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BOSCH REXROTH
4WMM6J5X//V
R900402164
Directional Spool Valves

Directional spool valves: WMM 6.-5x/

$891.00

BOSCH REXROTH

MATERIAL:  R900402164

SUMMARY:  Directional spool valves: WMM 6.-5x/

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Type WM.. valves are mechanical, manually actuated directional spool valves. They control the start, stop and direction of a flow. Directional valves basically consist of housing (1), one type of actuation (2) (hand lever), control spool (3) and one or two return springs (4). In de-energized state, the return springs (4) maintain the control spool (3) in central or starting position - if the rotary knob is actuated with a detent. The control spool (3) is moved to the desired spool position by means of the type of actuation (2).

Detent

Directional valves with rotary knob are generally designed with detent. Directional valves with hand lever are optionally available as 2 or 3 position valves with detent. Directional valves with roller plunger are generally designed without detent. If types of actuation with detent are used, each spool position can be locked, depending on the valve type.

Throttle insert

The use of a throttle insert is required when due to prevailing operating conditions, flows can occur during the switching processes, which exceed the performance limit of the valve. It is inserted in channel P of the directional valve.

Type 4WMM 6 D5X/F

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/

Type 4WM. 6 ..5X/..B..

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/

01

02

03

04

05

06

07

08

09

10

11

12

13

WMM

6

5X

/

/

no code

*

01

3 main ports

3

4 main ports

4

Type of actuation

02

Hand lever

WMM

03

Size 6

6

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

ohne Bez.

Without spring return with detent

F

Corrosion protection

07

Standard corrosion protection

ohne Bez.

Improved corrosion protection

1)

J

Spool position monitoring

2)

08

Without position switch

ohne Bez.

Inductive position switch type QM

Monitored spool position "a"

QMAG24

Monitored spool position "b"

QMBG24

Monitored rest position

QM0G24

09

Without throttle insert

ohne Bez.

Throttle Ø 0.8 mm

B083)

Throttle Ø 1.0 mm

B10 3)

Throttle Ø 1.2 mm

B123)

Clamping length

10

42 mm (standard)

no code

Seal material

11

NBR seals

ohne Bez.

FKM seals

V

Observe compatibility of seals with hydraulic fluid used. (Other seals upon request)

12

Without locating hole

ohne Bez.

With locating hole

/604)

With locating hole and locking pin ISO 8752-3x8-St

/62

13

Further details in the plain text

*

1) The external parts made of metal are galvanized, treated with an anti-corrosion agent or made of stainless steel. This design is also suitable for on-wall applications.
2) Only for valves with 2 spool positions and versions
“WMM”; not for version “J”
3) Use if flow > performance limit of the valve, effective in channel P.
4) Locking pin ISO 8752-3x8-St, material no. R900005694, separate order

general

Size

6

Weight (approx.)

kg

1.4

Installation position

any

Ambient temperature range

NBR seals

°C

-20 … +80

FKM seals

°C

-20 … +80

Operating force

without tank pressure, with/without detent

N

20

at a tank pressure of 150 bar 1)

N

30
1) at 150 bar

hydraulic

Size

6

Maximum operating pressure

Port P

bar

315

Port A

bar

315

Port B

bar

315

Port T 1)

bar

160

Maximum flow

l/min

60

Flow cross-section (spool position 0)

Symbol Q

approx. 6 % of nominal cross-section

Symbol W

approx. 3 % of nominal cross-section

Hydraulic fluid

see table

Hydraulic fluid temperature range

NBR seals

°C

-30 … +80

FKM seals

°C

-20 … +80

Viscosity range

mm²/s

2.8 … 500

Maximum admissible degree of contamination of the hydraulic fluid 2)

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) 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

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, HNBR

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.)! The flash point of the hydraulic fluid used must be 40 K higher than the maximum solenoid surface temperature.

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%

Inductive position switch type QM: electrical connection

The electric connection is realized via a 4-pole mating connector (separate order) with connection thread M12 x 1.

electrical

Connection voltage (DC voltage)

V

24

Voltage tolerance (connection voltage)

+30 %/-15 %

Admissible residual ripple

%

≤ 10

Max. load capacity

mA

400

Switching outputs

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
PNP transistor outputs, load between switching outputs and GND

Pinout

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/

1

V

24

2, 4

Switching output

mA

400

3

Earthing (GND)

V

0

For applications outside these parameters, please consult us!

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

Δp-qV characteristic curves

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/

7

Symbol “R” in spool position "b" (A → B)

8

Symbols “G” and “T” in central position (P → T)

Symbols

Direction of flow

P-A

P-B

A-T

B-T

A

3

3

B

3

3

C

1

1

3

1

D

5

5

3

3

E

3

3

1

1

F

1

3

1

1

G

6

6

9

9

H

2

4

2

2

J

1

1

2

1

L

3

3

4

9

M

2

4

3

3

P

3

1

1

1

Q

1

1

2

1

R

5

5

4

T

10

10

9

9

U

3

3

9

4

V

1

2

1

1

W

1

1

2

2

Y

5

5

3

3

Performance limits

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

 

Notice!

The specified switching power 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 switching power 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!

Version "WMM" - spring return

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/

Characteristic curve

Symbol

1

E,E1–,M,J,L,Q,U,W,

C,D,Y,G,H,R

2

A,B

3

V

 

4

F,P

5

T

Version "WMM" - with detent

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/

Characteristic curve

Symbol

1

E1–,M,H,C,D,Y

2

E,J,Q,L,U,W

3

A,B

4

G,T

5

F

6

V

7

P

8

R

9

T

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
1) Example: Symbol E with spool position "a" → ordering code ..EA.. Symbol E with spool position “b" → ordering code ..EB..
3) Symbol E1-: P → A/B pre-opening Caution in conjunction with differential cylinders due to pressure intensification!

Notices!

Representation according to DIN ISO 1219-1.

Hydraulic interim positions are shown by dashes.

Type of actuation

Hand lever “WMM”

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/

4/2 directional seat valve – with detent

Dimensions in mm

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/

Dimensions in mm

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/

1

Name plate

2

Porting pattern according toISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St, material no. R900005694, separate order)

3

Identical seal rings for ports A, B, P, and T

5

Valve with 2 spool positions

6

Valve with 3 spool positions

7

Spool position “a”

8

Spool position “b”

9

Spool position “0”, “a” and “b” (a and b for valves with 2 spool positions)

Subplates according to data sheet 45052 (separate order)

(without locating hole)

G 341/01 (G1/4)

G 342/01 (G3/8)

G 502/01 (G1/2)

(with locating hole)

G 341/60 (G1/4)

G 342/60 (G3/8)

G 502/60 (G1/2)

G 341/12 (SAE-6)1)

G 342/12 (SAE-8)1)

G 502/12 (SAE-10)1)

 

1) On request

 

 

Valve mounting screws (separate order)

Clamping length 42 mm:

4 hexagon socket head cap screws, metric

ISO 4762 - M5 x 50 - 10.9-flZn-240h-L

(friction coefficient μtotal = 0.09 to 0.14);

tightening torque MA = 7 Nm ± 10 %,

Material no. R913000064

or

4 hexagon socket head cap screws

ISO 4762 - M5 x 50 - 10.9 (self procurement)

(friction coefficient μtotal = 0.12 to 0.17);

tightening torque MA = 8.1 Nm ± 10 %

4 hexagon socket head cap screws UNC

10-24 UNC x 2″ ASTM-A574

(friction coefficient μtotal = 0.19 to 0.24);

tightening torque MA = 11 Nm ± 15 %,

(friction coefficient μtotal = 0.12 to 0.17);

tightening torque MA = 8 Nm ± 10 %,

material no. R978800693

Spool position monitoring

Inductive position switch type QM, 4WMM

Dimensions in mm

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/
1) For dimensions, see valve dimensions

3/2 directional seat valve – with detent

Dimensions in mm

technical illustration-4WMM6J5X//V-Directional spool valves: WMM 6.-5x/

1

Cover not available for type WMRZ

Notice:

The dimensions are nominal dimensions which are subject to tolerances.