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BOSCH REXROTH
4WMM10JA3X/F
R900526101
Directional Spool Valves

Spare a. single parts WM., WH., WP, WN

BOSCH REXROTH

MATERIAL:  R900526101

SUMMARY:  Spare a. single parts WM., WH., WP, WN

Due to extremely high demand, please call 888-651-5712 for availability

Valves of type WMM are manually actuated directional spool valves.

They control the start, stop and direction of a flow.

The directional valves basically consist of housing (1), one type of actuation (2.1) (hand lever), control spool (3) and one or two return springs (4).

When de-energized, the control spool (3) is held in the central position or in the initial position by the return springs (4) (except for version "O").

The control spool (3) is moved to the desired spool position by means of the types of actuation.

 

Type 4WMM 10 D5X/F/... (with detent)

Type 4WMM 10 E5X/...

technical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WN

Throttle insert

The use of a throttle insert is required when, due to prevailing operating conditions, flows occur during the switching processes which exceed the performance limit of the valve.

technical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WN

01

02

03

04

05

06

07

08

09

10

11

WMM

10

5X

/

/

*

01

3 main ports

3

4 main ports

4

Types of actuation

02

Manually: hand lever

WMM

03

Size 10

10

04

Symbols e. g. C, E, EA, EB, etc.; for the possible version, see Symbols and Types of actuation

05

Component series 50 … 59 (50 … 59: unchanged installation and connection dimensions)

5X

06

With spring return

no code

With detent

F

Corrosion protection

07

Standard corrosion protection

no code

Improved corrosion protection (720 h salt spray test according to EN ISO 9227)

J4

Throttle insert1)

08

Without throttle insert

no code

With throttle insert:

Connection

Throttle Ø in mm

0,8 mm

1,0 mm

1,2 mm

P

B08

B10

B12

A

H08

H10

H12

B

R08

R10

R12

A and B

N08

N10

N12

T 2)

X08

X10

X12

Further throttle insert diameters upon request.

Seal material

09

NBR seals

M

FKM seals

V

Seals for HFC hydraulic fluids

MH

Observe compatibility of seals with hydraulic fluid used.

Pilot oil port

10

Whitworth pipe thread G1/4

11

Further details in the plain text

*

1) When the admissible valve performance limit is exceeded, throttle inserts are to be installed (see Performance limits).
2) When throttle inserts are used in channel T, the pressure in the working ports and in case of connection to the tank chambers must not exceed 210 bar.

general

Size

10

Weight

Valve with one actuation cylinder

kg

3.6

Valve with two actuation cylinders

kg

3.6

Operating force

with detent "F"

N

30 … 40

With spring return

N

18 … 20

Installation position

any

Ambient temperature range

NBR seals

°C

-20 … +70

FKM seals

°C

-15 … +70

Storage temperature range

°C

-20 … +50

hydraulic

Size

10

Maximum operating pressure

Port P

bar

350

Port A

bar

350

Port B

bar

350

Port T 1)

bar

210

Maximum flow

l/min

160

Hydraulic fluid

see table

Hydraulic fluid temperature range 2)

NBR seals

°C

-20 … +80

FKM seals

°C

-15 … +80

Viscosity range

mm²/s

2.8 … 500

Maximum admissible degree of contamination of the hydraulic fluid 3)

Class 20/18/15 according to ISO 4406 (c)
1) With symbols A or B, port T must be used as leakage oil connection if the operating pressure exceeds the admissible tank pressure.
2) at the valve working ports of the valve
3) 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.

Hydraulic fluid

Classification

Suitable sealing materials

Standards

Mineral oils and related hydrocarbons

HL, HLP, HLPD, HVLP, HVLPD

NBR, FKM

DIN 51524

Bio-degradable

Insoluble in water

HETG

NBR, FKM

VDMA 24568

HEES

FKM

Soluble in water

HEPG

FKM

VDMA 24568

Containing water

Water-free

HFDU, HFDR

FKM

ISO 12922

Containing water

HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620)

 

NBR

 

ISO 12922

Important information on hydraulic fluids!

For further information and data on the use of other hydraulic fluids, please refer to data sheet 90220 or contact us! There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)!

Flame-resistant – containing water:

Maximum pressure differential per control edge 50 bar. Pressure pre-loading at the tank port >20% of the pressure differential; otherwise, increased cavitation Life cycle compared to operation with mineral oil HL, HLP 50 to 100 %

For applications outside these parameters, please consult us!

(measured with HLP46, ϑOil = 40 ±5 °C)

Δp-qV characteristic curves

technical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WNtechnical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WNtechnical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WN

Symbol

Direction of flow

P ‒ A

P ‒ B

A ‒ T

B ‒ T

A; B

6

6

C

1

2

5

7

D

2

2

5

7

E

17

16

19

21

F

2

3

22

23

G

4

4

24

24

H

14

14

20

21

J

3

3

9

11

J73

22

21

23

24

L

3

3

9

9

M

14

14

6

8

P

17

14

20

23

Q

16

17

4

8

R

18

21

18

24

T

18

4

10

24

U

3

3

6

11

V

17

17

18

20

W

upon request

Central position:

Symbol

Direction of flow

P ‒ A

P ‒ B

B ‒ T

A ‒ T

P ‒ T

H

12

12

13

13

15

Notice!

The specified performance limits are valid for use with two directions of flow (e. g. from P to A and simultaneous return flow from B to T).

Due to the flow forces acting within the valves, the admissible performance limit may be considerably lower with only one direction of flow (e. g. from P to A while port B is blocked)!

In such use cases, please consult us!

Performance limits (measured with HLP46, ϑOil = 40 ±5 °C)

technical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WNtechnical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WN

With spring return “–”

Characteristic curve

Symbol

1

C, D, E, J, J73, L, M, Q, U, V, W

2

H

3

T, G

With detent "F"

Characteristic curve

Symbol

4

C, D, E, J, J73, L, M, Q, U

5

T, G, H

technical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WN
technical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WNtechnical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WN
1) Example:Symbol E with spool position “a” → ordering code ..EA..Symbol E with spool position “b" → ordering code ..EB..

Size 16

Dimensions in mm

technical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WN

Dimensions in mm

technical illustration-4WMM10JA3X/F-Spare a. single parts WM., WH., WP, WN

1

Valves with 2 spool positions, symbol B and .B

2

Valves with 2 switching positions, symbol A, C, D .A

3

Valves with 3 switching positions

4

Cover and hand lever

5

Name plate

6

Identical seal rings for port A, B, P, TA, TB

7

Additional port TB can optionally be used

8

Porting pattern according to ISO 4401-05-04-0-05

Notices!

Deviating from ISO 4401, port T is called TA and port T1 is called TB in this data sheet. For valves with 2 switching positions and symbols B and .B, the hand lever is installed on valve side B. The dimensions are nominal dimensions which are subject to tolerances.