RE 29403, edition: 2017-01, Bosch Rexroth AG
Proportional directional valve, pilot-operated,
with integrated electronics (OBE)
Features
▶ 2/2-way version
▶ Cartridge valve
▶ Robust
– Pressure resistance up to 420 bar
– High vibration resistance (acc. to DINEN60068-2)
– Ambient temperature up to +60°C
▶ Precise
– High response sensitivity and little hysteresis
▶ Reliable
– High-quality and proven design
▶ Normalized
– Installation dimensions according to ISO 7368
▶ Flexible
– In connection with a pressure compensator pressure-
compensated flow control possible
▶ Safe
– Fail-safe position of the main stage in case of power
failure, cable break or disconnected enable
Contents
Features 1
Ordering code 2
Function, section, symbol 3
Technical data 4, 5
Integrated electronics (OBE) 6
Block diagram/controller function block 6; 7
Electrical connections and assignment 8
Characteristic curves 9 … 18
Dimensions 19 … 25
Accessories 26, 27
Further information 28
▶ Size 16 … 50
▶ Component series 1X
▶ Maximum operating pressure 420bar
▶ Maximum flow 1500 l/min (∆p = 5 bar)
RE 29403 
Edition: 2017-01
Replaces: 2016-02
H8069
Type 2WFCE
Inhalt
Features 1
Contents 1
Ordering code 2
Function, section, symbol 3
Technical data
(For applications outside these parameters, please consult
us!) 4
Technical data
(For applications outside these parameters, please consult
us!) 5
Integrated electronics (OBE) 6
Block diagram/controller function block: Version 6 + PE 6
Block diagram/controller function block: Version 11 + PE 7
Block diagram/controller function block: Version 11 + PE
7
Electrical connections and assignment 8
Characteristic curves: Size 16
(measured with HLP46, ϑ
Oil
= 40 ±5 °C) 9
Characteristic curves: Size 16
(measured with HLP46, ϑ
Oil
= 40 ±5 °C) 10
Characteristic curves: Size 25
(measured with HLP46, ϑ
Oil
= 40 ±5 °C) 11
Characteristic curves: Size 25
(measured with HLP46, ϑ
Oil
= 40 ±5 °C) 12
Characteristic curves: Size 32
(measured with HLP46, ϑ
Oil
= 40 ±5 °C) 13
Characteristic curves: Size 32
(measured with HLP46, ϑ
Oil
= 40 ±5 °C) 14
Characteristic curves: Size 40
(measured with HLP46, ϑ
Oil
= 40 ±5 °C) 15
Characteristic curves: Size 40
(measured with HLP46, ϑ
Oil
= 40 ±5 °C) 16
Characteristic curves: Size 50
(measured with HLP46, ϑ
Oil
= 40 ±5 °C) 17
Characteristic curves: Size 50
(measured with HLP46, ϑ
Oil
= 40 ±5 °C) 18
Dimensions: Size 16
(dimensions in mm) 19
Dimensions: Size 25
(dimensions in mm) 20
Dimensions: Size 32
(dimensions in mm) 21
Dimensions: Size 40
(dimensions in mm) 22
Dimensions: Size 50
(dimensions in mm) 23
Installation bore
(dimensions in mm) 24
Dimensions 25
Accessories (separate order) 26
Accessories (separate order) 27
Further information 28
2/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Ordering code
01 2 main ports 2
02 Pilot-operated proportional directional valve (cartridge valve) WFC
03 With integrated electronics (OBE) E
04 Size 16 16
Size 25 25
Size 32 32
Size 40 40
Size 50 50
05 Seat control spool S
Rated flow at 5 bar pressure differential
06 – Size 16
125 l/min 125
160 l/min 160
– Size 25
220 l/min 220
330 l/min 330
– Size 32
320 l/min 320
650 l/min 650
– Size 40
500 l/min 500
940 l/min 940
– Size 50
1000 l/min 1000
1500 l/min 1500
Flow characteristic
07 Linear L
08 Component series 10 … 19 (10 … 19: unchanged installation and connection dimensions) 1X
Seal material
09 NBR seals M
FKM seals V
Observe compatibility of seals with hydraulic fluid used. (Other seals upon request)
10 Supply voltage 24 V 24
Electrical interface
11 0 ... 10 VDC (connector 6+PE) A1
0 ... 10 VDC (connector 11+PE) B1
4 ... 20 mA (connector 11+PE) G1
12 Further details in the plain text *
01 02 03 04 05 06 07 08 09 10 11 12
2 WFC E S L – 1X / / 24 *
43
12
A
B
B
AX Y
Proportional directional valve | 2WFCE 3/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Set-up
The pilot-operated proportional directional valve
type2WFCE basically consists of:
▶ Cover (1)
▶ Main stage (2)
▶ Pilot control valve with proportional solenoid (3)
▶ Integrated electronics with position transducer and
analog interface (4)
Function, section, symbol
The integrated electronics (OBE) compare the specified
command value to the position actual value of the control
spool of the main stage (2). In case of control deviations,
the solenoid of the pilot control valve (3) is activated. In
this way, the control spool is adjusted. Depending on the
control deviation, the control chamber of the main
stage(2) is either pressurized with pilot oil (the main
stage closes) or unloaded (the main stage opens). Stroke
and orifice cross-section are controlled proportionally to
the command value until the control deviation is remedied.
For proper function, the following has to be observed:
▶ Direction of flow A → B (X connected to A)
▶ Direction of flow B → A (X connected to B)
Failure of supply voltage
If the minimum supply voltage fails or is fallen below, the
enable is disconnected (only interfaces B1 and G1) and in
case of a cable break of the solenoid conductor, the
integrated electronics (OBE) will de-energize the solenoid
of the pilot control valve (3). The control spool of the main
stage (2) moves securely to its seat using the pressure
available at port X and the force of the main stage spring
and blocks the flow between A and B.
Flow control function
In connection with a pressure compensator, the pilot-
operated proportional directional valve can be used for the
pressure-compensated control of a flow.
Notices:
▶ Representation according to
DINISO1219-1.
▶ Direction of flow
– A → B (X connected to A)
– B → A (X connected to B)
Symbol
4/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Technical data
(For applications outside these parameters, please consult us!)
general
Size NG 16 25 32 40 50
Weight kg 3.5 4.6 5.8 7.9 10.5
Installation position Any
Ambient temperature range °C –30 ... +60 (NBR seals)
–20 ... +60 (FKM seals)
Maximum storage time Years 1 (if the storage conditions are observed; refer to the operating
instructions 07600-B)
Vibration resistance ▶ Sine test according to DIN EN 60068-2-6 10 ... 2000Hz / maximum of 10g / 10 cycles / 3 axes
▶ Noise test according to DIN EN 60068-2-64 20 … 2000Hz / 10g
RMS
/ 30gpeak / 30min. / 3 axes
▶ Transport shock according to DIN EN 60068-2-27
15g / 11ms / 3 axes
Maximum relative humidity (no condensation) % 95
Maximum surface temperature °C 150
MTTFd value according to EN ISO 13849 Years 75 (for further details see data sheet 08012)
hydraulic
Maximum operating pressure
▶ Port A, B bar 420
Minimum operating pressure
▶ Port A (A → B) bar 12
▶ Port B (B → A) bar 20
Maximum pilot pressure ▶ Port X bar 420
Maximum return flow pressure
▶ Port Y bar 100
Rated flow (∆p = 5 bar)
1)
) l/min 125, 160 220, 330 320, 650 500, 940 1000, 1500
Maximum pilot flow
2)
l/min 3 5 7 9 9
Leakage flow
▶ Pilot control valve (at 100bar)
cm
3
/min < 150 < 200 < 200 < 400 < 400
▶ Main stage
– Interface A1 (0V) cm
3
/min
A → B and B → A blocked in a leakage-free manner (valve in seat position)
– Interface B1 (0V) cm
3
/min Depending on ∆p, see characteristic curves on page 9 …18
– Interface G1 (4mA) cm
3
/min Depending on ∆p, see characteristic curves on page 9 …18
– Interface B1, G1
3; 4; 5)
cm
3
/min
A → B and B → A blocked in a leakage-free manner (valve in seat position)
Pilot volume ▶ Main stage
2)
cm
3
1 2.7 6.4 12.6 24.5
Direction of flow ▶ Internal pilot oil supply
– A → B A connected to X
– B → A B connected to X
▶ External pilot oil supply
– A → B Pressure in X ≥ pressure in A
– B → A Pressure in X ≥ pressure in B
Hydraulic fluid See table page 5
Viscosity range ▶ Recommended mm
2
/s 20 … 100
▶ Maximum admissible mm
2
/s 15 … 380
Hydraulic fluid temperature range (flown-through) °C -20 … +60
Maximum admissible degree of contamination of the hydraulic fluid
cleanliness class according to ISO 4406 (c)
Class 18/16/13
5)
1)
Flow for deviating ∆p:
q
x
= q
V nom
x
∆p
x
5
2)
Stepped input signal (seat position at 100%, pilot pressure
100bar)
3)
Pin 3: 0 V
4)
Internal pilot oil supply: Observe leakage flow A → X or B → X via
pilot control valve to Y (see technical data leakage flow – pilot
control valve)
5)
External pilot oil supply: Leakage flow from A or B via the pilot
control valve is avoided; a minimum leakage flow X → B is,
however, possible
6)
The cleanliness classes specified for the components must be
adhered to 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.
Proportional directional valve | 2WFCE 5/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Technical data
(For applications outside these parameters, please consult us!)
Hydraulic fluid Classification Suitable sealing
materials
Standards Data sheet
Mineral oils HL, HLP NBR, FKM DIN 51524 90220
Flame-resistant ▶ Water-free HFDU based on glycol FKM ISO 12922 90222
Important information on hydraulic fluids:
▶ For further information and data on the use of other hydraulic
fluids, please refer to the data sheets above or contact us.
▶ There may be limitations regarding the technical valve data
(temperature, pressure range, life cycle, maintenance intervals,
etc.).
▶ The ignition temperature of the hydraulic fluid used must be 50K
higher than the maximum surface temperature.
static / dynamic
Hysteresis % < 0.2
Range of inversion % <0.1
Response sensitivity % <0.1
Manufacturing tolerance q
Vmax
% ≤ 10
Temperature drift %/40 K < 1
Zero compensation Ex plant ±1%
electrical, integrated electronics (OBE)
Relative duty cycle % 100 (continuous operation)
Protection class according to EN 60529 IP 65 with mating connector mounted and locked
Supply voltage ▶ Nominal voltage VDC 24
▶ Lower limit value VDC 18
▶ Upper limit value VDC 36
▶ Maximum admissible
residual ripple
Vss 2.5 (Comply with absolute supply voltage limit value)
Current consumption ▶ Maximum A 2
▶ Impulse current A 3
Maximum power consumption W 50
Functional earth and screening
See connector pin assignment (CE-compliant installation) page 8
Required fuse protection, external A 2.5 time-lag
Adjustment
Calibrated in the plant, see characteristic curves page 9 ... 18
Conformity CE according to EMC Directive 2004/108/EC
tested according to EN 61000-6-2 and EN 61000-6-3
6/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Integrated electronics (OBE)
Function
1. Switch-on procedure/Fault behavior
After applying the supply voltage of 24V, the electronics
are ready for operation provided that the following
conditions are met:
▶ Supply voltage U
B
> 18 VDC
▶ Connection to solenoid not interrupted
▶ Command value line not interrupted and command
value >2.7mA (interface "G1" only)
If one of the conditions is not met, the controllers and the
output stage will be blocked and the ready for operation
signal to pin11 (interface "B1" and "G1" only) will be set
to 0V.
2. Actual value output signals
▶ Electrical interfaces "A1" (pinF) and "B1" (pin6)
– "A1": 0.35V … +10V corresponds to 0% … 100%
valve opening; orifice spool in seat position if actual
value < -2.5V
– "B1": 0V … +10V corresponds to 0% … 100%
valve opening; orifice spool in seat position if actual
value < -1.5V
▶ Electrical interface "G1" (pin6)
– 4mA … +20mA corresponds to 0% … 100%
valve opening; orifice spool in seat position if actual
value < 2.7mA
Block diagram/controller function block: Version 6 + PE
D
E
U/I
U
X
Y
U
I
VS
F
C
A
B
U/I
U
DC
DC
+15 V, 10 mA
–Vref = -3,3V
M0
+(7,5-8) V, 50 mA
+3,3V, 10mA
– (7,5-8) V, 50 mA
&
24
V
0 V
Command value
Short-circuit of solenoid
Cable break
of solenoid
Amplifier
differential
Position
transducer
Protection
circuit
Protection
circuit
Protection
circuit
Actual
value
output
Controller
Demodulator
Sinus
oscillator
Output
stage
Command
value
enable
Actual value
Command value reference
Actual value reference
Supply voltage
Notices:
▶ Electrical interface "A1"
– in opening direction: Valve active if command value ≥0.5V
– in closing direction: Valve deactivated if command value
≤0.3V ("on seat")
▶ Electrical interfaces "B1" and "G1"
– in opening direction: Valve active if enable pin3 is set,
command value >-1V ("B1") or >2mA ("G1")
– in closing direction: Valve deactivated if enable pin3 is not
set, command value <-1V ("B1") or <2mA ("G1")
("onseat")
Command value "B1" and "G1" "A1"
Without enable
–
0 V
>0V … 0.35V
>0.35V … <0.5V
>0.5V
Inverse-
polarity
protection
Proportional directional valve | 2WFCE 7/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Block diagram/controller function block: Version 11 + PE
4
5
11
U/I
U
U
I
VS
6
7
1
10
9
8
2
U/I
U
DC
DC
+15 V, 10 mA
–Vref = -3,3V
M0
+(7,5-8) V, 50 mA
+3,3V, 10mA
– (7,5-8) V, 50 mA
&
24
V
0 V
3
Command value
Enable input
Short-circuit of solenoid
Cable break
of solenoid
Amplifier
differential
Position
transducer
Protection
circuit
Protection
circuit
Protection
circuit
Inverse-
polarity
protection
Actual
value
output
Controller
Demodulator
Sinus
oscillator
Output
stage
Cable
break (G1)
Enable
Actual value
Ready for operation
free
free
free
Command value reference
Actual value reference
Supply voltage
Notices:
▶ Electrical interface "A1"
– in opening direction: Valve active if command value ≥0.5V
– in closing direction: Valve deactivated if command value
≤0.3V ("on seat")
▶ Electrical interfaces "B1" and "G1"
– in opening direction: Valve active if enable pin3 is set,
command value >-1V ("B1") or >2mA ("G1")
– in closing direction: Valve deactivated if enable pin3 is not
set, command value <-1V ("B1") or <2mA ("G1")
("onseat")
Command value "B1" and "G1" "A1"
Without enable
–
0 V
>0V … 0.35V
>0.35V … <0.5V
>0.5V
8/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Electrical connections and assignment
Pin Core
marking
1)
Interface assignment
6 + PE 11 + PE "A1" (6 + PE) "B1"(11 + PE) "G1"(11 + PE)
A 1 1 Supply voltage 24 VDC
B 2 2 GND
C 3 3
Reference potential actual value
Enable input 24 VDC (high ≥ 12V; low ≤5V)
D 4 4 Command value 0…10V Command value 4…20mA
E 5 5 Reference potential command value
F 6 6 Actual value 0…10V Actual value 4…20mA
7 7 Reference potential actual value
8 8 –
9 9 –
10 10 –
11 11 – Switching output 24V – fault-free operation (supply
voltage-1V)/fault (0V) or power circuit signal), maximum
50mA
PE PE green-yellow Functional earth (directly connected to the valve housing)
A
C
B
PE
F
E
D
F
1
2
3
4
5
6
7
8
PE
9
10
11
Connector pin assignment
1)
Core marking of the connection lines for mating connector with
cable set, see accessories, page 26 and 27
0
0
50
100
150
200
250
300
350
400
12345678910
1
2
3
0
0
50
100
150
200
250
300
350
400
12345678910
1
2
3
Proportional directional valve | 2WFCE 9/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Characteristic curves: Size 16
(measured with HLP46, ϑ
Oil
= 40 ±5 °C)
Flow/signal function
Version "125" (A→B; B→A)
Version "160" (A→B; B→A)
Command value in V →
Command value in V →
Flow in l/min →Flow in l/min →
1 Pressure differential 20 bar
2 Pressure differential 10 bar
3 Pressure differential 5 bar
0
0
2
4
6
8
50 100 150 200 250 300 350 400 420
04080 120 160 200 04080 120 160 200
0
10
20
30
40
50
60
70
80
90
100
110203040506080 100
-40
-30
-60
-90
-120
-150
-180
-210
-240
-270
-35
-30
-25
-20
-15
-10
-5
0
5
10/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Characteristic curves: Size 16
(measured with HLP46, ϑ
Oil
= 40 ±5 °C)
Leakage as a function of the pressure differential
(Command value: A1 – 0.5V; B1 – 0V; G1 – 4mA)
Transition function with stepped electric input signals
(p
A
= 100bar)
Frequency response (p
A
= 100bar)
Pressure differential in bar →
Time in ms →
Frequency in Hz →
Flow in l/min →Stroke in % →Amplitude ratio in dB →
Phase angle in ° →
Scatter range
Step responses in %:
5 – 100 – 5
10 – 90 – 10
25 – 75 – 25
Signals in %:
5 – 100 – 5
10 – 90 – 10
25 – 75 – 25
0
0
50
100
150
200
250
300
350
400
12345678910
1
2
3
0
0
100
200
300
400
500
600
700
800
12345678910
1
2
3
Proportional directional valve | 2WFCE 11/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Characteristic curves: Size 25
(measured with HLP46, ϑ
Oil
= 40 ±5 °C)
Flow/signal function
Version "220" (A→B; B→A)
Version "330" (A→B; B→A)
Command value in V →
Command value in V →
Flow in l/min →Flow in l/min →
1 Pressure differential 20 bar
2 Pressure differential 10 bar
3 Pressure differential 5 bar
04080 120 160 200 04080 120 160 200
0
10
20
30
40
50
60
70
80
90
100
0
0
2
4
6
18
8
10
12
14
16
50 100 150 200 250 300 350 400 420
110203040506080 100
-40
-35
-30
-25
-20
-15
-10
-5
0
5
-30
-60
-90
-120
-150
-180
-210
-240
-270
12/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Characteristic curves: Size 25
(measured with HLP46, ϑ
Oil
= 40 ±5 °C)
Leakage as a function of the pressure differential
(Command value: A1 – 0.5V; B1 – 0V; G1 – 4mA)
Transition function with stepped electric input signals
(p
A
= 100bar)
Frequency response (p
A
= 100bar)
Pressure differential in bar →
Flow in l/min →Stroke in % →
Scatter range
Step responses in %:
5 – 100 – 5
10 – 90 – 10
25 – 75 – 25
Signals in %:
5 – 100 – 5
10 – 90 – 10
25 – 75 – 25
Frequency in Hz →
Amplitude ratio in dB →
Phase angle in ° →
Time in ms →
0
0
100
200
300
700
400
500
600
12345678910
1
2
3
0
0
200
400
600
800
1000
1200
1400
12345678910
1
2
3
Proportional directional valve | 2WFCE 13/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Characteristic curves: Size 32
(measured with HLP46, ϑ
Oil
= 40 ±5 °C)
Flow/signal function
Version "320" (A→B; B→A)
Version "650" (A→B; B→A)
Command value in V →
Command value in V →
Flow in l/min →Flow in l/min →
1 Pressure differential 20 bar
2 Pressure differential 10 bar
3 Pressure differential 5 bar
0 100 200 300 100 200 300400 0 400
0
10
20
30
40
50
60
70
80
90
100
0
0
2
4
6
18
8
10
12
14
16
50 100 150 200 250 300 350 400 420
110203040506080 100
-40
-35
-30
-25
-20
-15
-10
-5
0
5
-30
-60
-90
-120
-150
-180
-210
-240
-270
14/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Characteristic curves: Size 32
(measured with HLP46, ϑ
Oil
= 40 ±5 °C)
Leakage as a function of the pressure differential
(Command value: A1 – 0.5V; B1 – 0V; G1 – 4mA)
Transition function with stepped electric input signals
(p
A
= 100bar)
Frequency response (p
A
= 100bar)
Pressure differential in bar →
Flow in l/min →Stroke in % →
Scatter range
Step responses in %:
5 – 100 – 5
10 – 90 – 10
25 – 75 – 25
Signals in %:
5 – 100 – 5
10 – 90 – 10
25 – 75 – 25
Frequency in Hz →
Amplitude ratio in dB →
Phase angle in ° →
Time in ms →
0
0
200
400
600
1400
800
1200
1000
12345678910
1
2
3
0
0
200
400
600
800
1000
1200
1400
1600
1800
2200
2000
12345678910
1
2
3
Proportional directional valve | 2WFCE 15/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Characteristic curves: Size 40
(measured with HLP46, ϑ
Oil
= 40 ±5 °C)
Flow/signal function
Version "500" (A→B; B→A)
Version "940" (A→B; B→A)
Command value in V →
Command value in V →
Flow in l/min →Flow in l/min →
1 Pressure differential 20 bar
2 Pressure differential 10 bar
3 Pressure differential 5 bar
0 100 200 300 100 200 300400 0 400
0
10
20
30
40
50
60
70
80
90
100
0
0
2
4
6
18
8
10
12
14
16
50 100 150 200 250 300 350 400 420
110203040506080 100
-40
-35
-30
-25
-20
-15
-10
-5
0
5
-30
-60
-90
-120
-150
-180
-210
-240
-270
16/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Characteristic curves: Size 40
(measured with HLP46, ϑ
Oil
= 40 ±5 °C)
Leakage as a function of the pressure differential
(Command value: A1 – 0.5V; B1 – 0V; G1 – 4mA)
Transition function with stepped electric input signals
(p
A
= 100bar)
Frequency response (p
A
= 100bar)
Pressure differential in bar →
Flow in l/min →Stroke in % →
Scatter range
Step responses in %:
5 – 100 – 5
10 – 90 – 10
25 – 75 – 25
Signals in %:
5 – 100 – 5
10 – 90 – 10
25 – 75 – 25
Frequency in Hz →
Amplitude ratio in dB →
Phase angle in ° →
Time in ms →
0
0
200
400
600
800
1000
1200
1400
1600
1800
2000
12345678910
1
2
3
0
0
200
400
600
800
1000
1200
1400
1600
1800
2000
12345678910
1
2
3
Proportional directional valve | 2WFCE 17/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Characteristic curves: Size 50
(measured with HLP46, ϑ
Oil
= 40 ±5 °C)
Flow/signal function
Version "1000" (A→B; B→A)
Version "1500" (A→B; B→A)
Command value in V →
Command value in V →
Flow in l/min →Flow in l/min →
1 Pressure differential 20 bar
2 Pressure differential 10 bar
3 Pressure differential 5 bar
0 100 200 300 100 200 300400 0 400
0
10
20
30
40
50
60
70
80
90
100
0
0
2
4
6
20
8
10
12
14
16
18
50 100 150 200 250 300 350 400 420
110203040506080 100
-40
-35
-30
-25
-20
-15
-10
-5
0
5
-30
-60
-90
-120
-150
-180
-210
-240
-270
18/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Characteristic curves: Size 50
(measured with HLP46, ϑ
Oil
= 40 ±5 °C)
Leakage as a function of the pressure differential
(Command value: A1 – 0.5V; B1 – 0V; G1 – 4mA)
Transition function with stepped electric input signals
(p
A
= 100bar)
Frequency response (p
A
= 100bar)
Pressure differential in bar →
Flow in l/min →Stroke in % →
Scatter range
Step responses in %:
5 – 100 – 5
10 – 90 – 10
25 – 75 – 25
Signals in %:
5 – 100 – 5
10 – 90 – 10
25 – 75 – 25
Frequency in Hz →
Amplitude ratio in dB →
Phase angle in ° →
Time in ms →
Rzmax 4
0,01/100
4
5
35
1
2
215
95
286 15
83
175
12
42
Ø25g6
Ø32e9
32,5
1,5
65
47
5056
29,5
Proportional directional valve | 2WFCE 19/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Dimensions: Size 16
(dimensions in mm)
Notice:
The dimensions are nominal dimensions which are subject to
tolerances.
Item explanations and valve mounting screws
see page 25.
Required surface quality of
the valve contact surface
Rzmax 4
0,01/100
4
5
35
1
2
231
95
302 15
175
12
5072
39
42Ø34g6
Ø45e9
42,5
1,5
93
85
47
20/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Dimensions: Size 25
(dimensions in mm)
Notice:
The dimensions are nominal dimensions which are subject to
tolerances.
Item explanations and valve mounting screws
see page 25.
Required surface quality of
the valve contact surface
4
5
35
1
2
244
50
95
85
35
315 15
42Ø45g6
Ø60e9
50
1,5
100
175
12
100
Rzmax 4
0,01/100
Proportional directional valve | 2WFCE 21/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Dimensions: Size 32
(dimensions in mm)
Notice:
The dimensions are nominal dimensions which are subject to
tolerances.
Item explanations and valve mounting screws
see page 25.
Required surface quality of
the valve contact surface
Rzmax 4
0,01/100
4
5
35
264
95
335 15
12
1
2
50105
40
22
Ø55g6
Ø75e9
62,5
1,5
125 45
190
125
22/28
2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Dimensions: Size 40
(dimensions in mm)
Notice:
The dimensions are nominal dimensions which are subject to
tolerances.
Item explanations and valve mounting screws
see page 25.
Required surface quality of
the valve contact surface
Rzmax 4
0,01/100
4
5
35
281
95
352 15
12
1
Ø68g6
Ø90e9
70
140 38
190
140
50
122
32
47
2
Proportional directional valve | 2WFCE 23/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Dimensions: Size 50
(dimensions in mm)
Notice:
The dimensions are nominal dimensions which are subject to
tolerances.
Item explanations and valve mounting screws
see page 25.
Required surface quality of
the valve contact surface
Rzmax 4
x
=
Rzmax 8
y
=
Rz 10
z
=
ØD3H9
H2
+0,1
H8
H7
H3
+0,1
H6
H5
15
°
ØD2
ØD4
H1
15°
ØD1
A
B
9
9
11 10 12
L1
L4
±0,2
L6±0,2
X
Y
L7±0,2
„A“
L2
L3
L4
±0,2
L5±0,2 L5±0,2
„A“
87
6
H4
D5
H10
D7H13
ØD6
ØD6
y
y
z
0,1 A
y
0,01 / 100
A
Ø0,03 A
24/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Installation bore
(dimensions in mm)
Installation dimensions according to DIN ISO 7368
NG 16 25 32 40 50
ØD1H7 32 45 60 75 90
ØD2 16 25 32 40 50
ØD3 16 25 32 40 50
max. ØD3 25 32 40 50 63
ØD4H7 25 34 45 55 68
D5 M8 M12 M16 M20 M20
max. ØD6 4 6 8 8 10
ØD7H13 4 6 6 6 8
H1 34 44 52 64 72
H1
1)
29.5 40.5 48 59 65.5
H2 56 72 85 105 122
H3 43 58 70 87 100
H4 20 25 35 45 45
H5 11 12 13 15 17
H6 2 2.5 2.5 3 3
H7 20 30 30 30 35
H8 2 2.5 2.5 3 4
min. H9
2)
0.5 1 1.5 2.5 2.5
min. H10 8 8 8 8 8
L1 65 85 100 125 140
L2 83 93 100 125 140
L3 32.5 42.5 50 62.5 70
L4 46 58 70 85 100
L5 25 33 41 50 58
L6 10.5 16 17 23 30
L7 23 29 35 42.5 50
NG Installation dimensions according to DIN ISO 7368
16 ISO 7368-BA-06-2-A
25 ISO 7368-BB-08-2-A
32 ISO 7368-BC-09-2-A
40 ISO 7368-BD-10-2-A
50 ISO 7368-BE-11-2-A
1)
Bore center at ØD3 max.
2)
Control dimension
Tolerances according to: General tolerances ISO 2768-mK
Item explanations and valve mounting screws
see page 25.
Section A – A
Proportional directional valve | 2WFCE 25/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Dimensions
1 Cover
2 Main stage
3 Pilot control valve with proportional solenoid
4 Integrated electronics with position transducer and analog
interface
5 Space required to remove the mating connectors
6 Port X
7 Port Y
8 Locating hole for locking pin
9 Depth of fit
10 Control dimension
11 Port B may be at any position around the central axis of port
A. However, it must be observed that the mounting bores and
the control bores are not damaged.
12 If a different diameter is used for port B than indicated in the
dimensional table, the distance from the cover support
surface to the bore center must be calculated.
Valve mounting screws (separate order)
Size Hexagon socket head cap screws Material number
16 4 hexagon socket head cap screws ISO 4762 - M8 x 30 - 10.9 - N67F 821 70
(galvanized according to Bosch standard N67F821 70)
Tightening torque M
A
= 35 ±5 Nm
2910151246
25 4 hexagon socket head cap screws ISO 4762 - M12 x 40 - 10.9 - N67F 821 70
(galvanized according to Bosch standard N67F821 70)
Tightening torque M
A
= 105 ±15 Nm
2910151346
32 4 hexagon socket head cap screws ISO 4762 - M16 x 50 - 10.9 - N67F 821 70
(galvanized according to Bosch standard N67F821 70)
Tightening torque M
A
= 265 ±25 Nm
2910151442
40 4 hexagon socket head cap screws ISO 4762 - M20 x 60 - 10.9 - N67F 821 70
(galvanized according to Bosch standard N67F821 70)
Tightening torque M
A
= 500 ±50 Nm
2910151526
50
26/28 2WFCE | Proportional directional valve
Bosch Rexroth AG, RE 29403, edition: 2017-01
Connector connection, version 6 + PE
Mating connector Version Material number
Round connector according to EN 175201-804
(7-pole, plastic variant)
Mating connector (assembly kit) for a cable diameter of
6.5 ... 11mm
R900021267
Mating connector with 3m cable, 7 x 0.75mm
2
, assembled R901420483
Mating connector with 5m cable, 7 x 0.75mm
2
, assembled R901420491
Mating connector with 10m cable, 7 x 0.75mm
2
, assembled R901420496
91
Ø27
A
B
C
D
E
F
Round connector according to EN 175201-804
(7-pole, metal design)
Mating connector (assembly kit) for a cable diameter of
8.0 ... 13.5mm
R900223890
A
B
C
D
E
F
85 Ø28,4
Accessories (separate order)
Proportional directional valve | 2WFCE 27/28
RE 29403, edition: 2017-01, Bosch Rexroth AG
Connector connection, version 11 + PE
Mating connector Version Material number
Mating connector according to
DIN EN 175201-804 (12-pole, metal design)
Mating connector (assembly kit) for a cable diameter of
12 ... 15mm
R901268000
Mating connector with 5 m cable, 12 x 0.75 mm
2
with cable
shield, assembled
R901272854
Mating connector with 20 m cable, 12 x 0.75 mm
2
with
cable shield, assembled
R901272852
41
~9
1Ø
28
SW22
M26 x 1,5
SW24
1
2
45
6
7
8
9
11
10
3
Mating connector according to
DIN EN 175201-804 (12 pole, plastic variant)
Mating connector (assembly kit) R900884671
Mating connector with 2 x 5m cable, supply line
(3 x 1.0mm
2
) and signal line (10 x 0.14mm
2
) separated,
with cable shield, assembled
R900032356
Mating connector with 2 x 20m cable, supply line
(3 x 1.0mm
2
) and signal line (10 x 0.14mm
2
) separated,
with cable shield, assembled
R900860399
1
2
45
6
7
8
9
11
10
3
33
90
Accessories (separate order)
Bosch Rexroth AG, RE 29403, edition: 2017-01
28/28 2WFCE | Proportional directional valve
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 information set
forth in it, are the exclusive property of Bosch Rexroth AG. It may not be
reproduced or given to third parties without its consent.
The data specified above only serve to describe the product. No statements
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.
Further information
▶ 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 (HFAE, HFAS, HFB, HFC) Data sheet 90223
▶ Reliability characteristics according to ENISO13849 Data sheet 08012
▶ Hydraulic valves for industrial applications Operating instructions 07600-B
▶ Selection of filters www.boschrexroth.com/filter
▶ Information on available spare parts www.boschrexroth.com/spc