z) (QA : QB = 1 : 1)E1(Z), W1(Z) (QA : QB = 2 : 1)

Symbol E4, W4 (QA : QB = 2 : 1)

Control spool with asymmetric metering notchesControl spools with asymmetric metering notches are available in a ratio of 2:1 for the purpose of adaptation to differential cylinders.

Control spools in a differential circuitIn order to produce differential circuits, valve spools with a 4th position are available. It is sufficient to install a non-return valve in the consumer lines.

In addition, a control spool (symbol) with internal B-P connection is employed for certain branch-oriented solutions. However, we recommend that you consult the BRH Application Center with regard to these special symbols, as a simulation or knowledge of this type of system is usually required.

Flow in mid position, “leakage oil pressure relief”With symbol “E”, leakage oil in the two work chambers A and B of the control piston gives rise to a build-up of pressure in A or B, which then causes a connecting cylinder to drift out of position.In many cases, the “W” symbol is a better solution. With a setpoint of “0”, the control piston moves into the over-lapped mid position. In this mid position, pressure is then relieved from ports A and B with 1 % +0.5 % QN to T. This also supports the function of external check valves.

A B

2 : 1

P T XY

G G

A B

P T XY

G G

Flo

w r

ate

QFl

ow

rate

Q

Stroke (%)

Stroke (%)


A BC1

m

C2P T XY

G G

A B

P T Y X

G G

Characteristic curves (measured with HLP 46, oil = 40 °C ±5 °C)Load tap C1/C2To compensate for fluctuations in the load or supply pressure, 4/3-way servo solenoid directional control valves are combined with pressure compensators. The load is tapped via a shuttle valve for the NG10 and 35, and via two additional ports C1 and C2 for the NG16, 25 and 27 (“4WRL” and “4WRLE” only).The pressure compensator therefore always receives the correct pressure signal even in the event of negative load.When using pressure compensators, an external control oil supply should always be selected.

NG16, 25, 27NG10, 35


Characteristic curves (measured with HLP 46, oil = 40 °C ±5 °C)

NG10

NG16

NG25/27

NG35

Response time (at X = 100 bar)

Open Close

0 25ms 50ms0

20

40

60

80

100U E

%

10

30

50

70

90

0 25ms 50ms0

20

40

60

80

100

U E %

10

30

50

70

90

0 50ms 100ms0

20

40

60

80

100

U E %

10

30

50

70

90

0 50ms 100ms

50ms 100ms 50ms 100ms

0

20

40

60

80

100

U E %

10

30

50

70

90

00

20

40

60

80

100

U E %

10

30

50

70

90

00

20

40

60

80

100

U E %

10

30

50

70

90

0 100ms 200ms0

20

40

60

80

100

U E %

10

30

50

70

90

100ms 200ms00

20

40

60

80

100

U E %

10

30

50

70

90


Unit dimensions NG10 (nominal dimensions in mm)

1 Pilot valve2 O-ring 9.25 x 1.78 (ports P, A, B, T)3 Main valve4 Inductive position transducer (main valve)5 Nameplate6 O-ring 12 x 2 (ports P, A, B, T, T1)7 O-ring 10 x 2 (ports X, Y)

8 Machined valve contact surface, mounting hole configuration according to ISO 4401-05-05-0-05

Deviates from standard:Ports P, A, B, T, T1 Ø10.5 mmMinimum thread depth: Ferrous metal 1.5 x Ø

Non-ferrous 2 x ØSubplates, see Technical Data Sheet RE 45055Valve fastening bolts (order separately)The following valve fastening bolts are recommended:4 cheese-head bolts ISO 4762-M6x40-10.9-N67F821 70(galvanized in accordance with Bosch standard N67F821 70) Tightening torque MA = 11+3 NmMaterial no. 2910151209

Required surface qualityof mating component

T TA P BX Y

77

4 7 6 5 3

167

185

Pg 7

M16x1,5

102

81

195

49

39

33

ø6,6

13

12

Pg 7

1 2

70

8

5

30

24

8

72

P

T T1A B

F2F1

X Y

F3F4

25

13

104

0,01/100

Rzmax 4



1 Pilot valve2 O-ring 9.25 x 1.78 (ports P, A, B, T)3 Main valve4 Inductive position transducer (main valve)5 Nameplate6 O-ring 23 x 2.5 (ports P, A, B, T)7 O-ring 9 x 2 (ports X, Y, C1, C2)



Deviates from standard:Ports P, A, B, T Ø 20 mmMinimum thread depth: Ferrous metal 1.5 x Ø

Non-ferrous 2 x ØSubplates, see Technical Data Sheet RE 45057Valve fastening bolts (order separately)The following valve fastening bolts are recommended:2 cheese-head bolts ISO 4762-M6x45-10.9-N67F821 70(galvanized in accordance with Bosch standard N67F821 70) Tightening torque MA = 11+3 NmMaterial no. 2910151211 4 cheese-head bolts ISO 4762-M10x50-10.9-N67F821 70(galvanized in accordance with Bosch standard N67F821 70) Tightening torque MA = 50+10 NmMaterial no. 2910151301

77

4 7 6 5 3

225

302

150

A B Y

9549

35

30

25

1 2

34

ø3 3

94

185

Pg 7

M16x1,5

13

12

Pg 7 209

8

96

A B

T P

Y

C2C1X

F3F6G2F4

F2

G1

F1

F5

26

13

152 0,01/100

Rzmax 4


Unit dimensions NG25/27 (nominal dimensions in mm)

1 Pilot valve2 O-ring 9.25 x 1.78 (ports P, A, B, T)3 Main valve4 Inductive position transducer (main valve)5 Nameplate6 O-ring (ports P, A, B, T)

NG25: 28 x 3NG27: 34.6 x 2.62

7 O-ring 15 x 2.5 (ports X, Y, C1, C2)


Deviates from standard:NG25: Ports P, A, B, T Ø 25 mmNG27: Ports P, A, B, T Ø 32 mmMinimum thread depth: Ferrous metal 1.5 x Ø

Non-ferrous 2 x ØSubplates, see Technical Data Sheet RE 45059Valve fastening bolts (order separately)The following valve fastening bolts are recommended:6 cheese-head bolts ISO 4762-M12x60-10.9-N67F821 70(galvanized in accordance with Bosch standard N67F821 70) Tightening torque NG25 MA = 90+30 Nm,

NG27 MA = 90±15 NmMaterial no. 2910151354


77

4 7 6 5 3

305382

190

A BX

125

4945

5718

ø13

43

ø66

11823

912

185

Pg 7

M16x1,5

13

Pg 7

1 2

8

118

A BX

T P Y

F3F6G2F4

F2

G1

F1

F5

20

13

194

C2C1

0,01/100

Rzmax 4



1 Pilot valve2 O-ring 9.25 x 1.78 (ports P, A, B, T)3 Main valve4 Inductive position transducer (main valve)5 Nameplate6 O-ring 53.57 x 3.53 (ports P, A, B, T)7 O-ring 15 x 2.5 (ports X, Y)


Deviates from standard:Ports P, A, B, T Ø 48 mmMinimum thread depth: Ferrous metal 1.5 x Ø

Non-ferrous 2 x ØSubplates, see Technical Data Sheet RE 45060Valve fastening bolts (order separately)The following valve fastening bolts are recommended:6 cheese-head bolts ISO 4762-M20x90-10.9-N67F821 70(galvanized in accordance with Bosch standard N67F821 70) Tightening torque MA = 450+110 NmMaterial no. 2910151532


125

4 7 6 5 3

458320

A BX

4929

90

69

60

5

200

225

368

12

185

Pg 7M16x1,5

13

Pg 7

1 2

ø6

ø2143,2

8

203

A BX

T P Y

F3F6G2

F4

F2G1

F1 F5

45

22

324 0,01/100

Rzmax 4


Bosch Rexroth AGHydraulicsZum 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 information set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be reproduced or given to third parties without its consent.The data specified above only serve to describe the product. No state- ments 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.

Notes

4/3-way servo solenoid directional control valves, pilot operated, … · 2019. 2. 28. · re...

Documents