1/22
Proportional directional valves,
pilot operated,
with electrical position feedback
and integrated electronics (OBE)
Type 4WRKE
Size 10 to 35
Component series 3X
Maximum operating pressure 350 bar
Maximum flow 3,000 l/min
RE 29075/08.13
Replaces: 08.04
Table of contents
Contents Page
Features 1
Ordering code 2
Symbols 3
Function, section, valve particularities 4, 5
Technical data 6, 7
Block diagram of the integrated electronics (OBE) 8
Characteristic curves 9 ... 14
Dimensions 15 ... 20
Accessories 21
Features
– Pilot operated 2-stage proportional directional valve with
electrical position feedback of the main control spool and
integrated electronics (OBE)
– Control of flow direction and size of a flow
– Operation by means of proportional solenoids
– Subplate mounting:
Porting pattern according to ISO 4401
– Electrical position feedback
– Spring-centered main control spool
– Pilot control valve:
Single-stage proportional directional valve
– Main stage with position control
H/A/D 6512
Inhalt
Table of contents 1
Features 1
Ordering code 2
Symbols 3
Function, section 4
Function, section, valve particularities 5
Technical data (for applications outside these parameters,
please consult us!) 6
Technical data (for applications outside these parameters,
please consult us!)) 7
Block diagram of the integrated electronics (OBE) 8
Characteristic curves (measured with HLP46,
oil
= 40 °C ±5
°C) 9
Characteristic curves: Size 10 (measured with HLP46,
oil
= 40
°C ±5 °C) 10
Characteristic curves: Size 16 (measured with HLP46,
oil
= 40
°C ±5 °C) 11
Characteristic curves: Size 25 and 27 (measured with HLP46,
il
= 40 °C ±5 °C) 12
Characteristic curves: Size 32 (measured with HLP46,
oil
= 40
°C ±5 °C) 13
Characteristic curves: Size 35 (measured with HLP46,
oil
= 40
°C ±5 °C) 14
Dimensions: Size 10 (dimensions in mm) 15
Dimensions: Size 16 (dimensions in mm) 16
Dimensions: Size 25 (dimensions in mm) 17
Dimensions: Size 27 (dimensions in mm) 18
Dimensions: Size 32 (dimensions in mm) 19
Dimensions: Size 35 (dimensions in mm) 20
Dimensions 21
Accessories (not included in the scope of delivery) 21
Notes 22
Notes 23
2/22 Bosch Rexroth AG Hydraulics
4WRKE RE 29075/08.13
Ordering code
Electrically operated
2-stage proportional
directional valve in
4-way version with inte-
grated electronics
Size 10 = 10
Size 16 = 16
Size 25 = 25
Size 27 = 27
Size 32 = 32
Size 35 = 35
Symbols
= E
= E1-
= E3-
= W6-
= W8-
= R
= R3-
= EA
1)
= W6A
= EB
1)
= W6B
With symbol E1-, W8-:
P → A :
P → B:
q
V
q
V
/2
B → T:
A → T:
q
V
/2
q
V
With symbol R; R3:
P → A :
P → B :
q
V
q
V
/2
B → P:
A → T:
q
V
/2
q
V
Notice:
In the zero position, spools W6-, W8-
and R3- have a connection from A to T
and B to T with approx. 2% of the rel-
evant nominal cross-section.
1)
Examples: Spool with spool position "a" (P → B) ordering
code ..EA.. or W6A
Spool with spool position "b" (P → A) ordering code ..EB..
or W6B
2)
Only E and W6- available with characteristic curve form L (linear)
4WRKE 3X 6E G24 K31 D3
*
Further details
in the plain text
M =
NBR seals
V = FKM seals
D3 = With pressure
reducing valve
ZDR 6 DP0-4X/40YM-W80
(non-adjustable)
Electronics interface
C1 = Command value/
actual value ±10 mA
A1 =
4)
Command value/
actual value ±10 V
F1 = Command value/
actual value 4 to 20 mA
Electrical connection
K31 = Without mating connector
with connector
according to DIN EN 175201-804
Mating connector – separate order
see page 21
Pilot oil supply and drain
no code = Pilot oil supply external,
pilot oil drain external
E = Pilot oil supply internal,
pilot oil drain external
ET = Pilot oil supply internal,
pilot oil drain internal
T = Pilot oil supply external,
pilot oil drain internal
Supply voltage
G24 = Direct voltage 24 V
6E = Proportional solenoid with detachable 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
Rated flow
25 =
2)
or 50 =
3)
or 100 = Size 10
125 =
3)
or 150 =
3)
or 200 = or 220 = Size 16
220 =
3)
or 350 = Size 25
500 = Size 27
400 = or 600 = Size 32
1000 = Size 35
3)
Only E1- and W8- available with characteristic curve form L (linear)
4)
When replacing the component series 2X with component
series 3X the electronics interface is to be defined with A5
(enable signal at pin C)
Hydraulics Bosch Rexroth AG
RE 29075/08.13 4WRKE
3/22
Symbols
Detailed
Simplified
Example:
1 Pilot control valve type 4WRAP 6…
2 Main valve
3 Pressure reducing valve
type ZDR 6 DP0-4X/40YM-W80
4 Integrated electronics (OBE)
Example:
Pilot oil supply external
Pilot oil drain external
4/22 Bosch Rexroth AG Hydraulics
4WRKE RE 29075/08.13
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 dimensions have been optimized for use
as a pilot control valve for proportional directional valves
type 4WRKE.
The proportional solenoids are pressure-tight, wet-pin AC so-
lenoids with detachable coils. They transfer electric current
proportionally into mechanical force. An increase of the cur-
rent strength results in a correspondingly higher magnetic
force. The set magnetic force remains the same during the to-
tal control stroke.
The pilot control valve mainly consists of the housing (1), the
proportional solenoid (2 and 3), the valve control spool (4)
and springs (5 and 6).
In a non-actuated state both actuators are connected to the
tank. If one of the two solenoids (2 or 3) is excited, the mag-
netic force will move the valve control spool (4) towards the
spring (5 or 6).
After having overcome the overlap area, the connection of
one of the two actuators is blocked and the connection to
the pressroom is made. There is a flow from P to the control
chamber of the main stage.
Type 4WRAP 6 W7.3X/G24…
Hydraulics Bosch Rexroth AG
RE 29075/08.13 4WRKE
5/22
Function, section, valve particularities
Valves of type 4WRKE are 2-stage proportional directional valves.
They control the of flow direction and size.
The main stage is position-controlled so that the control spool
position is independent from flow forces also in the case of
bigger flows.
The valves mainly consist of the pilot control valve (1), the
housing (8), the main control spool (7), the covers (5 and 6),
the centering spring (4), the inductive position transducer (9)
and the pressure reducing valve (3).
If there is no input signal, the main control spool (7) will be
kept in the central position by the centering spring (4). Both
control chambers in the covers (5 and 6) are connected to the
tank via the valve control spool (2).
The main control spool (7) is connected to suitable control
electronics via the inductive position transducer (9). Both
the change of position of the main control spool (7) and the
change of the command value at the junction summing of the
amplifier create a differential voltage.
During the comparison of command and actual value a pos-
sible control deviation is determined via the electronics and
the proportional solenoid of the pilot control valve (1) is sup-
plied with current.
The current induces a force in the solenoid which operates
the control spool via a plunger in a row. The flow which has
been released via the control cross sections causes an ad-
justment of the main control spool.
The main control spool (7) with the core of the inductive po-
sition transducer (9) attached to it is displaced until the ac-
tual value corresponds to the command value. In a controlled
state the main control spool (7) is balanced and kept in this
control position.
The control spool stroke and the control opening change pro-
portionally to the command value.
The control electronics are integrated in the valve. By adjust-
ing valve and electronics, the deviation in series production of
the devices is kept low.
The tank lines must not be allowed to run empty; a preload
valve is to be installed in the case of a corresponding installa-
tion condition (counterbalance pressure approx. 2 bar).
Plug screw Pg7
Valve particularities
– The 2nd stage is mainly built up from components of our
proportional valves.
– The zero point adjustment at "zero point main stage"
is made at the factory and can be adjusted in a range
of ±30% of the nominal stroke via a potentiometer in the
control electronics. Access in the integrated control elec-
tronics by removing a plug screw on the front side of the
cover housing.
– When the pilot control valve or the control electronics are
exchanged, they are to be re-adjusted. All adjustments may
be implemented by instructed experts only.
Zero point main stage ±30%
max. adjustment option
Notice!
Changes in the zero point may result in damage to
the system and may only be implemented by instruct
-
ed specialists!
6/22 Bosch Rexroth AG Hydraulics
4WRKE RE 29075/08.13
Technical data (for applications outside these parameters, please consult us!)
general
Sizes Size 10 16 25 27 32 35
Installation position and commissioning information 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
Sine test according to DIN EN 60068-2-6:2008
1)
10 cycles, 10...2,000..10 Hz with logarithmic frequency
changing speed of 1 oct./min,
5 to 57 Hz, amplitude 1.5 mm (p-p),
57 to 2,000 Hz, amplitude 10 g, 3 axes
Random test according to DIN EN 60068-2-64:2009
1)
20…2,000 Hz, amplitude 0.05 g
2
/Hz (10 g
RMS
)
3 axes, testing time 30 min per axis
Shock test according to DIN EN 60068-2-27:2010
1)
Half sine 15 g / 11 ms, 3 times in positive and 3 times in
negative direction per axis, 3 axes
Humid heat, cyclic according to DIN EN 60068-2-30:2006 Variant 2
+25 °C to +55 °C, 90% to 97% relative humidity,
2 cycles with 24 hours each
hydraulic (measured at p = 100 bar with HLP46 at 40 °C ± 5 °C)
Operating
pressure
Pilot control valve
Pilot oil supply bar 25 to 315
Main valve, connection P, A, B bar
Up to 315
Up to 350 Up to 350 Up to 210
Up to 350
Up to 350
Return flow
pressure
Connection T
Pilot oil drain,
internal
bar Static < 10 (pilot control valve)
Pilot oil drain,
external
bar
Up to 315
Up to 250
Up to 250
Up to 210 Up to 250 Up to 250
Connection Y bar Static < 10 (pilot control valve)
Rated flow q
Vnom
±10% with Δp = 10 bar
Δp = valve pressure differential
l/min
–
25
50
100
125
150
200
220
–
–
220
350
–
–
–
500
–
–
400
600
–
–
–
1000
Recommended maximum flow l/min 170 460 870 1000 1600 3000
Pilot oil flow at port X and/or Y with stepped input
signal from 0 to 100% (315 bar)
l/min 4.1 8.5 11.7 11.7 13.0 13.0
Hydraulic fluid See table page 7
Maximum admissible degree of contamination of the hydraulic
fluid - cleanliness class according to ISO 4406 (c)
Pilot control valve: Class 17/15/12
1)
Main stage: Class 20/18/15
1)
Hydraulic fluid temperature range °C –20 to +80, preferably +40 to +50
Viscosity range mm
2
/s 20 to 380, preferably 30 to 45
Hysteresis % ≤ 1
Response sensitivity % ≤ 0.5
1)
The cleanliness classes stated for the components need
to be maintained in hydraulic systems. Effective filtration
prevents faults and simultaneously increases the life cycle
of the components.
For the selection of the filters see
www.boschrexroth.com/filter
1)
The information on mechanical load applies to the fastening
level of the integrated valve electronics.
Hydraulics Bosch Rexroth AG
electrical
Voltage type Direct voltage
Signal type Analog
Maximum power W 72 (average = 24 W)
Electrical connection Mating connector according to DIN EN 175201-804
Protection class of the valve according to EN 60529 IP65 with mating connector mounted and locked
Control electronics Integrated in the valve, see page 8
Hydraulic fluid Classification Suitable sealing materials Standards
Mineral oils and related hydrocarbons HL, HLP NBR, FKM DIN 51524
Flame-resistant – containing water
HFC (Fuchs HYDROTHERM
46M, Petrofer Ultra Safe 620)
NBR ISO 12922
Phosphoric acid ester HFD-R FKM
Important information on hydraulic fluids!
– For more information and data on the use of other hydrau-
lic fluids refer to data sheet 90220 or contact us!
– There may be limitations regarding the technical valve
data (temperature, pressure range, life cycle, maintenance
intervals, etc.)!
– The flash point of the process and operating medium used
must be 40 K greater than the maximum solenoid sur-
face temperature.
– Flame-resistant – containing water: Maximum pressure
differential per control edge 175 bar. Pressure pre-loading
at the tank port > 20% of the pressure differential; other-
wise, increased cavitation.
– Life cycle as compared to operation with mineral oil HL,
HLP 50% to 100%
RE 29075/08.13 4WRKE
7/22
Technical data (for applications outside these parameters, please consult us!))
Connector pin assignment Contact Signal with A1 Signal with F1 Signal with A5
Supply voltage A 24 VDC (18 to 35 VDC); I
max
= 1.5 A; impulse load ≤ 3 A
B 0 V
Reference (actual value) C Reference potential for actual value (contact "F") Enable 4 to 24 V
Differential amplifier input D ±10 V 4 to 20 mA ±10 V
(Command value) E 0 V reference potential to pin D 0 V reference poten-
tial for pin D and F
Measuring output (actual value) F ±10 V 4 to 20 mA ±10 V
PE Connected to cooling element and valve housing
Command value: Reference potential at E and positive command value at D result in flow from P → A and B → T.
Reference potential at E and negative command value at D result in flow from P → B and A → T.
Connection cable: Recommendation: – Up to 25 m line length: Type LiYCY 7 x 0.75 mm
2
– Up to 50 m line length: Type LiYCY 7 x 1.0 mm
2
Only connect the shield to PE on the supply side.
Notice: Electric signals taken out via valve electronics (e.g. actual value) must not be used for switch-
ing off safety-relevant machine functions!
8/22 Bosch Rexroth AG Hydraulics
4WRKE RE 29075/08.13
Block diagram of the integrated electronics (OBE)
Command
values
Making cur-
rent limiter
Enable
1)
Reference for output
2)
Outputs
Monitoring
Logic
pilot current
Controller
Pilot current B
Pilot current A
Current
controller
Oscillator
Cable break
detection
Zero point
Output
stage A
Output
stage B
Solenoid A
Solenoid B
Position transducer
main stage
1)
Only available for A5 electronics
2)
Only available for A1 and F1 electronics
Current
controller
Hydraulics Bosch Rexroth AG
RE 29075/08.13 4WRKE
9/22
Control spool with characteristic curve L
Command value in % →
Flow in % →
Flow command value function with e.g.
P → A / B → T 10 bar valve pressure differential or
P → A or A → T 5 bar per control edge
Command value in % →
Flow in % →
Control spool with characteristic curve P
Control spool E, W, and R
Characteristic curves (measured with HLP46, ϑ
oil
= 40 °C ±5 °C)
10/22 Bosch Rexroth AG Hydraulics
4WRKE RE 29075/08.13
Flow/load function with maximum valve opening
(tolerance ±10%)
Signal change in %
Time in ms →
Stroke in % →
Transition function with stepped electric input signals
Valve pressure differential in bar →
Flow in l/min →
1 =
Recommended
flow limitation (flow
velocity 30 m/s) in
the valve connec-
tion bores
Measured with
p
S
= 100 bar
Characteristic curves: Size 10 (measured with HLP46, ϑ
oil
= 40 °C ±5 °C)
Hydraulics Bosch Rexroth AG
RE 29075/08.13 4WRKE
11/22
Flow/load function with maximum valve opening
(tolerance ±10%)
Signal change in %
Time in ms →
Stroke in % →
Transition function with stepped electric input signals
Valve pressure differential in bar →
Flow in l/min →
Measured with
p
S
= 100 bar
1 =
Recommended
flow limitation (flow
velocity 30 m/s) in
the valve connec-
tion bores
Characteristic curves: Size 16 (measured with HLP46, ϑ
oil
= 40 °C ±5 °C)
12/22 Bosch Rexroth AG Hydraulics
4WRKE RE 29075/08.13
Flow/load function with maximum valve opening
(tolerance ±10%)
Signal change in %
Time in ms →
Stroke in % →
Transition function with stepped electric input signals
Valve pressure differential in bar →
Flow in l/min →
Measured with
p
S
= 100 bar
1 =
Recommended
flow limitation (flow
velocity 30 m/s) in
the valve connec-
tion bores
500 - size 27
350 - size 25
220 - size 25
Characteristic curves: Size 25 and 27 (measured with HLP46, ϑ
oil
= 40 °C ±5 °C)
Hydraulics Bosch Rexroth AG
RE 29075/08.13 4WRKE
13/22
Flow/load function with maximum valve opening
(tolerance ±10%)
Signal change in %
Time in ms →
Stroke in % →
Transition function with stepped electric input signals
Valve pressure differential in bar →
Flow in l/min →
Measured with
p
S
= 100 bar
1 = Recommended
flow limitation
(flow veloc-
ity 30 m/s) in
the valve con-
nection bores
Characteristic curves: Size 32 (measured with HLP46, ϑ
oil
= 40 °C ±5 °C)
14/22 Bosch Rexroth AG Hydraulics
4WRKE RE 29075/08.13
Flow/load function with maximum valve opening
(tolerance ±10%)
Signal change in %
Time in ms →
Stroke in % →
Transition function with stepped electric input signals
Valve pressure differential in bar →
Flow in l/min →
Measured with
p
S
= 100 bar
1 =
Recommended
flow limitation (flow
velocity 30 m/s) in
the valve connec-
tion bores
Characteristic curves: Size 35 (measured with HLP46, ϑ
oil
= 40 °C ±5 °C)
Hydraulics Bosch Rexroth AG
Required surface quality of the
valve contact surface
RE 29075/08.13 4WRKE
15/22
9 Main valve
10 Integrated electronics (OBE)
11 Identical seal rings for connection A, B, P, T
12 Identical seal rings for connection X, Y
13
Processed valve contact surface, porting pattern accord-
ing to ISO 4401-05-05-0-05 (connection X, Y, as required)
1 Pilot control valve
2 Mating connector "A", color gray
3 Mating connector "B", color black
4 Space required for connection cable and to remove the
mating connector
5 Wiring
6 Mating connector, separate order, see page 21
7 Pressure reducing valve
8 Name plate
Subplates and valve mounting screws see page 21
Dimensions: Size 10 (dimensions in mm)
16/22 Bosch Rexroth AG Hydraulics
4WRKE RE 29075/08.13
10 Integrated electronics (OBE)
11 Identical seal rings for connection A, B, P, T
12 Identical seal rings for connection X, Y
13
Processed valve contact surface, porting pattern accord-
ing to ISO 4401-07-07-0-05 (connection X, Y as required)
deviating from the standard:
- Connection A, B, T and P Ø 20mm
14 Locking pin
1 Pilot control valve
2 Mating connector "A", color gray
3 Mating connector "B", color black
4 Space required for connection cable and to remove the
mating connector
5 Wiring
6 Mating connector, separate order, see page 21
7 Pressure reducing valve
8 Name plate
9 Main valve
Required surface quality of the
valve contact surface
Subplates and valve mounting screws see page 21
Dimensions: Size 16 (dimensions in mm)
Hydraulics Bosch Rexroth AG
Required surface quality of the
valve contact surface
RE 29075/08.13 4WRKE
17/22
10 Integrated electronics (OBE)
11 Identical seal rings for connection A, B, P, T
12 Identical seal rings for connection X, Y
13
Processed valve contact surface, porting pattern accord-
ing to ISO 4401-08-08-0-05 (connection X, Y, as required)
14 Locking pin
1 Pilot control valve
2 Mating connector "A", color gray
3 Mating connector "B", color black
4 Space required for connection cable and to remove the
mating connector
5 Wiring
6 Mating connector, separate order, see page 21
7 Pressure reducing valve
8 Name plate
9 Main valve
Subplates and valve mounting screws see page 21
Dimensions: Size 25 (dimensions in mm)
18/22 Bosch Rexroth AG Hydraulics
Required surface quality of the
valve contact surface
4WRKE RE 29075/08.13
10 Integrated electronics (OBE)
11 Identical seal rings for connection A, B, P, T
12 Identical seal rings for connection X, Y
13
Processed valve contact surface, porting pattern accord-
ing to ISO 4401-08-08-0-05 (connection X, Y as required)
deviating from the standard:
- Connection A, B, T and P Ø 32 mm
14 Locking pin
1 Pilot control valve
2 Mating connector "A", color gray
3 Mating connector "B", color black
4 Space required for connection cable and to remove the
mating connector
5 Wiring
6 Mating connector, separate order, see page 21
7 Pressure reducing valve
8 Name plate
9 Main valve
Subplates and valve mounting screws see page 21
Dimensions: Size 27 (dimensions in mm)
Hydraulics Bosch Rexroth AG
Required surface quality of the
valve contact surface
RE 29075/08.13 4WRKE
19/22
10 Integrated electronics (OBE)
11 Identical seal rings for connection A, B, P, T
12 Identical seal rings for connection X, Y
13
Processed valve contact surface, porting pattern accord-
ing to ISO 4401-10-09-0-05 (connection X, Y as required)
deviating from the standard:
- Connection, B, T and P Ø 38 mm
14 Locking pin
1 Pilot control valve
2 Mating connector "A", color gray
3 Mating connector "B", color black
4 Space required for connection cable and to remove the
mating connector
5 Wiring
6 Mating connector, separate order, see page 21
7 Pressure reducing valve
8 Name plate
9 Main valve
Subplates and valve mounting screws see page 21
Dimensions: Size 32 (dimensions in mm)
20/22 Bosch Rexroth AG Hydraulics
Required surface quality of the
valve contact surface
4WRKE RE 29075/08.13
10 Integrated electronics (OBE)
11 Identical seal rings for connection A, B, P, T
12 Identical seal rings for connection X, Y
13
Processed valve contact surface, porting pattern accord-
ing to ISO 4401-10-09-0-05 (connection X, Y as required)
deviating from the standard:
- Connection A, B, T and P Ø 50 mm
14 Locating pins
1 Pilot control valve
2 Mating connector "A", color gray
3 Mating connector "B", color black
4 Space required for connection cable and to remove the
mating connector
5 Wiring
6 Mating connector, separate order, see page 21
7 Pressure reducing valve
8 Name plate
9 Main valve
Subplates and valve mounting screws see page 21
Dimensions: Size 35 (dimensions in mm)
Hydraulics Bosch Rexroth AG
RE 29075/08.13 4WRKE
21/22
Subplates Data sheet
Size 10 45054
Size 16 45056
Sizes 25 and 27 45058
Sizes 32 and 35 45060
Hexagon socket head cap screws Material number
Size 10 4x ISO 4762 - M6 x 45 - 10.9-flZn-240h-L
Tightening torque M
A
= 13.5 Nm ±10%
or
4x ISO 4762 - M6 x 45 - 10.9
Tightening torque M
A
= 15.5 Nm ±10%
R913000258
Size 16 2x ISO 4762 - M6 x 60 - 10.9-flZn-240h-L
Tightening torque M
A
= 12.2 Nm ±10%
4x ISO 4762 - M10 x 60 - 10.9-flZn-240h-L
Tightening torque M
A
= 58 Nm ±20%
or
2x ISO 4762 - M6 x 60 - 10.9
Tightening torque M
A
= 15.5 Nm ±10%
4x ISO 4762 - M10 x 60 - 10.9
Tightening torque M
A
= 75 Nm ±20%
R913000115
R913000116
Sizes 25 and 27 6x ISO 4762 - M12 x 60 - 10.9-flZn-240h-L
Tightening torque M
A
= 100 Nm ±20%
or
6x ISO 4762 - M12 x 60 - 10.9
Tightening torque M
A
= 130 Nm ±20%
R913000121
Size 32 6x ISO 4762 - M20 x 80 - 10.9-flZn-240h-L
Tightening torque M
A
= 340 Nm ±20%
or
6x ISO 4762 - M20 x 80 - 10.9
Tightening torque M
A
= 430 Nm ±20%
R901035246
Size 35 6x ISO 4762 - M20 x 100 - 10.9-flZn-240h-L
Tightening torque M
A
= 465 Nm ±20%
or
6x ISO 4762 - M20 x 100 - 10.9
Tightening torque M
A
= 610 Nm ±20%
R913000386
Notice: The tightening torque of the hexagon socket head cap screws refers to the maximum operating pressure!
Dimensions
Accessories (not included in the scope of delivery)
Mating connectors Material number
Mating connector for high-
response valve
DIN EN 175201-804, see data sheet 08006 e.g. R900021267 (plastic)
e.g. R900223890 (metal)
22/22 Bosch Rexroth AG Hydraulics
Bosch Rexroth AG
Industrial Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone +49 (0) 93 52 / 18-0
documentation@boschrexroth.de
www.boschrexroth.de
4WRKE RE 29075/08.13
© This document, as well as the data, specifications and other informa-
tion 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 applica-
tion 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
Hydraulics Bosch Rexroth AG
Bosch Rexroth AG
Industrial Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone +49 (0) 93 52 / 18-0
documentation@boschrexroth.de
www.boschrexroth.de
RE 29075/08.13 4WRKE
23/22
© This document, as well as the data, specifications and other informa-
tion 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 applica-
tion 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
24/22 Bosch Rexroth AG Hydraulics
Bosch Rexroth AG
Industrial Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone +49 (0) 93 52 / 18-0
documentation@boschrexroth.de
www.boschrexroth.de
4WRKE RE 29075/08.13
© This document, as well as the data, specifications and other informa-
tion 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 applica-
tion 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.
