1/22
4/2 and 4/3 proportional directional
valves, direct operated,
with electrical position feedback,
without/with integrated electronics (OBE)
Type 4WRE and 4WREE
Size 6 and 10
Component series 2X
Maximum operating pressure 315 bar
Maximum flow: 80 l/min (size 6)
180 l/min (size 10)
RE 29061/11.12
Replaces: 05.12
Table of contents
Contents Page
Features 1
Ordering code 2
Symbols 3
Function, section 4, 5
Technical data 6, 7
Electrical connection, mating connectors 8, 9
Block diagram of the integrated electronics (OBE) for
type 4WREE 10
Characteristic curves 11 to 17
Unit dimensions 18 to 22
Features
– Direct operated proportional directional valve with electri-
cal position feedback and integrated electronics (OBE) with
type 4WREE
– Control of flow direction and size
– Operation by means of proportional solenoids with central
thread and detachable coil
–
For subplate mounting: Porting pattern according to ISO 4401
– Spring-centered control spool
– Control electronics
•Type4WREE:
integrated electronics (OBE) with voltage or current input
(A1 and/or F1)
•Type4WRE(4/3version),separateorder:
- digital and analog amplifier in Euro-card format
- analog amplifier in modular design
•Type4WRE…A(4/2version),separateorder:
- analog amplifier in modular design
Information on available spare parts:
www.boschrexroth.com/spc
Inhalt
Table of contents 1
Features 1
Ordering code 2
Symbols 3
Function, section 4
Function, section 5
Technical data (For applications outside these parameters
please consult us!) 6
Technical data (For applications outside these parameters
please consult us!) 7
Electrical connection, mating connectors (dimensions in mm) 8
Electrical connection, mating connectors (dimensions in mm) 9
Integrated electronics (OBE) type 4WREE 10
Characteristic curves: Type 4WREE (measured with HLP46,
Oil
= 40 °C ± 5 °C) Size 6 and 10
11
Characteristic curves: Type 4WREE (measured with HLP46,
Oil
= 40 °C ± 5 °C) Size 6 and 10
12
Characteristic curves: Type 4WREE (measured with HLP46,
Oil
= 40 °C ± 5 °C and p = 100 bar) Size 612
Characteristic curves: Type 4WREE (measured with HLP46,
Oil
= 40 °C ± 5 °C and p = 100 bar) Size 6
13
Characteristic curves: Type 4WREE (measured with HLP46,
Oil
= 40 °C ± 5 °C and p = 100 bar) Size 10
14
Transition function with stepped electric input signals: Type
4WREE Size 6
(measured with HLP46,
Oil
= 40 °C ± 5 °C and p
s
= 10 bar) 15
Frequency response characteristic curves: Type 4WREE
(measured with HLP46,
Oil
= 40 °C ± 5 °C, p
s
= 10 bar) Size 6
15
Transition function with stepped electric input signals: Type
4WREE Size 10
(measured with HLP46,
Oil
= 40 °C ± 5 °C and p
s
= 10 bar) 16
Frequency response characteristic curves: Type 4WREE
(measured with HLP46, ϑ
Oil = 40 °C ± 5 °C,
p
s = 10 bar)
Size 10
16
Flow: Type 4WREE (measured with HLP46,
Oil
= 40 °C ± 5 °C)
Size 6
17
Flow: Type 4WREE (measured with HLP46,
Oil
= 40 °C ± 5 °C)
Size 10
17
Unit dimensions: Type 4WRE (dimensions in mm) Size 6
18
Unit dimensions: Type 4WREE (dimensions in mm) Size 6
19
Unit dimensions: Type 4WRE (dimensions in mm) Size 10
20
Unit dimensions: Type 4WREE (dimensions in mm) size 10
21
Unit dimensions 22
2/22 Bosch Rexroth AG Hydraulics
4WRE; 4WREE RE 29061/11.12
Ordering code
Further details in
the plain text
Seal material
V = FKM seals
1)
Electronic interface
A1 = Command value ±10 V
F1 = Command value 4 to 20 mA
no code = Type 4WRE
Electrical connection
Type 4WRE:
K4 = Without mating connector,
with connector according
to DIN EN 175301-803
Mating connector (solenoid, position
transducer), separate order, see page 8
Type 4WREE:
K31 = Without mating connector,
with connector according
to DIN EN 175201-804
Mating connector – separate order,
see page 9
Supply voltage
G24 = Direct voltage 24 V
2X = 20 to 29
(20 to 29: unchanged installation and
connection dimensions)
Rated flow at valve pressure differential Δp = 10 bar
Size 6
04 = 4 l/min
08 = 8 l/min
16 = 16 l/min
32 = 32 l/min
Size 10
25 = 25 l/min
50 = 50 l/min
75 = 75 l/min
4WRE 2X G24 V
*
Without integrated
electronics (OBE) = no code
With integrated
electronics (OBE) = E
Size 6 = 6
Size 10 = 10
Control spool symbols
= E
E1–
= V
V1–
= W
W1–
= EA
= WA
With symbol E1–, V1– and W1–:
P→A:q
V max
B→T:q
V
/2
P→B:q
V
/2 A→T:q
V max
Notice:
In the zero position, spools W and WA have a con-
nection from A to T and B to T with approx. 3 % of the
relevant nominal cross-section.
1)
Design SO660 with NBR seals at the valve connection surface
Hydraulics Bosch Rexroth AG 3/22

RE 29061/11.12 4WRE; 4WREE
Symbols
Proportional directional valve without integrated electronics
Type4WRE…
Type4WRE…A…
Proportional directional valve with integrated electronics
Type4WREE…
Type4WREE…A…
4/22 Bosch Rexroth AG Hydraulics
4WRE; 4WREE RE 29061/11.12
Function, section
The 4/2 and 4/3 proportional directional valves are designed
as direct operated devices in plate design. Operation is effect-
ed by proportional solenoids with central thread and detach-
able coil. The solenoids are controlled by external electronics.
Set-up:
The valve basically consists of:
– Housing (1) with connection surface
– Control spool (2) with compression springs (3 and 4) and
spring plate (5 and 6)
– Solenoids (7 and 8) with central thread
– Position transducer (9)
Function:
– With de-energized solenoids (7 and 8), central position
of the control spool (2) by compression springs (3 and 4)
between spring plates (5 and 6)
– Direct operation of the control spool (2) by controlling a pro-
portional solenoid, e.g. solenoid "b" (8)
→ Displacementofthecontrolspool(2)totheleftpropor-
tional to the electric input signal
→ ConnectionfromPtoAandBtoTviaorifice-type
cross-sections with progressive flow characteristic
– Switching off of the solenoid (8)
→ Thecompressionspring(3)bringsthecontrolspool(2)
back into the central position
In the de-energized condition, the control spool (2) is held in
a mechanical central position by the return springs. With con-
trol spool symbol "V", this position does not correspond to the
hydraulic central position! When the electric valve control loop
is closed, the control spool is positioned in the hydraulic cen-
tral position.
Important note!
The PG fitting (11) must not be opened. Mechanical ad-
justment of the adjustment nut located below is prohibit-
ed and damages the valve!
Notice!
Due to the design principle, internal leakage is inherent to the
valves, which may increase over the life cycle.
Type 4WRE …-2X/…
Notice!
The tank line must not be allowed to run empty. With corres-
ponding installation conditions, a pre-charge valve (pre-char-
ging pressure approx. 2 bar) is to be installed.
 

 







Valve with 2 spool positions:(Type4WRE…A…)
The function of this valve design basically corresponds to the
valve with three spool positions. The 2 spool position valves
are, however, only equipped with solenoid "a" (7). Instead of
the 2nd proportional solenoid, there is a plug screw (10).
Hydraulics Bosch Rexroth AG 5/22
RE 29061/11.12 4WRE; 4WREE
 

 







Function, section
Type 4WREE …-2X/…
Valve with 2 spool positions:(Type4WREE…A…)
The function of this valve design basically corresponds to the
valve with three spool positions. The 2 spool position valves
are, however, only equipped with solenoid "a" (7). Instead of
the 2nd proportional solenoid, there is a plug screw (10).
The 4/2 and 4/3 proportional directional valves are designed
as direct operated devices in plate design. Operation is ef-
fected by proportional solenoids with central thread and de-
tachable coil. The solenoids are controlled by the internal
electronics.
Set-up:
The valve basically consists of:
– Housing (1) with connection surface
– Control spool (2) with compression springs (3 and 4) and
spring plate (5 and 6)
– Solenoids (7 and 8) with central thread
– Position transducer (9)
– Integrated electronics (13)
– Electric zero point adjustment (12) accessible via Pg7
Function:
– With de-energized solenoids (7 and 8), central position
of the control spool (2) by compression springs (3 and 4)
between spring plates (5 and 6)
– Direct operation of the control spool (2) by controlling a pro-
portional solenoid, e.g. solenoid "b" (8)
→ Displacementofthecontrolspool(2)totheleftpropor-
tional to the electric input signal
→ ConnectionfromPtoAandBtoTviaorifice-typecross-
sections with progressive flow characteristic
– Switching off of the solenoid (8)
→ Thecompressionspring(3)bringsthecontrolspool(2)
back into the central position
In the de-energized condition, the control spool (2) is held in
a mechanical central position by the return springs. With con-
trol spool symbol "V", this position does not correspond to the
hydraulic central position! When the electric valve control loop
is closed, the control spool is positioned in the hydraulic cen-
tral position.
Important note!
The PG fitting (11) must not be opened. Mechanical ad-
justment of the adjustment nut located below is prohibit-
ed and damages the valve!
Notice!
Due to the design principle, internal leakage is inherent to the
valves, which may increase over the life cycle.
Notice!
The tank line must not be allowed to run empty. With cor-
responding installation conditions, a pre-charge valve (pre-
charging pressure approx. 2 bar) is to be installed.
6/22 Bosch Rexroth AG Hydraulics
4WRE; 4WREE RE 29061/11.12
Technical data (For applications outside these parameters please consult us!)
general
Sizes Size 6 10
Weight – Type 4WRE kg 2.2 6.3
– Type 4WREE kg 2.4 6.5
Installation position Any, preferably horizontal
Ambient temperature range – Type 4WRE °C –20 to +70
– Type 4WREE °C –20 to +50
Storage temperature range °C –20 to +80
MTTF
d
values according to EN ISO 13849 Years 150
1)
(for more information see data sheet 08012)
hydraulic (measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C and p = 100 bar)
Maximum operating
pressure
– Port A, B, P bar 315
– Port T bar 210
Rated flow q
V rated
with Δp = 10 bar l/min 4, 8, 16, 32 25, 50, 75
Recommended maximum flow l/min 80 180
Hydraulic fluid See table below
Hydraulic fluid temperature range °C –20 to +80 (preferably +40 to +50)
Viscosity range mm
2
/s 20 to 380 (preferably 30 to 46)
Maximum admissible degree of contamination of the hydraulic fluid,
cleanliness class according to ISO 4406 (c)
Class 20/18/15
2)
Hysteresis % ≤0.1
Range of inversion % ≤0.05
Response sensitivity % ≤0.05
Zero shift upon change of hydraulic
fluid temperature and operating pressure
%/10 K ≤0.15
%/100 bar ≤0.1
1)
With control spool types E, E1, EA, W, W1, WA; in longitudinal control spool direction, there is sufficient positive overlap
without shock/vibration load; observe the installation orientation with regard to the main direction of acceleration.
2)
The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents
faults and at the same time increases the service life of the components.
For the selection of the filters see www.boschrexroth.com/filter
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
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, service life, mainte-
nance intervals, etc.)!
– The flash point of the process and operating medium used
must be 40 K higher than the maximum solenoid sur-
face temperature.
– Flame-resistant – water-containing: 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 %.
Hydraulics Bosch Rexroth AG 7/22
RE 29061/11.12 4WRE; 4WREE
Technical data (For applications outside these parameters please consult us!)
electric
Size Size 6 10
Voltage type Direct voltage
Solenoid coil
resistance
– Cold value at 20 °C Ω 2.65 4.55
– Maximum hot value Ω 4.05 6.82
Duty cycle % 100
Maximum coil temperature
1)
°C up to 150
Electrical connection – Type 4WRE With connector according to DIN EN 175301-803 and ISO 4400
see page 8 and 9
Mating connector according to DIN EN 175301-803 and ISO 4400
2)
– Type 4WREE With connector DIN EN 175201-804
Mating connector DIN EN 175201-804
2)
Protection class of the valve according to EN 60529 IP65 with mating connector mounted and locked
Control electronics
Type 4WRE 4/3 version
Amplifier in
euro-card format
2)
Digital VT-VRPD-2-2X/V0/0 according to RE 30126
Analog VT-VRPA2-1-1X/V0
according to data sheet 30119
VT-VRPA2-2-1X/V0
according to data sheet 30119
Module amplifier
2)
Analog VT-MRPA2-1
according to data sheet 30219
VT-MRPA2-2
according to data sheet 30219
Type4WRE…A…
4/2 version
Module amplifier
2)
Analog VT-MRPA1-1
according to data sheet 30219
VT-MRPA1-2
according to data sheet 30219
Type 4WREE Integrated in the valve, see page 9
analog command value module VT- SWMA-1-1X/... according to data sheet 29902
analog command value module VT-SWMAK-1-1X/... according to data sheet 29903
analog command value card VT-SWKA-1-1X/... according to data sheet 30255
digital command value card VT-HACD -1-1X/... according to data sheet 30143
Supply voltage Nominal voltage VDC 24
lower limit value V 19.4
upper limit value V 35
Current consumption I
max
A < 2
of the amplifier Pulse current A 3
1)
Due to the temperatures occurring at the surfaces of the
solenoid coils, the European standards ISO 13732-1 and
EN ISO 4413 need to be adhered to!
2)
Separate order
Notice: For information on the environmental simula-
tion testing for the areas EMC (electromagnet-
ic compatibility), climate and mechanical load
see data sheet 29061-U (declaration on envi-
ronmental compatibility).
8/22 Bosch Rexroth AG Hydraulics

























4WRE; 4WREE RE 29061/11.12
Electrical connection, mating connectors (dimensions in mm)
Type 4WRE (without integrated electronics)
Mating connector CECC 75 301-803-A002FA-H3D08-G
according to DIN EN 175301-803 and ISO 4400
Solenoid a, color gray
separate order under the Material no. R901017010
Solenoid b, color black
separate order under the Material no. R901017011
to the amplifier
to the amplifier
Connection to connector Connection to mating connector
Mating connector 4-pole Pg7-G4W1F
separate order under the Material no. R900023126
Connection cable:
Recommendation:
up to 50 m cable length type LiYCY 4 x 0.25 mm
2
Connect shield to PE only on the supply side.
Inductive position transducer
Coil connection
to the amplifier
Ground signal
supply
Signal
Connection to plug-in connector
Ground supply
to the amplifier
Coil
1 Mounting screw M3
Tightening torque M
A
= 0.5 Nm + 0.1 Nm
Hydraulics Bosch Rexroth AG 9/22





RE 29061/11.12 4WRE; 4WREE
Type 4WREE (with integrated electronics (OBE)
Mating connector according to DIN EN 175201-804
separate order under the Material no. R900021267 (plastic version)
Angular design – separate order under the Material no. R900217845
Pin assignment see also block diagram page 10
Mating connector according to DIN EN 175201-804
separate order under the Material no. R900223890 (metal version)
Device connector allocation Contact Signal with A1 interface Signal with F1 interface
Supply voltage A 24 VDC (u(t) = 19.4 to 35 V); I
max
= 2 A
B 0 V
Reference potential actual value C Reference contact F; R
e
>50kΩ Reference contact F; R
e
<10Ω
Differential amplifier input D ±10 V command value; R
e
>50kΩ 4 to 20 mA command value; R
e
>100Ω
E Reference potential command value
Measuring output (actual value) F ±10 V actual value
(limit load 5 mA)
4 to 20 mA actual value,
loadresistancemax.300Ω
PE Connected to cooling element and valve housing
Command value: Positive command value 0 to +10 V (or 12 to 20 mA) at D and reference potential at E result in flow
fromP→AandB→T.
Negative command value 0 to –10 V (or 12 to 4 mA) at D and reference potential at E result in flow
fromP→BandA→T.
For valves with 1 solenoid on side a (e. g. variant EA and WA), a positive command value 0 to +10 V
(or4to20mA)atDandreferencepotentialatEresultinflowfromP→BandA→T.
Actual value: Actualvalue0to+10V(or12to20mA)atFandreferencepotentialatCresultinflowfromP→Aand
B→T,actualvalue0to–10V(or4to12mA)resultinflowfromP→BandA→T.
With valves with 1 solenoid, a positive actual value 0 to +10 V (or 4 to 20 mA) at F and reference potential
atCresultinflowfromP→BandA→T.
Connection cable: Recommendation: – up to 25 m cable length type LiYCY 7 x 0.75 mm
2
– up to 50 m cable length type LiYCY 7 x 1.0 mm
2
External diameter see sketch of mating connector
Connect shield to PE only on the supply side.
Electrical connection, mating connectors (dimensions in mm)
10/22 Bosch Rexroth AG Hydraulics













±10 V/4...20 mA actual position
+24 V
0 V
Reference actual position
±10 V/4...20 mA signal input
Reference input
4WRE; 4WREE RE 29061/11.12
Block diagram / pin assignment
Interface Integrated electronics (OBE) Valve
Integrated electronics (OBE) type 4WREE
Year of construction, week of
construction + country code
Differential
amplifier
Command value
Reference
potential
Ramp
generator
2)
Actual value
Actual value
Protective earth-
ing conductor
1)
Supply
voltage
Demodulator
Oscillator
Power supply unit
Position
trans-
ducer
Zero point
3)
Sensitivity
Controller
Notice: Electric signals taken out via control electronics (e.g. actual value) must not be used for switching off safety-
relevant machine functions!
1)
The protective earthing conductor (PE) is connected to cooling
element and valve housing!
2)
Ramp can be set from 0 to 2.5 s from the outside, identical for
T
up
and T
down
3)
Zero point can be set from the outside
Undervoltage
detection
Locking
24 V
GND
Reference
potential
Valve type
Serial valve no. to the
manufacturing order
Material no.
Internal manufac-
turing order no.
Symbol
Hydraulics Bosch Rexroth AG 11/22










  










  
Characteristic curves: Type 4WREE (measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C) Size 6 and 10
Pressure signal characteristic curve (control spool V),
p
s
= 100 bar
Size 6
Size 10
U
EN
U
E
in%→
←
Δp
L
in%→
p
S
←
U
EN
U
E
in%→
←
Δp
L
in%→
p
S
←
RE 29061/11.12 4WRE; 4WREE
12/22 Bosch Rexroth AG Hydraulics
      
    
 



 


 
 


 
Commandvaluein%→
Flowinl/min→
P → A / B → T
or
P → B / A → T
4WRE; 4WREE RE 29061/11.12
Characteristic curves: Type 4WREE (measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C) Size 6 and 10
Type 4WREE 10 V75
Type 4WREE 6 V32
Zero flow with central control spool position
Characteristic curves: Type 4WREE (measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C and p = 100 bar) Size 6
4 l/min rated flow with 10 bar valve pressure differential
1 Δp
= 10 bar constant
2 Δp = 20 bar constant
3 Δp = 30 bar constant
4 Δp = 50 bar constant
5 Δp = 100 bar constant
Control spool E- and W
Control spool V
Operatingpressureinbar→
Zeroflowinl/min→
Operatingpressureinbar→
Zeroflowinl/min→
Hydraulics Bosch Rexroth AG 13/22




        












 



 





 
 


 


 
 


 


 
 


 
RE 29061/11.12 4WRE; 4WREE
Characteristic curves: Type 4WREE (measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C and p = 100 bar) Size 6
Flowinl/min→
Commandvaluein%→
Flowinl/min→Flowinl/min→
8 l/min rated flow with 10 bar valve pressure differential
Maximum admissible flow
Notice:
Observe the performance limits on
page 15!
Δp
= Valve pressure differential (inlet
pressure p
P
minus load pressure p
L
minus return flow pressure p
T
)
Control spool V
Control spool E- and W
16 l/min rated flow with 10 bar valve pressure differential
32 l/min rated flow with 10 bar valve pressure differential
P → A / B → T
or
P → B / A → T
P → A / B → T
or
P → B / A → T
P → A / B → T
or
P → B / A → T
Control spool V
Control spool E- and W
Control spool V
Control spool E- and W
Commandvaluein%→
Commandvaluein%→
1 Δp
= 10 bar constant
2 Δp = 20 bar constant
3 Δp
= 30 bar constant
4 Δp = 50 bar constant
5 Δp = 100 bar constant
1 Δp
= 10 bar constant
2 Δp = 20 bar constant
3 Δp
= 30 bar constant
4 Δp = 50 bar constant
5 Δp = 100 bar constant
1 Δp
= 10 bar constant
2 Δp = 20 bar constant
3 Δp
= 30 bar constant
4 Δp = 50 bar constant
5 Δp = 100 bar constant
14/22 Bosch Rexroth AG Hydraulics



 













 











 






 
 






 
 






 
4WRE; 4WREE RE 29061/11.12
Characteristic curves: Type 4WREE (measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C and p = 100 bar) Size 10
Flowinl/min→
Commandvaluein%→
Flowinl/min→Flowinl/min→
25 l/min rated flow with 10 bar valve pressure differential
Maximum admissible flow
Notice
:
Observe the performance limits on
page 15!
Δp
= Valve pressure differential (inlet
pressure p
P
minus load pressure p
L
minus return flow pressure p
T
)
50 l/min rated flow with 10 bar valve pressure differential
75 l/min rated flow with 10 bar valve pressure differential
P → A / B → T
or
P → B / A → T
P → A / B → T
or
P → B / A → T
P → A / B → T
or
P → B / A → T
Commandvaluein%→
Commandvaluein%→
1 Δp
= 10 bar constant
2 Δp = 20 bar constant
3 Δp
= 30 bar constant
4 Δp = 50 bar constant
5 Δp = 100 bar constant
1 Δp
= 10 bar constant
2 Δp = 20 bar constant
3 Δp
= 30 bar constant
4 Δp = 50 bar constant
5 Δp = 100 bar constant
1 Δp
= 10 bar constant
2 Δp = 20 bar constant
3 Δp
= 30 bar constant
4 Δp = 50 bar constant
5 Δp = 100 bar constant
Control spool V
Control spool E- and W
Control spool V
Control spool E- and W
Control spool V
Control spool E- and W
Hydraulics Bosch Rexroth AG 15/22
























 

 








RE 29061/11.12 4WRE; 4WREE
Frequency response characteristic curves: Type 4WREE
(measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C, p
s
= 10 bar) Size 6
Phaseanglein°→
Signal ±10 %
Signal ±25 %
Signal ±100 %
AmplituderatioindB→
FrequencyinHz→
Strokein%→
Signal change in %
Transition function with stepped electric input signals: Type 4WREE Size 6
(measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C and p
s
= 10 bar)
Timeinms→
4/3 valve version
Control spool E
4/3 valve version
Control spool V
16/22 Bosch Rexroth AG Hydraulics




    

























4WRE; 4WREE RE 29061/11.12
Transition function with stepped electric input signals: Type 4WREE Size 10
(measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C and p
s
= 10 bar)
4/3 valve version
Control spool E
4/3 valve version
Control spool V
Phaseanglein°→
Signal ±10 %
Signal ±25 %
Signal ±100 %
AmplituderatioindB→
FrequencyinHz→
Strokein%→
Signal change in %
Timeinms→
Frequency response characteristic curves: Type 4WREE
(measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C, p
s
= 10 bar) Size 10
Hydraulics Bosch Rexroth AG 17/22




  










 
 







Maximum admissi-
ble flow
RE 29061/11.12 4WRE; 4WREE
Flow: Type 4WREE (measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C) Size 6
Load function with maximum valve opening
Rated flow 25, 50 and 75 l/min
Control spool V
Maximum admissi-
ble flow
Observe the maximum admissible flow of 80 l/min!
Observe the maximum admissible flow of 180 l/min!
Load function with maximum valve opening
Rated flow 4, 8, 16 and 32 l/min
Control spool V
Flowinl/min→
Valvepressuredifferentialinbar→
P→A/B→T
or
P→B/A→T
P→A/B→T
or
P→B/A→T
Flowinl/min→
Valvepressuredifferentialinbar→
Flow: Type 4WREE (measured with HLP46, ϑ
Oil
= 40 °C ± 5 °C) Size 10
18/22 Bosch Rexroth AG Hydraulics






















4WRE; 4WREE RE 29061/11.12
Unit dimensions: Type 4WRE (dimensions in mm) Size 6
1 Valve housing
2
Proportional solenoid "a" with inductive position transducer
3 Proportional solenoid "b"
4 Mating connector "A", color gray,
separate order – see page 8
5 Mating connector "B", color black,
separate order – see page 8
6 Mating connector for inductive position transducer,
separate order – see page 8
7 Plug screw for valve with one solenoid
(2 spool positions, version EA or WA)
8 Identical seal rings for ports A, B, P, and T
9 Space required to remove the mating connector
10 Name plate
11 Machined valve mounting face,
porting pattern according to ISO 4401-03-02-0-05
(with locating hole)
Deviating from the standard:
- without locating hole "G"
- Ports P, A, B and T with Ø 8 mm
Subplates and valve mounting screws see page 22


Required surface quality of the
valve mounting face
Hydraulics Bosch Rexroth AG 19/22
























RE 29061/11.12 4WRE; 4WREE
1 Valve housing
2
Proportional solenoid "a" with inductive position transducer
3 Proportional solenoid "b"
7 Plug screw for valve with one solenoid
(2 spool positions, version EA or WA)
8 Identical seal rings for ports A, B, P, and T
10 Name plate
11 Machined valve mounting face,
porting pattern according to ISO 4401-03-02-0-05
(with locating hole)
Deviating from the standard:
- without locating hole "G"
- Ports P, A, B and T with Ø 8 mm
12 Integrated electronics (OBE)
13 Mating connector,
separate order – see page 9
Unit dimensions: Type 4WREE (dimensions in mm) Size 6
General tolerances according to ISO 2768-mK
Subplates and valve mounting screws see page 22


Required surface quality of the
valve mounting face
20/22 Bosch Rexroth AG Hydraulics
























4WRE; 4WREE RE 29061/11.12
1 Valve housing
2
Proportional solenoid "a" with inductive position transducer
3 Proportional solenoid "b"
4 Mating connector "A", color gray,
separate order – see page 8
5 Mating connector "B", color black,
separate order – see page 8
6 Mating connector for inductive position transducer,
separate order – see page 8
7 Plug screw for valve with one solenoid
(2 spool positions, version EA or WA)
8 Identical seal rings for ports A, B, P, T and T1
9 Space required to remove the mating connector
10 Name plate
11 Machined valve contact surface,
porting pattern according to ISO 4401-05-04-0-05 differ-
ing from the standard: Connection T1 Ø 11.2 mm
Unit dimensions: Type 4WRE (dimensions in mm) Size 10
Subplates and valve mounting screws see page 22
General tolerances according to ISO 2768-mK


Required surface quality of the
valve mounting face
Hydraulics Bosch Rexroth AG 21/22

























RE 29061/11.12 4WRE; 4WREE
Unit dimensions: Type 4WREE (dimensions in mm) size 10
1 Valve housing
2
Proportional solenoid "a" with inductive position transducer
3 Proportional solenoid "b"
7 Plug screw for valve with one solenoid
(2 spool positions, version EA or WA)
8 Identical seal rings for ports A, B, P, T and T1
10 Name plate
11 Machined valve contact surface,
porting pattern according to ISO 4401-05-04-0-05 differ-
ing from the standard: Connection T1 Ø 11.2 mm
12 Integrated electronics (OBE)
13 Mating connector,
separate order – see page 9
Subplates and valve mounting screws see page 22
General tolerances according to ISO 2768-mK


Required surface quality of the
valve mounting face
22/22 Bosch Rexroth AG Hydraulics
Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone +49 (0) 93 52 / 18-0
documentation@boschrexroth.de
www.boschrexroth.de
© 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 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.
4WRE; 4 WREE RE 29061/11.12
Unit dimensions
Subplates Data sheet
Size 6 45052
Size 10 45054
Hexagon socket head cap screws Material number
Size 6 4x ISO 4762 - M5 x 50 - 10.9-flZn-240h-L
Tightening torque M
A
= 7 Nm ±10 %
or
4x ISO 4762 - M5 x 50 - 10.9
Tightening torque M
A
= 8.9 Nm ±10 %
R913000064
Size 10 4x ISO 4762 - M6 x 40 - 10.9-flZn-240h-L
Tightening torque M
A
= 12.5 Nm ±10 %
or
4x ISO 4762 - M6 x 40 - 10.9
Tightening torque M
A
= 15.5 Nm ±10 %
R913000058
Notice: This tightening torque of the hexagon socket head cap screws refers to the maximum operating pressure!
Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone +49 (0) 93 52 / 18-0
documentation@boschrexroth.de
www.boschrexroth.de
© 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 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.
RE 29061/11.12 4WRE; 4 WREE Hydraulics Bosch Rexroth AG
23/22
24/22 Bosch Rexroth AG Hydraulics
Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone +49 (0) 93 52 / 18-0
documentation@boschrexroth.de
www.boschrexroth.de
© 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 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.
4WRE; 4 WREE RE 29061/11.12