R978907846 - BuyRexroth

Manufacturer: Bosch Rexroth

Material #: R978907846

Model : H-4WMM22W6X/

$3,059.00 USD

More are expected on August 20, 2026

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Qty	Price	Savings
5-24	$2,982.52 USD	$76.48 USD
25+	$2,906.05 USD	$152.95 USD

Status: This product is temporarily out of stock.

Qty: Delivered as early as August 20, 2026 when ordered in

This product is eligible for factory repair.

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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
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
06	NG32 – Component series 30 to 39 (30 to 39: unchanged installation and connection dimensions)	5X
07	With spring return	no code
07	With detent	F
Spool position monitoring (NG16 and 25 only)
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
Seal material
09	NBR seals	no code
09	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
Operating force	with spring return (max.)	N	75	105	150
Installation position			any
Ambient temperature range	NBR seals	°C	-30 … +80
Ambient temperature range	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
Hydraulic fluid temperature range	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
	Insoluble in water	HETG (rape seed oil)	FKM, NBR	VDMA 24568
	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
Symbol	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
Symbol	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
Symbol	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
Symbol	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!

NG25

2-spool position valve – qV max
Symbol	Operating pressure pmax in bar
Symbol	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
Symbol	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
Symbol	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!

Size 32

2-spool position valve – qV max
Symbol	Operating pressure pmax in bar
Symbol	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
Symbol	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

Manufacturer: Bosch Rexroth

Material #: R978907846

Model : H-4WMM22W6X/

More are expected on August 20, 2026

This product is eligible for factory repair.

Type H-4WMM 16 E 7X/…

general

hydraulic

Inductive position switch type QM: electrical connection

electrical

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

Δp-qV characteristic curves

Performance limits

NG16

NG16

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

Δp-qV characteristic curves

Performance limits

NG25

NG25

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

Δp-qV characteristic curves

Performance limits

Size 32

Size 32

NG16

Size 32

Spool position monitoring

Inductive position switch type QM

Inductive position switch type QM, 4WMM

Notice:

Related Products

Information

Account

Manufacturer: Bosch Rexroth

Material #: R978907846

Model : H-4WMM22W6X/

More are expected on August 20, 2026

View Bulk Pricing Discounts

This product is eligible for factory repair.

Type H-4WMM 16 E 7X/…

general

hydraulic

Inductive position switch type QM: electrical connection

electrical

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

Δp-qV characteristic curves

Performance limits

NG16

NG16

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

Δp-qV characteristic curves

Performance limits

NG25

NG25

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

Δp-qV characteristic curves

Performance limits

Size 32

Size 32

NG16

Size 32

Spool position monitoring

Inductive position switch type QM

Inductive position switch type QM, 4WMM

Notice:

Related Products

Information

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