1/12
Information on available spare parts:
www.boschrexroth.com/spc
4/3, 4/2 and 3/2 directional valve
with mechanical, manual and
fluidic actuation
Types WM., WN, WP and WHD
Size 10
Component series 3X
Maximum operating pressure 315 bar [4569 psi]
Maximum flow 120 l/min [31.7 US gpm]
RE 22331/11.07
Replaces: 02.03
Table of contents Features
– Direct operated directional spool valve
– Type of actuation:
•Rollerplunger
•Handlever
•Rotaryknob
•Pneumatic
•Hydraulic
– PortingpatterntoISO4401-05-04-0-05,
NFPAT3.5.1R2andANSIB93-7D05
– For subplates, see data sheet RE 45054 (separate order)
Content Page
Features 1
Orderingcode 2
Spool symbols 3
Actuatingelements 4, 5
Function, section 6
Technical data 7, 8
Characteristic curves 9
Performancelimits 9
Unit dimensions 10 to 12
H5554
Inhalt
Table of contents 1
Features 1
Orderingcode 2
Spool symbols 3
Type of actuation: Fluidic actuation 4
Type of actuation: Mechanical, manual actuation 5
Function, section 6
Technical data (for applications outside these parameters,
please consult us!) 7
Technical data (for applications outside these parameters,
please consult us!) 8
Characteristic curves(measuredwithHLP46,ϑ
oil ( =190SUS)
=
40 °C ± 5 °C [104 °F ± 9 °F]) 9
Performancelimits(measuredwithHLP46,
oil ( =190SUS)
= 40
°C ± 5 °C [104 °F ± 9 °F]) 9
Unit dimensions (dimensions in mm [inch]) 10
Unit dimensions (dimensions in mm [inch]) 11
Unit dimensions (dimensions in mm [inch]) 12
2/12 Bosch Rexroth AG Hydraulics WM., WN, WP, WHD RD 22331/11.07
Ordering code
3 main ports = 3
4 main ports = 4
– Mechanical, manual actuation:
Roller plunger = WMR
1)
Roller plunger = WMU
1)
Handlever = WMM
Rotaryknob = WMD
Rotaryknob,lockable = WMDA
2)
– Fluidic actuation:
Pneumatic = WN
(Pilotpressure1.5to6bar[21.8 to
87 psi])
Pneumatic = WP
(Pilotpressure4.5to12bar[65.3 to
174 psi])
Hydraulic = WHD
Size 10 = 10
Symbols,e.g.C,E,EA,EB,seepage3
Componentseries30to39 = 3X
(30to39:unchangedconnectionandinstallationconnections)
With spring return = No code
Without spring return = O
With detent = F
Without spring return, with detent = OF
Spool po-
sitions
Type
2 3
WMR
WMU
WMM
WMD
WMDA
WN
WP
WHD
No code • • • • • • • •
O • • • •
F • • • • •
OF • • • •
•=available
Further details in clear text
Seal material
No code = NBRseals
V = FKM seals
(other seals on request)
Attention!
Observecompatibilityofsealswithhydraulic
fluid used!
No code = Without throttle insert
B08
3)
= Throttle Ø 0.8 mm [0.0315 inch]
B10
3)
= Throttle Ø 1.0 mm [0.0394 inch]
B12
3)
= Throttle Ø 1.2 mm [0.0472 inch]
10 3X
*
Standard types and components can be found
in the EPS (standard price list).
1)
See page 11
2)
Key
– Series 30: Material no. R900006980,
– From series 31: Material no. R900008158,
is included in the scope of supply.
3)
To be used, if flow > performance of the valve, effec-
tiveinP-channel.
Note!
Directionalvalveswithrotaryknobaregenerallypro-
vided with a detent. Directional valves with hand lever
areoptionallyavailableas2-or3-positionvalve,and
withhydraulicorpneumaticactuationonlyas2-po-
sition valve with detent. Directional valves with roller
plunger are generally designed without detent.
Depending on the valve type, when actuating ele-
ments with detents are used, each spool position can
belocked.
When actuating elements without return spring and
withoutdetentareused,thespoolpositioninthenon-
operated state is not defined.
A B
PT
ab
ab
A B
PT
= A
= C
= D
ab
A B
PT
ab
A B
PT
= B
= Y
= L
= M
= E
1)
= F
= G
= H
= J
A B
PT
a0
a0
AB
PT
b b
A B
PT
a0
a0
AB
PT
A B
PT
0
0
AB
PT
b b
= .A
1)
= .B
1)
= R
= T
= U
= V
= W
= P
= Q
Hydraulics Bosch Rexroth AGRD 22331/11.07 WM., WN, WP, WHD
3/12
Spool symbols
1)
Example:
– Spool symbol E with spool position “a":
Orderingcode..EA..
– Spool symbol E with spool position “b“
Orderingcode..EB..
4/12 Bosch Rexroth AG Hydraulics WM., WN, WP, WHD RD 22331/11.07
Type of actuation: Fluidic actuation
1)
See Spool symbols on page 3
Ordering code Type of actuation
Spool
symbol
Actuating
side
Detent
Pneumatic
TypeWN,WP
Hydraulic
TypeWHD
A, C, D
ab
AB
PT
ba
ab
AB
PT
ba
../O..
ab
b
AB
PT
a
ab
b
AB
PT
a
../OF..
ab
AB
PT
ba
ab
AB
PT
ba
B, Y
ab
AB
PT
ba
ab
AB
PT
ba
E, F,
G, H,
J, L
M, P,
Q, R,
T, U,
V, W
“a“
1)
= .A
a0
AB
PT
a
a0
AB
PT
a
“b“
1)
= .B
0b
AB
PT
b
0b
AB
PT
b
0b
AB
PT
b
a
a
0b
AB
PT
b
a
a
Hydraulics Bosch Rexroth AGRD 22331/11.07 WM., WN, WP, WHD
5/12
1)
See Spool symbols on page 3
Ordering code Type of actuation
Spool
symbol
Actuating
side
Raste
Roller plunger
Type WMR, WMU
Hand lever
Type WMM
Rotary knob
TypeWMD,WMDA
A, C, D
../F..
ab
A B
PT
ab
A B
PT
B, Y
ab
A B
PT
ab
A B
PT
../F..
ab
A B
PT
E, F,
G, H,
J, L
M, P,
Q, R,
T, U,
V, W
“a“
1)
= .A
../F..
a0
A B
PT
“b“
1)
= .B
../F..
0b
A B
PT
0b
A B
PT
../F..
0ba
A B
PT
0ba
A B
PT
0ba
A B
PT
0b
A B
PT
a
Type of actuation: Mechanical, manual actuation
TA ABTBP
13 4
X
TA
5
2.1
TA ABTBP
2.2 41 3
5
2.2
4
P
6/12 Bosch Rexroth AG Hydraulics WM., WN, WP, WHD RD 22331/11.07
Valves of type WM. are mechanically, manually operated di-
rectionalspoolvalves,thoseoftypesWN,WPandWHDare
fluidically operated.
They control the start, stop and direction of a flow.
Type 4WMM 10 E3X/...
Type 4WMM 10 E3X/F/... (with detent)
Function, section
These directional valves basically consist of housing (1), one
actuating element (2.1) (roller plunger, hand lever, rotary
knob)ortwoactuatingelements(2.2)(hydraulic,pneumatic
actuator), control spool (3) and one or two return springs (4).
Inthenon-operatedcondition,controlspool(3)isheldbyre-
turnsprings(4)–inthecaseofrotaryknoboperationbyde-
tent (5) – in the central or initial position (an exception are im-
pulse spools with hydraulic or pneumatic actuation).
The actuating elements shift control spool (3) to the desired
position.
Type 4WHD 10 D3X/OF...
(with detent – impulse spool)
Type 4WHD 10 E3X/...
Throttle insert
The use of a throttle insert is required, if, due to given oper-
ating conditions, flows may occur during shifting operations,
which exceed the performance limit of the valve.
TheyaretobeinsertedintheP-channelofthedirectional
valve.
Hydraulics Bosch Rexroth AGRD 22331/11.07 WM., WN, WP, WHD
7/12
Technical data (for applications outside these parameters, please consult us!)
1)
SuitableforNBRandFKMseals
2)
OnlysuitableforFKMseals
3)
The cleanliness classes specified for components must be
adhered to in hydraulic systems. Effective filtration prevents
malfunction and, at the same time, prolongs the service life
of components.
For the selection of filters, see data sheets RE50070,
RE50076,RE50081,RE50086,RE50087andRE50088.
General
Valve type WMR, WMU WMM WMD,WMDA
Weight
kg[lbs] 3.3 [7.3] 3.8 [8.4] 3.7[8.2]
Actuatingforce – With detent
N [lbf]
– 16 to 23
[3.6 to 5.1]
30 [6.7]
– With spring return
N [lbf]
– 20to27
[4.5 to 6.1]
–
– 2 spool positions
N [lbf]
70to140
[15.7 to 31.5]
– –
– 3 spool positions
N [lbf]
70to175
[15.7 to 39.3]
– –
Installation position Optional
Ambienttemperaturerange
°C [°F] –30 to +80 [–22 to +176](NBRseals)
–20 to +80 [–4 to +176] (FKM seals)
Hydraulic
Maximum operating pressure –PortsA,B,P
bar [psi] 315 [4569]
–PortT
bar [psi] 160 [2320]
WithsymbolAorB,portTmustbeusedasleakage
oil port, if the operating pressure is higher than the
permissibletankpressure.
Maximum flow
l/min [US gpm] 120 [31.7]
Flowcross-section(spool
position 0)
– Spool symbol V
mm
2
[inch
2
] 11 [0.017](A/B→T);10.3[0.016](P→A/B)
– Spool symbol W
mm
2
[inch
2
] 2.5 [0.004](A/B→T)
– Spool symbol Q
mm
2
[inch
2
] 5.5 [0.009](A/B→T)
Hydraulicfluid Mineraloil(HL,HLP)toDIN51524
1)
;fastbio-de-
gradablehydraulicfluidstoVDMA24568(seealso
RE90221);HETG(rapeseedoil)
1)
;HEPG(polyg-
lycols)
2)
;HEES(syntheticesters)
2)
;otherhydraulic
fluids on request
Hydraulicfluidtemperaturerange
°C [°F] –30 to +80 [–22 to +176](NBRseals)
–20 to +80 [–4 to +176] (FKM seals)
Viscosity range
mm
2
/s [SUS] 2.8 to 500 [35 to 2320]
Permissiblemax.degreeofcontaminationofthe
hydraulicfluid-cleanlinessclasstoISO4406(c)
Class 20/18/15
3)
– Mechanical, manual actuation
8/12 Bosch Rexroth AG Hydraulics WM., WN, WP, WHD RD 22331/11.07
Technical data (for applications outside these parameters, please consult us!)
Hydraulic
Maximum operating pressure –PortsA,B,P
bar [psi] 315 [4569]
–PortT
bar [psi] 160 [2320]
WithsymbolAorB,portTmustbeusedasleakage
oil port, if the operating pressure is higher than the
permissibletankpressure.
Pilotpressure
bar [psi]
1.5 to 6
[22 to 87]
4.5 to 12
[65 to 174]
5 to 160
[73 to 2320]
Maximum flow
l/min [US gpm] 120 [31.7]
Flowcross-section(spool
position 0)
– Spool symbol V
mm
2
[inch
2
] 11 [0.017](A/B→T);10.3[0.016](P→A/B)
– Spool symbol W
mm
2
[inch
2
] 2.5 [0.004](A/B→T)
– Spool symbol Q
mm
2
[inch
2
] 5.5 [0.009](A/B→T)
Pilotvolume
cm
3
[inch
3
] 12.4 [0.76] 3.83 [0.23] 3.83 [0.23]
Hydraulicfluid Mineraloil(HL,HLP)toDIN51524
1)
;fastbio-de-
gradablehydraulicfluidstoVDMA24568(seealso
RE90221);HETG(rapeseedoil)
1)
;HEPG(polyg-
lycols)
2)
;HEES(syntheticesters)
2)
;otherhydraulic
fluids on request
Hydraulicfluidtemperaturerange
°C [°F] –30 to +80 [–22 to +176](NBRseals)
–20 to +80 [–4 to +176] (FKM seals)
Viscosity range
mm
2
/s [SUS] 2.8 to 500 [35 to 2320]
Permissiblemax.degreeofcontaminationofthe
hydraulicfluid-cleanlinessclasstoISO4406(c)
Class 20/18/15
3)
Switching time –ON ms 10 to 35 10 to 25 15 to 30
–OFF ms 20 to 45 10 to 25 15 to 30
1)
SuitableforNBRandFKMseals
2)
OnlysuitableforFKMseals
3)
The cleanliness classes specified for components must be
adhered to in hydraulic systems. Effective filtration prevents
malfunction and, at the same time, prolongs the service life
of components.
For the selection of filters, see data sheets RE50070,
RE50076,RE50081,RE50086,RE50087andRE50088.
General
Valve type WN WP WHD
Weight – 1 actuator
kg[lbs] 3.0 [6.6] 3.0 [6.6] 3.0 [6.6]
– 2 actuators
3.3 [7.3] 3.3 [7.3] 3.3 [7.3]
Installation position Optional
Ambienttemperaturerange
°C [°F] –30 to +80 [–22 to +176](NBRseals)
–20 to +80 [–4 to +176] (FKM seals)
– Fluidic actuation
1109080706050403020100
1
2
3
4
5
6
7
8
9
10
11
14
13
12
100 120
6
5
4
3
2
1
78
[0]
[20]
[5]
[0]
[10] [15] [20] [25] [31.7]
[203]
[40]
[60]
[80]
[100]
[120]
[140]
[160]
[180]
1109080706050403020100
50
100
150
200
250
315
300
100 120
1 2 3
4 5
6
7
[5]
[0]
[10] [15] [20] [25] [31.7]
[0]
[500]
[4569]
[1000]
[1500]
[2000]
[2500]
[3000]
[3500]
[4000]
Hydraulics Bosch Rexroth AGRD 22331/11.07 WM., WN, WP, WHD
9/12
Characteristic curves(measuredwithHLP46,ϑ
oil ( = 190 SUS)
= 40 °C ± 5 °C [104 °F ± 9 °F])
∆p-q
V
characteristic curves
Pressuredifferentialinbar[psi] →
Flow in l/min [US gpm] →
Spool
symbols
Direction of flow
P–A P–B A–T B–T
A 4 3 – –
B 3 4 – –
C 3 3 4 4
D 3 3 5 5
E 2 2 4 4
F 1 2 3 4
G,T 4 4 7 7
H 1 1 5 5
J 2 2 3 3
L 3 3 2 4
M 1 1 4 4
P 3 1 5 5
Q 2 2 2 2
R 3 4 3 –
U 3 3 5 2
V 2 2 3 3
W 3 3 3 3
Y 4 4 6 6
Performance limits(measuredwithHLP46,
oil ( = 190 SUS)
= 40 °C ± 5 °C [104 °F ± 9 °F])
8 Spoolsymbol“R”inspoolposition"b"(B→A)
8 Spoolsymbols“G”and“T”incentralposition(P→ T)
Operatingpressureinbar [psi] →
Flow in l/min [US gpm] →
Curve Spool sym-
bol
1 A,B
2 A/O
3 H
4 F,G,P,R,T
5 J,L,Q,U,W
6 C, D, E, M,
V, Y
7 C/O,C/OF,
D/O,D/OF
The given switching performance limits are valid for two di-
rectionsofflow(e.g.fromPtoAandsimultaneousreturn
flowfromBT).
Due to the flow forces acting within the valves, the permis-
sible switching performance limit may be significantly lower
withonlyonedirectionofflow(e.g.fromPtoAwhileportBis
blocked)!
In such cases, please consult us.
0,01/100
[0.0004/4.0]
Rzmax 4
30
39,5
70
TA
TB
B
A
Ø6,6
Ø11
34
200
52,6
40
100
40
Ø25
71
24,5
24,5
Ø8
b
a
0
b
a
a
b
3
1
2
4
4
8119
10
P
83,5
93,5
163
[2.80]
71
[2.80]
[0.98]
[1.57]
[Ø0.32]
[1.57]
[2.07]
[3.94]
[7.87]
[Ø0.43]
[1.18]
[3.29]
[1.34]
[1.56] [3.68]
[6.42]
12
[2.76]
[0.47]
19,1
[0.75]
[Ø0.26]
10/12 Bosch Rexroth AG Hydraulics WM., WN, WP, WHD RD 22331/11.07
Unit dimensions (dimensions in mm [inch])
Required surface quality of
the valve mounting face
Type WMM
1 2-positionvalves,spoolsymbolsB,Y,EB...
2 2-positionvalves,spoolsymbolsA,C,D,EA...
3 3-positionvalves
4 Coverorhandleverfor2-positionvalve,spoolsym-
bolsB,Y,EB…
8 Nameplate
9 IdenticalsealringsforportsA,B,P,TA,TB
10 AnadditionalT-port(TB)canoptionallybeusedwith
drilledblocks(notinconjunctionwithpressurereduc-
ing valves of type ZDR 10 D.. to data sheet RE 26585)
11 PortingpatterntoISO4401-05-04-0-05,
NFPAT3.5.1R2andANSIB93-7D05
Subplates to data sheet RE 45054
(separate order)
G66/01(G3/8)
G67/01(G1/2)
G534/01(G3/4)
G66/12(SAE-6)
G67/12(SAE-8)
G534/12(SAE-12)
For valve mounting screws, see page 11
Note!
On2-positionvalves(spoolsymbolBandY)thehandleveris
mountedonvalvesideB.
8
Ø16
3,6
46
64,8
3,6
68,4
4
1; 2
3
88
[0.32]
[Ø0.63]
[0.14] [0.14]
[1.81]
[2.55]
[2.69]
[3.46]
max. 30
4
88
[3.46]
0
a
b
b
b
a
a
1
2
3
3,6 3,6
[0.14] [0.14]
Ø54
36,5
108,5
34,4
80
83,5
3,6 3,6
[0.14]
[0.14]
[Ø2.13]
[1.35] [1.44]
[4.27]
[3.15]
[3.29]
108,5
34,4
54
28
7
3,6 3,6
[0.14]
[0.14]
[1.10] [1.35]
[2.13] [4.27]
90
0
a
X
b
ab
90
0
a
b
2
3
6
5
Hydraulics Bosch Rexroth AGRD 22331/11.07 WM., WN, WP, WHD
11/12
Unit dimensions (dimensions in mm [inch])
Type WMR
Type WMD
Type WMU
Type WMDA
1 2-positionvalves,spoolsymbolsB,Y,EB...
2 2-positionvalves,spoolsymbolsA,C,D,EA...
3 3-positionvalves
4 Coverorhandleverfor2-positionvalve,spoolsym-
bolsB,Y,EB…
5 Switchingangle90°totheleftfor3-positionvalves
6 Switchingangle90°totherightfor2-and3-position
valves
7 Spacerequiredtoremovekey
Subplates to data sheet RE 45054
(separate order)
G66/01(G3/8)
G67/01(G1/2)
G534/01(G3/4)
G66/12(SAE-6)
G67/12(SAE-8)
G534/12(SAE-12)
Valve mounting screws (separate order)
4 hexagon socket head cap screws
ISO 4762 - M6 x 40 - 10.9-flZn-240h-L
or 1/4-20 UNC x 1-1/2”
(Friction coefficient µ
total
=0.09to0.14);
tightening torque M
T
= 12.5 Nm [9.2 ft-lbs] ±10%,
•Materialno.metricR913000058
•Materialno.UNCR987800710
or
4 hexagon socket head cap screws
ISO 4762 - M6 x 40 - 10.9
(Friction coefficient µ
total
=0.12to0.17);
tightening torque M
T
= 15.5 Nm [11.4 ft-lbs] ±10%
Note!
On2-positionvalves(spoolsymbolsBandY)therollerplung-
erismountedonvalvesideB.
Detail “X“
"a"
"b"
4
4
TA
TB
B
A
P
811910
12
4
4
1
88
30
40
39,5
166
199
Ø11
"a"
"b"
G1/4; 12, Ø20
32
93,5
166
72,5
126,5
[Ø0.43]
[3.46]
[1.57]
[1.18]
[SAE4; 0.47, Ø0.79]
Ø6,6
[Ø0.26]
[1.56] [3.68]
[2.97] [4.98]
[6.54]
[6.54]
[7.83]
12
88
30
40
G1/4; 12, Ø20
[3.46]
[1.57]
[1.18]
[SAE4; 0.47, Ø0.79]
Ø11
[Ø0.43]
Ø6,6
[Ø0.26]
1
39,5
173,5
214
32
93,5
80
134
[1.56] [3.68]
[3.15] [5.28]
[6.83]
[8.43]
173,5
[6.83]
70
[2.76]
[0.47]
12
[0.75]
19,1
0,01/100
[0.0004/4.0]
Rzmax 4
BoschRexrothAG
Hydraulics
Zum Eisengießer 1
97816LohramMain,Germany
Phone +49(0)9352/18-0
Fax +49(0)9352/18-2358
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
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.
12/12 Bosch Rexroth AG Hydraulics WM., WN, WP, WHD RD 22331/11.07
Unit dimensions (dimensions in mm [inch])
1 2-positionvalves,spoolsymbols
B,Y,EB...
2 2-positionvalves,spoolsymbols
A,C,D,EA...
3 3-positionvalves
4 Cover for valves with one actua-
tor(2-positionvalve)
8 Nameplate
9 IdenticalsealringsforportsA,
B,P,TA,TB
10 AnadditionalT-port(TB)canop-
tionallybeusedwithdrillblocks
(noinconjunctionwithpressure
reducing valves of type ZDR 10
D.. to data sheet RE 26585)
11 Portingpatternto
ISO4401-05-04-0-05,
NFPAT3.5.1R2and
ANSIB93-7D05
12 Pilotport
For subplates and valve mounting
screws, see page 11
Required surface quality of the
valve mounting face
Types WP, WHD
Type WN