RE 29106

Edition: 2025-05
Replaces: 2022-11

Proportional directional valves, direct operated,

with electrical position feedback and
integrated electronics (OBE)
Type 4WREE
▶ Size 10
▶ Component series 3X
▶ Maximum operating pressure 350 bar
▶ Maximum flow 180 l/min
▶ Rated flow 25 … 75 l/min (Δp = 10 bar)

R0011+0015

Features Contents

▶ 4/2 or 4/3-way version Features 1

▶ For subplate mounting Ordering code 2
▶ Porting pattern according to ISO 4401-05-04-0-05 Symbols3
▶ Control of flow direction and size Function, section 4
▶ Operation by means of proportional solenoids with Technical data 5…8
central thread Block diagram/pin assignment 9
▶ Spring-centered control spool Electrical connections and assignment 10
▶ Integrated electronics (OBE) with voltage or current Characteristic curves 11 … 31
input ("A1", "A7" or "F1", "F7") Dimensions 32, 33
▶ CE conformity according to EMC Directive 2014/30/EU. Accessories33
Project planning information 34
Further information 34

RE 29106, edition: 2025-05, Bosch Rexroth AG

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Ordering code

01 02 03 04 05 06 07 08 09 10 11 12 13
4 WRE E 10 – 3X / / 24 / *

01 4 main ports 4

02 Proportional directional valve, direct operated, with electrical position feedback WRE

03 With integrated electronics (OBE) E

04 Size 10 10

05 Symbols; possible version see page 3

Nominal flow (∆p = 5 bar per control edge)

06 25 l/min (only symbol E, V, E1- and V1-) 25
50 l/min (only symbol E, E1-, V1-, Q2-, Q3- and Q5-) 50
75 l/min (only symbol E, E1-, E3-, V, V1-, W, W1-, R, R3- and Q2-) 75

07 Component series 30 … 39 (30 … 39: unchanged installation and connection dimensions) 3X

Seal material (observe compatibility of seals with hydraulic fluid used, see page 6)
08 FKM seals V
NBR seals M ◊

Corrosion resistance (outside)

09 None (valve housing with standard painting) no code ◊
High corrosion protection (720 h salt spray test according to EN ISO 9227) J5

Supply voltage
10 Direct voltage 24 V 24

Electrical interface
11 Command value input ±10 V; actual value output ±10 V A1 ◊
Command value input 4 ... 20 mA; actual value output 4 ... 20 mA F1
Command value input ±10 V; actual value output 4 ... 20 mA A7
Command value input 4 ... 20 mA; actual value output ±10 V F7

Test certificates
12 None no code ◊
With acceptance test certificate 3.1 according to EN 10204 1) 3

13 For further information, see the plain text

1) When ordering, the functional certificate material number must

be specified in addition to the valve material number: Notice: ◊ = Preferred type
▶ Acceptance test certificate 3.1: R900259791

Bosch Rexroth AG, RE 29106, edition: 2025-05

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Symbols

A B A B A B A B

a 0 a 0 a 0 b a 0 b

P T P T P T P T

E◊
EA
E1-

WA E3-

R3-

Q2-

Q5-

V◊
V1-

W◊
W1-

W2-

With symbol E1-, V1-, W1-: E, E1-, E3-, EA Control spool with overlap
P→A: qV max B→T: qV/2 Q2-, Q5- Control spool for injection control
P→B: qV/2 A→T: qV max (plastics processing machines)
R, R3- Control spool with overlap for hydraulic fluid
With symbol E3-:
feedback to port P
P→A: qV max B→T: blocked
P→B: qV/2 A→T: qV max V, V1- Control spool with zero overlap
W, W1-, W2-, Control spool with overlap to relieve the
With symbol W2-: WA pressure on ports A and B after port T in the
P→A: qV/2 B→T: qV max central position
P→B: qV max A→T: qV/2

Notice:
Representation according to ISO 1219-1.
Hydraulic interim positions are shown by dashes.

Notice: ◊ = Preferred type

RE 29106, edition: 2025-05, Bosch Rexroth AG

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Function, section

The type 4WREE valves are direct operated proportional Control solenoid shut-off
directional valves with electrical position feedback and In case of the following errors, the control solenoids are
integrated electronics (OBE). de-energized by the integrated electronics (OBE):
Set-up ▶ Falling below the minimum supply voltage
The valves basically comprise: ▶ Only at interface "F1" and "F7":
▶ Housing (1) with connection surface – Falling below the minimum current command value
▶ Control spool (2) with compression springs (3 and 4) of 1.5 mA (includes cable break of the command
and spring plate (5 and 6) value line (current loop))
▶ Solenoids (7 and 8) with central thread Pressure compensation element
▶ Position transducer (9) Prevents condensate formation in the housing of
▶ Integrated electronics (13) the integrated electronics (OBE) for use outside
▶ Electric zero point adjustment (12) accessible via the industry-standard conditions with high ambient air
rubber plug humidity and significant cyclic temperature changes
Function (e.g. outdoors).
▶ With de-energized solenoids (7 and 8), central
Notice:
position of the control spool (2) by compression
▶ Due to the design principle, internal leakage is
springs (3 and 4) between spring plates (5 and 6)
inherent to the valves, which may increase over the
▶ Direct operation of the control spool (2) by controlling
life cycle.
a proportional solenoid, e.g. solenoid "b" (8)
▶ The tank line must not be allowed to run empty.
– Displacement of the control spool (2) to the left
With corresponding installation conditions,
proportional to the electric input signal
a preload valve (preload pressure approx. 2 bar)
– This opens the connection from P to A and B to T via
must be installed.
orifice-type cross-sections with progressive flow
▶ The PG fitting (10, 11, 14) must not be opened.
characteristic
▶ Interface "F1": "cable break monitoring" (<1.5 mA)
In the unactuated state, the control spool (2) is held in with shut-off of the output stage is integrated in the
a mechanical central position by the return springs of the command value input of the controller. The output
solenoids. This position does not correspond to the stage is reactivated by switching the controller off
hydraulic central position for symbol V. When the electric and on. The command value input is limited at
valve control loop is closed, the control spool is input current >21 mA, without shutting off the
positioned in the hydraulic central position. output stage.

13 12 11

„XH1“

14

10 9 7 3 1 T A P B T 2 4 8

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Technical data
(For applications outside these values, please consult us!)

General
Type of connection Subplate mounting
Porting pattern ISO 4401-05-04-0-05
Weight ▶ Valve with one solenoid kg 5.8
▶ Valve with two solenoids kg 7.4
Installation position Any, preferably horizontal
Ambient temperature range °C –20 … +60
Storage temperature range (with UV protection) °C +5 … +40
Transport temperature range °C -30 … +80
Maximum storage time Years 1 (if the storage conditions are observed, refer to the operating
instructions 07600-B)
Maximum relative humidity (no condensation) % 95
Protection class according to EN 60529 IP65 (if suitable and correctly mounted mating connectors are
used)
Maximum surface temperature °C 150 (individual operation)
MTTFD values according to EN ISO 13849 Years 150 (for further details see data sheet 08012)
Sine test according to DIN EN 60068-2-6 10 ... 2000 Hz / maximum 10 g / 10 cycles / 3 axes
Noise test according to DIN EN 60068-2-64 20 ... 2000 Hz / 10 gRMS / 30 g peak / 24 h / 3 axes
Transport shock according to DIN EN 60068-2-27 15 g / 11 ms / 3 shocks / 3 axes
Environmental compatibility ▶ Climate Environmental audit according to EN 60068-2
Conformity ▶ CE according to EMC Directive EN 61000-6-2 and EN 61000-6-3
2014/30/EU, tested according to
▶ RoHS Directive 2011/65/EU 1)

Hydraulic
Maximum operating ▶ Ports A, B, P bar 350
pressure ▶ Port T bar 210
Hydraulic fluid See table, page 6
Hydraulic fluid temperature range °C –20 … +70
Viscosity range mm2/s 20 … 380
Maximum admissible degree of contamination of the hydraulic Class 20/18/15 2)

fluid; cleanliness class according to ISO 4406 (c)

Rated flow (∆p = 5 bar per control edge) 3) l/min 25; 50; 75
Maximum flow (recommended) l/min 180

1) The product fulfills the substance requirements of the

RoHS Directive 2011/65/EU. Notice:
2) The cleanliness classes specified for the components must be The specified technical data were measured with HLP46 and
adhered to in hydraulic systems. Effective filtration prevents ϑoil = 40±5 °C.
faults and at the same time increases the life cycle of the
components.
3) Flow for deviating ∆p (per control edge):

qx = qVnom • ∆px
5

RE 29106, edition: 2025-05, Bosch Rexroth AG

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Technical data
(For applications outside these values, please consult us!)

Hydraulic fluid Classification Suitable sealing Standards Data sheet

materials
Mineral oils HL, HLP, HLPD, HVLP, HVLPD NBR, FKM DIN 51524 90220
Bio-degradable ▶ Insoluble in water HETG FKM
ISO 15380
HEES FKM 90221
▶ Soluble in water HEPG FKM ISO 15380
Flame-resistant ▶ Water-free HFDU (glycol base) FKM
HFDU (ester base) FKM ISO 12922 90222
HFDR FKM
▶ Containing water HFC (Fuchs: Hydrotherm 46M, NBR
Renosafe 500;
Petrofer: Ultra Safe 620; ISO 12922 90223
Houghton: Safe 620;
Union: Carbide HP5046)

Important information on hydraulic fluids: ▶ Flame-resistant – containing water:

▶ For further information and data on the use of other hydraulic – Due to an increased cavitation tendency with the use of
fluids, please refer to the data sheets above or contact us. HFC hydraulic fluids, the life cycle of the component
▶ There may be limitations regarding the technical valve data may be reduced by up to 30% as compared to use with
(temperature, pressure range, life cycle, maintenance intervals, HLP mineral oil. In order to reduce the cavitation effect,
etc.). it is recommended – if possible, specific to the
▶ The ignition temperature of the hydraulic fluid used must be installation – to back up the return flow pressure in ports T to
50 K higher than the maximum surface temperature. approx. 20% of the pressure differential at the component.
▶ Bio-degradable and flame-resistant – containing water: – Dependent on the hydraulic fluid used, the maximum ambient
If components with galvanic zinc coating (e.g. version "J3" or "J5") and hydraulic fluid temperature must not exceed 50 °C.
or parts containing zinc are used, small amounts of dissolved zinc In order to reduce the heat input into the component,
may get into the hydraulic system and cause accelerated aging of the command value profile is to be adjusted for proportional
the hydraulic fluid. Zinc soap may form as a chemical reaction and high-response valves.
product, which may clog filters, nozzles and solenoid
valves – particularly in connection with local heat input.

Static/dynamic
Hysteresis % <0.1
Range of inversion % <0.05
Response sensitivity % <0.05
Temperature drift when ▶ Hydraulic fluid temperature %/10 K ≤0.15
changing ▶ Operating pressure %/100 bar ≤0.1

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Technical data
(For applications outside these values, please consult us!)

Electrical, integrated electronics (OBE) – interface "A1"

Supply voltage ▶ Nominal value VDC 24
▶ Minimum VDC 19
▶ Maximum VDC 36
▶ Maximum residual ripple Vpp 2.5
▶ Maximum power consumption VA 60
▶ Current consumption Rated current Aeff <2
during operation 4) Impulse current A <2.5
▶ Fuse protection, external AT 3.15 (time-lag)
Charging capacity (externally effective) µF <1000
Relative duty cycle time according to VDE 0580 S1 (continuous operation)
Functional ground and screening See pin assignment, page 10
Maximum voltage of the differential inputs against 0 V D→B; E→B (max. 18 V)
Command value ▶ Measurement range V ±10
(differential amplifier) ▶ Input resistance kΩ >100
Actual value ▶ Output range V ±10
(test signal) ▶ Minimum load impedance kΩ >1

Electrical, integrated electronics (OBE) – interface "F1"

Supply voltage ▶ Nominal value VDC 24
▶ Minimum VDC 19
▶ Maximum VDC 36
▶ Maximum residual ripple Vpp 2.5
▶ Maximum power consumption VA 60
▶ Current consumption Rated current Aeff <2
during operation 4) Impulse current A <2.5
▶ Fuse protection, external AT 3.15 (time-lag)
Charging capacity (externally effective) µF <1000
Relative duty cycle time according to VDE 0580 S1 (continuous operation)
Functional ground and screening See pin assignment, page 10
Maximum voltage of the differential inputs against 0 V D→B; E→B (max. 18 V)
Command value ▶ Input current range mA 4 … 20
▶ Input resistance Ω 200
Actual value ▶ Output range mA 4 … 20
(test signal) ▶ Maximum load Ω 500

4) The making current peak is usually higher (depending on power

supply unit, supply line, and capacities).

RE 29106, edition: 2025-05, Bosch Rexroth AG

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Technical data
(For applications outside these values, please consult us!)

Electrical, integrated electronics (OBE) – interface "A7"

Supply voltage ▶ Nominal value VDC 24
▶ Minimum VDC 19
▶ Maximum VDC 36
▶ Maximum residual ripple Vpp 2.5
▶ Maximum power consumption VA 60
▶ Current consumption Rated current Aeff <2
during operation 4) Impulse current A <2.5
▶ Fuse protection, external AT 3.15 (time-lag)
Charging capacity (externally effective) µF <1000
Relative duty cycle time according to VDE 0580 S1 (continuous operation)
Functional ground and screening See pin assignment, page 10
Maximum voltage of the differential inputs against 0 V D→B; E→B (max. 18 V)
Command value ▶ Measurement range V ±10
(differential amplifier) ▶ Input resistance Ω >100
Actual value ▶ Output range mA 4 … 20
(test signal) ▶ Maximum load Ω 500

Electrical, integrated electronics (OBE) – interface "F7"

Supply voltage ▶ Nominal value VDC 24
▶ Minimum VDC 19
▶ Maximum VDC 36
▶ Maximum residual ripple Vpp 2.5
▶ Maximum power consumption VA 60
▶ Current consumption Rated current Aeff <2
during operation 4) Impulse current A <2.5
▶ Fuse protection, external AT 3.15 (time-lag)
Charging capacity (externally effective) µF <1000
Relative duty cycle time according to VDE 0580 S1 (continuous operation)
Functional ground and screening See pin assignment, page 10
Maximum voltage of the differential inputs against 0 V D→B; E→B (max. 18 V)
Command value ▶ Input current range mA 4 … 20
▶ Input resistance Ω 200
Actual value ▶ Output range V ±10
(test signal) ▶ Minimum load impedance kΩ >1

4) The making current peak is usually higher (depending on power

supply unit, supply line, and capacities).

Bosch Rexroth AG, RE 29106, edition: 2025-05

 Interface Integrated electronics (OBE) Valve

Output stage
U
Differential I
D
Command value amplifier
U/I
E U
Reference potential
Controller
F
Actual value Actual value Output stage
U/I U
C U I
Block diagram/pin assignment

Reference potential

Undervoltage
detection
Interlocking

Digital D1 Power supply unit Oscillator

safe Supply voltage A
U +U
output B 3) 0V
4) GND U −U Demodulator
PE
Protective grounding conductor 1)

Position
Zero point 2) transducer

1) The protective grounding conductor (PE) is connected to the valve

housing. Notice:
2) Zero point can be adjusted from the outside ▶ Electrical signals provided via control electronics (e. g. actual value)
3) Charging the capacitor when the supply voltage is connected results must not be used to switch off safety-relevant machine functions.
in a current peak (depending on the power supply). ▶ Only one output stage for symbols EA and WA.
4) ▶ Supply of the valve electronics via a safe output (safety module):
If the supply voltage of the proportional valve is realized via the digital
– After shut-off of the supply voltage, a voltage remains present in
safe output of the PLC (safety shut-down).
the valve electronics for a certain time (in the range of seconds)
without the diode D1. This can impair the monitoring function of
the switching output.
– The monitoring function of the switching output can be ensured
by installing the external diode D1 (min. 75 V; 3 A).
– The charge stored in the valve electronics is in no way sufficient
to move the control spool into the open position after the supply
voltage is shut off.

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Electrical connections and assignment

Connector pin assignment XH1, 6-pole + PE according to DIN 43563

Pin Interface assignment

"A1" "F1" "A7" "F7"
A Supply voltage Supply voltage Supply voltage Supply voltage
B GND GND GND GND
C Reference potential Reference potential Reference potential Reference potential
actual value actual value actual value actual value
D Command value Command value Command value Command value
E Reference potential Reference potential Reference potential Reference potential
command value command value command value command value
F Actual value Actual value Actual value Actual value
FE Functional ground (directly connected to the valve housing)

XH1 3 spool positions

A Spool position
F B Command value Actual value "a"; "b"
PE
Positive "A1" 0 … +10 V 0 … +10 V P→A; B→T
"F1" 12 … 20 mA 12 … 20 mA
E C "A7" 0 … +10 V 12 … 20 mA
D
"F7" 12 … 20 mA 0 … +10 V
Negative "A1" 0 … −10 V 0 … –10 V P→B; A→T
"F1" 12 … 4 mA 12 … 4 mA
"A7" 0 … −10 V 12 … 4 mA
"F7" 12 … 4 mA 0 … –10 V

2 spool positions
Spool position
Command value Actual value "a" "b"
Positive "A1" 0 … +10 V 0 … +10 V P→B; A→T P→A; B→T
"F1" 4 … 20 mA 4 … 20 mA

Connection cable:
Notice: ▶ Up to 20 m cable length type LiYCY 7 x 0.75 mm2
Mating connectors, separate order, see page 33 and ▶ Up to 40 m cable length type LiYCY 7 x 1.0 mm2
data sheet 08006. ▶ EMC-compliant installation:
– Apply screening to both line ends
– Use metal mating connector (see page 33)
▶ Alternatively up to 30 m cable length admissible
– Apply screening on supply side
– Plastic mating connector (see page 33) can be used

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Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Pressure signal function (ps = 100 bar)

Symbol V; V1-
100 ∆pA→B
← Pressure differential (B→A/A→B)

80
60
40
20
in % pP →

A B
0
a 0 b
–20 UE
P T
–40
–60 pP
–80
–100
-4 -3 -2 -1 0 1 2 3 4
← Command value in % →

Leakage flow (with central control spool position)

Version "V75"
2
Leakage flow in l/min →

0 50 100 150 210 250 300 350

Operating pressure in bar →

Tolerance-related variation

Notice:
Typical characteristic curves which are subject to tolerance
variations.

RE 29106, edition: 2025-05, Bosch Rexroth AG

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Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 25 l/min with ∆p = 5 bar/control edge)

Symbol V
30
25
1
20
3
15
← Flow in l/min →

10
5
0
-5
-10
4
-15 1 P→A
-20 2 A→T
2
-25 3 P→B
-30 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol E
30
25
1
20
3
15
← Flow in l/min →

10
5
0
-5
-10
-15 1 P→A
4
-20 2 A→T
2
-25 3 P→B
-30 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

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Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 25 l/min with ∆p = 5 bar/control edge)

Symbol W
30
25
3 1
20
15
← Flow in l/min →

10
5
0
-5
-10
-15 1 P→A
-20 2 A→T
2 4
-25 3 P→B
-30 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol V1-
30
1
25
20
3
15
← Flow in l/min →

10
5
0
-5
-10
-15 1 P→A
4
-20 2 A→T
-25 3 P→B
2 4 B→T
-30

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

RE 29106, edition: 2025-05, Bosch Rexroth AG

 14/36 4WREE | Proportional directional valve

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 25 l/min with ∆p = 5 bar/control edge)

Symbol E1-
30
25
1
20
3
15
← Flow in l/min →

10
5
0
-5
-10
-15 1 P→A
4
-20 2 A→T
2
-25 3 P→B
-30 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol W1-
30
25
1
20
3
15
← Flow in l/min →

10
5
0
-5
-10
-15 1 P→A
4
-20 2 A→T
2
-25 3 P→B
-30 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

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Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 25 l/min with ∆p = 5 bar/control edge)

Symbol Q5-
50
40
30
3 1
← Flow in l/min →

20
10
0
-10
-20
1 P→A
-30
2 A→T
-40 3 P→B
2 4 4 B→T
-50

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Notice:
▶ Typical characteristic curves which are subject to tolerance
variations.
▶ Volume flow with different ∆p, see page 5.

RE 29106, edition: 2025-05, Bosch Rexroth AG

 16/36 4WREE | Proportional directional valve

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 50 l/min with ∆p = 5 bar/control edge)

Symbol V
60
1
50
3
40
30
← Flow in l/min →

20
10
0
-10
-20
-30 1 P→A
-40 2 A→T
2 4 3 P→B
-50
-60 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol E
60
50 1
3
40
30
← Flow in l/min →

20
10
0
-10
-20
-30 1 P→A
-40 2 A→T
2 4
-50 3 P→B
-60 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

Bosch Rexroth AG, RE 29106, edition: 2025-05

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Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 50 l/min with ∆p = 5 bar/control edge)

Symbol W
60
50 1
3
40
30
← Flow in l/min →

20
10
0
-10
-20
-30 1 P→A
-40 2 A→T
2 4 3 P→B
-50
-60 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol V1-
60
50
1
40
30
← Flow in l/min →

3
20
10
0
-10
-20
-30 4
1 P→A
-40 2 A→T
2 3 P→B
-50
-60 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

RE 29106, edition: 2025-05, Bosch Rexroth AG

 18/36 4WREE | Proportional directional valve

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 50 l/min with ∆p = 5 bar/control edge)

Symbol E1-
60
50
1
40
30
← Flow in l/min →

3
20
10
0
-10
-20
4
-30 1 P→A
-40 2 A→T
2
-50 3 P→B
-60 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol W1-
60
50
1
40
30
← Flow in l/min →

3
20
10
0
-10
-20
4
-30 1 P→A
-40 2 A→T
2 3 P→B
-50
-60 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

Bosch Rexroth AG, RE 29106, edition: 2025-05

 Proportional directional valve | 4WREE  19/36

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 50 l/min with ∆p = 5 bar/control edge)

Symbol E3-
60
50
1
40
30
← Flow in l/min →

3
20
10
0
4
-10
-20
-30 1 P→A
-40 2 A→T
2
-50 3 P→B
-60 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol Q2-
70
60
50 1
40
← Flow in l/min →

30
20
3
10
0
-10
-20
-30
-40 1 P→A
-50 2 A→T
2 4 3 P→B
-60
-70 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

RE 29106, edition: 2025-05, Bosch Rexroth AG

 20/36 4WREE | Proportional directional valve

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 50 l/min with ∆p = 5 bar/control edge)

Symbol Q5-
80
60
3 1
40
← Flow in l/min →

20
0
-20
-40 1 P→A
2 A→T
-60
3 P→B
2 4 4 B→T
-80

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Notice:
▶ Typical characteristic curves which are subject to tolerance
variations.
▶ Volume flow with different ∆p, see page 5.

Bosch Rexroth AG, RE 29106, edition: 2025-05

 Proportional directional valve | 4WREE  21/36

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 75 l/min with ∆p = 5 bar/control edge)

Symbol V
100
80
3 1
60
← Flow in l/min →

40
20
0
-20
-40
1 P→A
-60
2 4 2 A→T
-80 3 P→B
-100 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol E
100
80
3 1
60
← Flow in l/min →

40
20
0
-20
-40
1 P→A
-60
2 4 2 A→T
-80 3 P→B
-100 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

RE 29106, edition: 2025-05, Bosch Rexroth AG

 22/36 4WREE | Proportional directional valve

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 75 l/min with ∆p = 5 bar/control edge)

Symbol W
100
3 1
80
60
← Flow in l/min →

40
20
0
-20
-40
1 P→A
-60
2 4 2 A→T
-80 3 P→B
-100 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol V1-
100
1
80
60
3
← Flow in l/min →

40
20
0
-20
-40
4 1 P→A
-60
2 2 A→T
-80 3 P→B
-100 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

Bosch Rexroth AG, RE 29106, edition: 2025-05

 Proportional directional valve | 4WREE 23/36

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 75 l/min with ∆p = 5 bar/control edge)

Symbol E1-
100
1
80
60
3
← Flow in l/min →

40
20
0
-20
-40
4 1 P→A
-60
2 2 A→T
-80 3 P→B
-100 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol W1-
100
1
80
60
3
← Flow in l/min →

40
20
0
-20
-40
4 1 P→A
-60
2 2 A→T
-80 3 P→B
-100 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

RE 29106, edition: 2025-05, Bosch Rexroth AG

 24/36 4WREE | Proportional directional valve

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 75 l/min with ∆p = 5 bar/control edge)

Symbol E3-
100
80
1
60
3
← Flow in l/min →

40
20
0
4
-20
-40
1 P→A
-60
2 2 A→T
-80 3 P→B
-100 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol Q2-
100
80
1
60
← Flow in l/min →

40
3
20
0
-20
-40
1 P→A
-60
2 2 A→T
-80 3 P→B
4 4 B→T
-100

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

Bosch Rexroth AG, RE 29106, edition: 2025-05

 Proportional directional valve | 4WREE  25/36

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 75 l/min with ∆p = 5 bar/control edge)

Symbol Q5-
100
80
3 1
60
← Flow in l/min →

40
20
0
-20
-40
1 P→A
-60
4 2 A→T
-80 3 P→B
2
-100 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Symbol R
100
1
80
60
3 5
← Flow in l/min →

40
20
0
4
-20
-40 1 P→A
-60 2 A→T
2 3 P→B
-80 4 B→T
-100 5 B→P

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →
Notice:
▶ Typical characteristic curves which are
subject to tolerance variations.
▶ Volume flow with different ∆p, see page 5.

RE 29106, edition: 2025-05, Bosch Rexroth AG

 26/36 4WREE | Proportional directional valve

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow signal function (rated flow 75 l/min with ∆p = 5 bar/control edge)

Symbol R3-
100
1
80
60
3
← Flow in l/min →

40
4
20
0
-20
-40
1 P→A
-60
2 2 A→T
-80 3 P→B
-100 4 B→T

-100 -80 -60 -40 -20 0 20 40 60 80 100

← Stroke in % →

-10 -8 -6 -4 -2 0 2 4 6 8 10
← UD-E in V →

4 5.6 7.2 8.8 10.4 12 13.6 15.2 16.8 18.4 20

← ID-E in mA →

Notice:
▶ Typical characteristic curves which are subject to tolerance
variations.
▶ Volume flow with different ∆p, see page 5.

Bosch Rexroth AG, RE 29106, edition: 2025-05

 Proportional directional valve | 4WREE  27/36

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Transition function with stepped electric input signals (4/3-way version)

Signal change in %
100 0 – 100 – 0
90
80
0 – 75 – 0
70
Stroke in % →

60
50 0 – 50 – 0
40
30
0 – 25 – 0
20
10
0
0 12 24 36 48 60 0 12 24 36 48 60
Time in ms →

Frequency response

Symbol V
10 360

5 330

0 300
-3 3
-5 270
2
Amplitude ratio in dB →

1
-10 240
Phase angle in ° →

-15 210
1
-20 180

-25 150
2
-30 120

-35 90
3
-40 60

-45 30 1 Signal ±5 %
2 Signal ±25 %
-50 0 3 Signal ±100 %
1 2 3 4 5 6 7 8 910 20 30 40 50 60 80 100 200
Frequency in Hz →

Notice:
Typical characteristic curves which are subject to tolerance
variations.

RE 29106, edition: 2025-05, Bosch Rexroth AG

 28/36 4WREE | Proportional directional valve

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume load flow function (at maximum valve opening; P→A; B→T or P→B; A→T)

Symbol V
400 4

200
180 5
Flow in l/min →

3 2 1
100
80
60
40

20

10
6 8 10 20 40 60 80 100 200 400
Pressure differential in bar →

Symbol E
400 4

200
180 5
3
Flow in l/min →

2 1
100
80
60
40

20

10
6 8 10 20 40 60 80 100 200 400
Pressure differential in bar →

Symbol W
400 4

200
180 5
Flow in l/min →

3
100
80
Nominal flow
60
1 25 l/min
40
2 50 l/min
3 75 l/min
20 4 Maximum admissible flow
5 Recommended flow
10 (flow velocity 30 m/s)
6 8 10 20 40 60 80 100 200 400
Pressure differential in bar →

Notice:
Typical characteristic curves which are subject to tolerance
variations.

Bosch Rexroth AG, RE 29106, edition: 2025-05

 Proportional directional valve | 4WREE 29/36

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow load function (at maximum valve opening)

Symbol V1-
400
3.1
2.1
200 3.2
180 5
2.2
Flow in l/min →

100 1.2
80 1.1
60
40

20

10
6 8 10 20 40 60 80 100 200 400
Pressure differential in bar →

Symbol E1-
400
3.1
200 2.1
180 5
3.2
Flow in l/min →

100 2.2
80 1.2 1.1
60
40

20

10
6 8 10 20 40 60 80 100 200 400
Pressure differential in bar →

Symbol W1-
400
3.1
200
180 5 Nominal flow
Flow in l/min →

3.2
100 1.1 25 l/min (P→A; B→T)
80
1.2 25 l/min (P→B; A→T)
60
2.1 50 l/min (P→A; B→T)
40 2.2 50 l/min (P→B; A→T)
3.1 75 l/min (P→A; B→T)
20 3.2 75 l/min (P→B; A→T)
5 Recommended flow
10 (flow velocity 30 m/s)
6 8 10 20 40 60 80 100 200 400
Pressure differential in bar →

Notice:
Typical characteristic curves which are subject to tolerance
variations.

RE 29106, edition: 2025-05, Bosch Rexroth AG

 30/36 4WREE | Proportional directional valve

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow load function (at maximum valve opening)

Symbol Q2-
400
3
2
200
180 5
Flow in l/min →

100
80
60
40

20

10
6 8 10 20 40 60 80 100 200 400
Pressure differential in bar →

Symbol Q5-
400

200
180 5
Flow in l/min →

2
100
80
60
Nominal flow
40
2 50 l/min
3 75 l/min
20
5 Recommended flow
(flow velocity 30 m/s)
10
6 8 10 20 40 60 80 100 200 400
Pressure differential in bar →

Notice:
▶ Symbol Q2 and Q5
For flow P→A; B→T or P→B; A→T the following permitted
operating limitations of use apply to avoid unforeseen valve
behavior:
– Nominal flow 50 l/min: Maximum pressure differential
110 bar
– Nominal flow 75 l/min: Maximum pressure differential
70 bar
If higher system pressures are used, please contact us.
▶ Typical characteristic curves which are subject to tolerance
variations.

Bosch Rexroth AG, RE 29106, edition: 2025-05

 Proportional directional valve | 4WREE  31/36

Characteristic curves
(measured with HLP46, ϑoil = 40±5 °C)

Volume flow load function (at maximum valve opening)

Symbol E3-
400

200
180 5
Flow in l/min →

2
100
80
60
40

20

10
6 8 10 20 40 60 80 100 200 400
Pressure differential in bar →

Symbol R; R3-
400

200
180 5
Flow in l/min →

3.2
100
80
60
40

20

10
6 8 10 20 40 60 80 100 200 400
Pressure differential in bar →

Symbol EA
400

3
200
180 5
Flow in l/min →

100
80
60
Nominal flow
40
2 50 l/min
3 75 l/min
20
3.2 75 l/min (P→B; A→T)
5 Recommended flow
10
6 8 10 20 40 60 80 100 200 400 (flow velocity 30 m/s)
Pressure differential in bar →

Notice:
Typical characteristic curves which are subject to tolerance
variations.

RE 29106, edition: 2025-05, Bosch Rexroth AG

32/36 4WREE | Proportional directional valve

Dimensions
(dimensions in mm)

9 8 10 11
15

144
11

79.4
“a“ “b“

38.9
24 30 70
2 1 102 4 12 3
182
260 8.4
362
45

104 0.01/100
25
13

Rzmax 4
F1
P
F2 5
Required surface quality of the
A B valve contact surface
72

T T1

F4 F3

1 Valve housing Valve mounting screws see page 33.

2 Proportional solenoid "a" with inductive position transducer
3 Proportional solenoid "b"
4 Identical seal rings for ports A, B, P, and T1
5 Machined valve contact surface; porting pattern according to
ISO 4401-05-04-0-05
6 Integrated electronics (OBE)
7 Mating connector, (separate order, see page 33
data sheet 08006) Notice:
The dimensions are nominal dimensions which are subject to
8 Name plate
tolerances.
9 Space required for removing the mating connector
10 Zero point adjustable from outside (see "Project planning
information" on page 34)
11 PG screw fitting (with sealing wax)
12 Plug screw for valve with one solenoid (2 spool positions,
version "EA" or "WA")

Bosch Rexroth AG, RE 29106, edition: 2025-05

 Proportional directional valve | 4WREE 33/36

Dimensions

Valve mounting screws (separate order)

Size Version Quantity Hexagon socket head cap screws Material number
10 Standard 4 ISO 4762 - M6 x 40 - 10.9 R913051533
Friction coefficient µtotal = 0.09 … 0.14; tightening torque MA = 12.5 Nm ±10%
High corrosion 4 ISO 4762 - M6 x 40 - 10.9 R913000058
protection Friction coefficient µtotal = 0.09 … 0.14; tightening torque MA = 12.5 Nm ±10%
or
– 4 ISO 4762 - M6 x 40 - 10.9 Not included in the
Tightening torque MA = 15.5 Nm ±10% Rexroth delivery range

Subplates (separate order) with porting pattern according to

Notice: ISO 4401-05-04-0-05 see data sheet 45100.
The tightening torque of the hexagon socket head cap screws
refers to the maximum operating pressure.

Accessories (separate order)

Mating connectors and cable sets

Item 1) Designation Version Short designation Material Data sheet
number
7 Mating connector; Straight, metal, PG11 7PZ31...M R900223890 08006
for valves with round connector, Straight, plastic, PG11 7PZ31...K R900021267
6-pole + PE
Angled, plastic, PG11 7PZ31...K R900217845
Cable sets; Plastic, 3.0 m 7PZ31 BF6 R901420483
for valves with round connector, Plastic, 5.0 m R901420491
6-pole + PE
Plastic, 10.0 m R901420496
Plastic, 20.0 m R901448068

1) See dimensions on page 32.

Test and service devices

Material number Data sheet
Service case with test device for proportional servo valves with integrated electronics (OBE); type VT-HDT-1 R996043985 –

Control electronics
Type Data sheet
Command value module Analog VT- SWMA-1-1X/... 29902

RE 29106, edition: 2025-05, Bosch Rexroth AG

34/36 4WREE | Proportional directional valve

Project planning information

Setting ramp function/ramp time:

▶ Via PLC control of the system
▶ Amplifier module type VT-SWMA-1, analog command
value module, data sheet 29902
Zero point setting:
▶ To set the zero point (page 32, item 10) the protective
plug (material no. R901476527) must be removed.
▶ After the zero point setting, ensure that the rubber
plug is correctly installed and seated.
▶ Without the protective plug or if the protective plug is
damaged, the protection class IP65 is no longer given.

Further information

▶ Subplates Data sheet 45100

▶ Hydraulic fluids on mineral oil basis Data sheet 90220
▶ Environmentally compatible hydraulic fluids Data sheet 90221
▶ Flame-resistant, water-free hydraulic fluids Data sheet 90222
▶ Flame-resistant hydraulic fluids – containing water Data sheet 90223
▶ Reliability characteristics according to EN ISO 13849 Data sheet 08012
▶ Installation, commissioning and maintenance of servo valves and high-response valves Data sheet 07700
▶ Hydraulic valves for industrial applications Data sheet 07600-B
▶ Assembly, commissioning and maintenance of hydraulic systems Data sheet 07900
▶ Information on available spare parts www.boschrexroth.com/spc
▶ CE Declaration of Conformity On request

Bosch Rexroth AG, RE 29106, edition: 2025-05

 Proportional directional valve | 4WREE  35/36

Notes

RE 29106, edition: 2025-05, Bosch Rexroth AG

36/36 4WREE | Proportional directional valve

Notes

Bosch Rexroth AG © All rights reserved to Bosch Rexroth AG, also regarding any disposal,
Industrial Hydraulics exploitation, reproduction, editing, distribution, as well as in the event of
Zum Eisengießer 1 applications for industrial property rights.
97816 Lohr am Main, Germany The data specified above only serve to describe the product. As our products
Phone +49 (0) 93 52 / 40 30 20 are constantly being further developed, no statements concerning a certain
my.support@boschrexroth.com condition or suitability for a certain application can be derived from our
www.boschrexroth.com 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.

Bosch Rexroth AG, RE 29106, edition: 2025-05