4/3 AND 4/2 DIRECTIONAL VALVE, WITH HAND LEVER ACTUATION

H-4WMM

Material #: R900929523

Model : H-4WMM16T7X/

Direct operated directional spool valve with hand lever actuation Porting pattern according to DIN 24340 form A and ISO 4401 with spring return or detent, optional Actuation mechanism protected against contamination and humidity ingress Head end with actuation mechanism exchangeable without disassembly of the valve Inductive position switch and proximity sensors (contactless)

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Direct operated directional spool valve with hand lever actuation Porting pattern according to DIN 24340 form A and ISO 4401 with spring return or detent, optional Actuation mechanism protected against contamination and humidity ingress Head end with actuation mechanism exchangeable without disassembly of the valve Inductive position switch and proximity sensors (contactless)

Valves type WMM are manually actuated directional spool valves. They control the start, stop and direction of a flow and basically consist of housing (1), hand lever (2), 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). The control spool (3) is actuated directly by the hand lever (2). By means of a socket and the bolt (5), it acts directly on the control spool (3) which is thereby moved from its rest position to the desired end position.

When the hand lever (2) has been reset to spool position zero, the return spring (4) pushes the control spool (3) back to its rest position again.

Type H-4WMM../F.. (with detent)

This version is a directional valve with 2 or 3 spool positions and a detent (6) which locks all spool positions.

Type H-4WMM 16 E 7X/…

Type H-4WMM 16 E 7X/F… (with detent)

01

02

03

04

05

06

07

08

09

10

H

4

WMM

/

*

01

Maximum operating pressure 350 bar

H

02

4 main ports

4

Actuation

03

Hand lever

WMM

04

Size 16

16

Size 25

22

Size 32

32

05

Spool symbol, e. g. C, E etc., see Symbols

06

NG16 and 25 – Component series 70 to 79 (70 to 79: unchanged installation and connection dimensions)

7X

NG32 – Component series 30 to 39 (30 to 39: unchanged installation and connection dimensions)

5X

07

With spring return

no code

With detent

F

Spool position monitoring (NG16 and 25 only)

08

Without position switch

no code

Monitored spool position "a"

QMAG24

Monitored spool position "b"

QMBG24

Monitored rest position

QM0G24

Seal material

09

NBR seals

no code

FKM seals (other seals upon request)

Observe compatibility of seals with hydraulic fluid used.

V

10

Further details in the plain text

*

Preferred types and standard units are contained in the EPS (standard price list).

general

Size

16 25 32

Weight (approx.)

kg

8 12.2 49

Operating force

with detent (approx.)

N

75 105 100

with spring return (max.)

N

75 105 150

Installation position

any

Ambient temperature range

NBR seals

°C

-30 … +80

FKM seals

°C

-20 … +80

Actuation angle from the central position 1)

2 x

°

26 24.5 25
1) see Unit dimensions

hydraulic

Size

16 25 32

Maximum operating pressure

Port A

bar

350

Port B

bar

350

Port P

bar

350

Port T

bar

250 1) 250 2)

Maximum flow

l/min

300 450 1100

Hydraulic fluid

see table

Hydraulic fluid temperature range

NBR seals

°C

-30 … +80

FKM seals

°C

-20 … +80

Viscosity range

mm²/s

2.8 … 380

Maximum admissible degree of contamination of the hydraulic fluid 3)

Class 20/18/15 according to ISO 4406 (c)

Flow cross-section

Symbol Q (A/B → T)

mm²

32 78 116

Symbol V (A/B → T)

mm²

32 73 136

Symbol V (P → A/B)

mm²

32 84 120

Symbol W (A/B → T)

mm²

6 10 20
1) With a tank pressure >  160bar, the leakage oil has to be discharged via port L!
2) With a tank pressure > 160 bar, the leakage oil has to be discharged via port Y!
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 oil

HL, HLP

FKM, NBR

DIN 51524

Bio-degradable

Insoluble in water

HEES (synthetic esters)

FKM

VDMA 24568

HETG (rape seed oil)

FKM, NBR

Soluble in water

HEPG (polyglycols)

FKM

VDMA 24568

Other hydraulic fluids on request

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

PNP transistor outputs, load between switching outputs and GND

Pinout

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

Size 16

Symbol

Direction of flow

P – A

P – B

A – T

B – T

P – T

E, D, Y

1

1

1

3

F

2

2

3

3

G, T

5

1

3

7

6

H, C, Q

2

2

3

3

V, Z

2

2

3

3

J, K, L

1

1

3

3

M, W

2

2

4

3

R

2

2

4

U

1

1

4

7

S

4

4

4

8

Performance limits

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

 

Attention!

The switching function of the valves is independent from the filtration due to the adhesive effect. To achieve the specified admissible flows, a full flow filtration with 25 μm is recommended. The flow forces acting within the valves also influence the flow performance.

With 4-way directional valves, the specified flows are therefore valid for normal operation with 2 directions of flow (e. g. from P to A and simultaneous return flow from B to T). If there is only one direction of flow, the admissible flow may be significantly lower (e. g. if a 4-way directional valve is used as a 3-way directional valve due to blocked port A or B).

NG16

2-spool position valve – qV max

Symbol

Operating pressure pmax in bar

70 bar

140 bar

210 bar

280 bar

350 bar

With spring return

C

300 l/min

300 l/min

300 l/min

260  l/min

220 l/min

D

300 l/min

300 l/min

210 l/min

190 l/min

160 l/min

K

300 l/min

300 l/min

200 l/min

150 l/min

130 l/min

Z

300 l/min

240 l/min

190 l/min

170 l/min

150 l/min

With detent

C, D, K, Z

300 l/min

300 l/min

300 l/min

300 l/min

300 l/min

NG16

3-spool position valve – qV max

Symbol

Operating pressure pmax in bar

70 bar

140 bar

210 bar

280 bar

350 bar

With spring return

E, H, J, L, M, Q, R, U, W

300 l/min

300 l/min

300 l/min

300 l/min

300 l/min

F, P

300 l/min

300 l/min

210 l/min

190 l/min

170 l/min

G, S, T

300 l/min

300 l/min

220 l/min

210 l/min

180 l/min

V

300 l/min

260 l/min

200 l/min

180 l/min

170 l/min

With detent

E, H, J, L, M, Q, R, U, W

300 l/min

300 l/min

300 l/min

300 l/min

300 l/min

F, P

300 l/min

300 l/min

280 l/min

230 l/min

230 l/min

G, S, T

300 l/min

300 l/min

230 l/min

230 l/min

230 l/min

V

300 l/min

300 l/min

250 l/min

230 l/min

230 l/min

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

Δp-qV characteristic curves

NG25

Symbol

Direction of flow

P – A

P – B

A – T

B – T

P – T

B – A

E

2

2

1

4

F

1

2

1

2

4

G

2

2

2

4

6

H

2

2

1

3

2

J

2

2

1

3

L

2

2

1

2

M

2

2

1

4

P

2

2

1

4

6

Q

2

2

1

4

R

1

2

1

5

T

2

2

2

4

5

U

2

2

1

4

V

2

2

1

4

W

2

2

1

3

4

Spool symbol L central position A – T

6

Spool symbol U central position B – T

Performance limits

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

 

Attention!

The switching function of the valves is independent from the filtration due to the adhesive effect. To achieve the specified admissible flows, a full flow filtration with 25 μm is recommended. The flow forces acting within the valves also influence the flow performance.

With 4-way directional valves, the specified flows are therefore valid for normal operation with 2 directions of flow (e. g. from P to A and simultaneous return flow from B to T). If there is only one direction of flow, the admissible flow may be significantly lower (e. g. if a 4-way directional valve is used as a 3-way directional valve due to blocked port A or B).

NG25

2-spool position valve – qV max

Symbol

Operating pressure pmax in bar

70 bar

140 bar

210 bar

280 bar

350 bar

With spring return

C

450 l/min

300 l/min

250 l/min

200 l/min

180 l/min

D

350 l/min

300 l/min

275 l/min

250 l/min

200 l/min

K

200 l/min

150 l/min

140 l/min

130 l/min

120 l/min

Z

300 l/min

270 l/min

240 l/min

220 l/min

200 l/min

With detent

C, D, K, Z

450 l/min

450 l/min

450 l/min

450 l/min

450 l/min

NG25

3-spool position valve – qV max

Symbol

Operating pressure pmax in bar

70 bar

140 bar

210 bar

280 bar

350 bar

With spring return

E, J, L, M, Q, R, U, W

450 l/min

450 l/min

450 l/min

450 l/min

450 l/min

F

450 l/min

250 l/min

200 l/min

135 l/min

110 l/min

G, T

450 l/min

330 l/min

290 l/min

230 l/min

180 l/min

H

450 l/min

450 l/min

400 l/min

400 l/min

350 l/min

P

450 l/min

310 l/min

240 l/min

215 l/min

150 l/min

V

450 l/min

310 l/min

280 l/min

270 l/min

200 l/min

With detent

E, F, G, H, J, L, M, P, Q, R, T, U, W

450 l/min

450 l/min

450 l/min

450 l/min

450 l/min

V

450 l/min

450 l/min

400 l/min

350 l/min

300 l/min

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

Δp-qV characteristic curves

Size 32

Symbol

Direction of flow

P – A

P – B

A – T

B – T

P – T

B – A

E

1

1

2

3

G

6

5

6

7

7

R

1

1

2

4

S

9

8

T

6

5

6

7

7

W

1

1

2

3

4

10

all other spool symbols

Performance limits

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

 

Attention!

The switching function of the valves is independent from the filtration due to the adhesive effect. To achieve the specified admissible flows, a full flow filtration with 25 μm is recommended. The flow forces acting within the valves also influence the flow performance.

With 4-way directional valves, the specified flows are therefore valid for normal operation with 2 directions of flow (e. g. from P to A and simultaneous return flow from B to T). If there is only one direction of flow, the admissible flow may be significantly lower (e. g. if a 4-way directional valve is used as a 3-way directional valve due to blocked port A or B).

Size 32

2-spool position valve – qV max

Symbol

Operating pressure pmax in bar

70 bar

140 bar

210 bar

280 bar

350 bar

With spring return

C

1100 l/min

1040 l/min

860 l/min

800 l/min

700 l/min

D

1100 l/min

1040 l/min

540 l/min

480 l/min

420 l/min

K

1100 l/min

1040 l/min

860 l/min

500 l/min

450 l/min

Z

1100 l/min

1040 l/min

860 l/min

700 l/min

650 l/min

With detent

C, D, K, Z

1100 l/min

1040 l/min

860 l/min

750 l/min

680 l/min

Size 32

3-spool position valve – qV max

Symbol

Operating pressure pmax in bar

70 bar

140 bar

210 bar

280 bar

350 bar

With spring return

E, J, L, M, Q, R, U, W

1100 l/min

1040 l/min

860 l/min

750 l/min

680 l/min

F, G, S, T, H, P

900 l/min

900 l/min

800 l/min

650 l/min

450 l/min

V

1100 l/min

1000 l/min

680 l/min

500 l/min

450 l/min

With detent

E, F, G, H, J, L, M, P, Q, R, S, T, U, V, W

1100 l/min

1040 l/min

860 l/min

750 l/min

680 l/min

1) only NG16 and 32

NG16

Dimensions in mm

1

Spool position “a”

2

Spool position “b”

3

Spool position "0"

4

Name plate

5

2 locking pins Ø3

6

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

7

Identical seal rings for ports L, X and Y

8.1

Dimension 3 spool position valve

8.2

Dimension 2 spool position valve with spring return

9

machined valve contact surface

10

Porting pattern according to DIN 24340 form A16 and ISO 4401-07-07-0-05

Subplates according to data sheet RE 45056

(separate order)

G 172/01 (G3/4)

G 174/01 (G1)

G 174/08 (flange)

Valve mounting screws (separate order)

4 hexagon socket head cap screws

ISO 4762 - M10 x 60 - 10.9-flZn-240h-L

Friction coefficient µtotal = 0.09 to 0.14,

tightening torque MA = 75 Nm,

material no. R913000116

2 hexagon socket head cap screws ISO 4762 - M6 x 60 - 10.9,

friction coefficient µtotal = 0.09 to 0.14,

tightening torque MA = 12.5 Nm

material no. R913000115

1

Spool position “a”

2

Spool position “b”

3

Spool position "0"

4

Name plate

5

2 locking pins Ø6

6

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

7

Identical seal rings for ports X and Y

9

machined valve contact surface

10

Porting pattern according to DIN 24340 form A25 and ISO 4401-08-08-0-05

Subplates according to data sheet RE 45058, 45059

(separate order)

G 150/01 (G3/4)

G 151/01 (G1)

G 154/01 (G1 1/4)

G 156/01 (G1 1/2)

Valve mounting screws (separate order)

6 hexagon socket head cap screws

ISO 4762 - M12 x 60 - 10.9-flZn-240h-L

Friction coefficient µtotal = 0.09 to 0.14,

tightening torque MA = 130 Nm,

material no. R913000121

Size 32

Dimensions in mm

1

Spool position “a”

2

Spool position “b”

3

Spool position "0"

4

Name plate

5

2 locking pins Ø6

6

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

7

Identical seal rings for ports X and Y

8.1

Dimension for 2 and 3 spool position valve with detent and 3 spool position valve with spring return

8.2

Dimension 2 spool position valve with spring return

9

machined valve contact surface

10

Porting pattern according to DIN 24340 form A32 and ISO 4401-10-09-0-05

11

Diversion plate

Subplates according to data sheet RE 45060

(separate order)

G 157/01 (G1 1/2)

G 157/02 (M48 x 2)

G 158/10 (flange)

Valve mounting screws (separate order)

6 hexagon socket head cap screws

ISO 4762 - M20 x 80 - 10.9-flZn-240h-L

Friction coefficient µtotal = 0.09 to 0.14,

tightening torque MA = 160 Nm,

material no. R901035246

Spool position monitoring

Inductive position switch type QM

Dimensions in mm

1) For dimensions, see valve dimensions

Inductive position switch type QM, 4WMM

Dimensions in mm

Notice:

The dimensions are nominal dimensions which are subject to tolerances.

Size

16 25

H

mm

34 37