Bosch Rexroth Directional Spool Valves 4WEH10 4WEH16 4WEH22 4WEH25 4WEH32

Condition: in stock

Bosch Rexroth directional spool valves with multiple hydraulic actuation configurations WHE
Component series 4X, 6X, 7X
Maximum operating pressure 350 bar
Maximum flow 1100 l/min

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Download Data Sheet BOSCH REXROTH DIRECTIONAL SPOOL VALVES, PILOT-OPERATED, WITH HYDRAULIC OR ELECTRO-HYDRAULIC ACTUATION WEH AND WH

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Bosch Rexroth Directional Spool Valves with Electro-hydraulic Actuation WEH

Component series 4X, 6X, 7X
Size 10...32
Maximum operating pressure 350 bar
Maximum flow 1100 l/min
For subplate mounting
Explosion-proof also available

Features:

Type of actuation: electro-hydraulic
For subplate mounting
Porting pattern according to ISO 4401 and NFPA T3.5.1 R2
4/3-, 4/2- or 3/2-way version
Spring or pressure centering, spring end position or hydraulic end position
Wet-pin DC or AC solenoids, optional
Electrical connection as individual or central connection
Optional versions:
Manual override
Switching time adjustment
Preload valve in channel P of the main valve
Stroke setting and/or spool position monitoring

Configurations:

WEH - Pilot operated with electro/hydraulic actuation
WHH - Pilot operated with hydraulic/hydraulic actuation
WPH - Pilot operated with pneumatic/hydraulic actuation
WMMH - Pilot operated with hand lever/hydraulic actuation
WMRH - Pilot operated with roller plunger/hydraulic actuation
WMUH - Pilot operated with roller plunger (rotated by 90°)/hydraulic actuation
WMDH - Pilot operated with rotary knob/hydraulic actuation
WMDAH - Pilot operated with rotary knob (lockable)/ hydraulic actuation

General Function:

The valve type WEH is a directional spool valve with electro-hydraulic actuation. It controls the start, stop and direction of a flow.

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PART NUMBER		MATERIAL NUMBER	IN STOCK	PRICE	SHIP	ADD TO MY PARTS LIST

01	02	03	04	05	06	07		08	09	10	11	12	13	14	15		16	17	18	19	20	21
		WEH					/		6E					K4		/						*

01	up to 280 bar	no code
02	3-way version	3
02	4-way version	4
Types of actuation
03	electro-hydraulic	WEH
Size
04	NG10	10
	NG16	16
	NG25 (type 4W.H 22 .7X/…)	22
	NG25 (type 4W.H 25 .6X/…)	25
	NG32	32
Spool return in the main valve
05	by means of springs	no code
05	hydraulic 1)	H
06	Spool symbols see symbols
Component series
07	40 to 49 – NG10 (40 to 49: unchanged installation and connection dimensions)	4X
	60 to 69 – NG25 (4W.H 25.) and NG32 (60 to 69: unchanged installation and connection dimensions)	6X
	70 to 79 – NG16 (from series 72) and NG25 (4W.H 22.) (70 to 79: unchanged installation and connection dimensions)	7X
Control spool return in the pilot control valve with 2 spool positions and 2 solenoids (only possible with symbols C, D, K, Z and hydraulic control spool return in the main valve)
08	With spring return	no code
	Without spring return	O
	Without spring return with detent 2)	OF
Pilot control valve 2)
09	High-power valve	6E
10	Direct voltage 24 V 2)	G24
	Alternating voltage 230 V, 50/60 Hz 2)	W230
	For other voltages, frequencies and electric data, see data sheet of high-power valve
11	Without manual override	no code
	With manual override	N
	With concealed manual override	N9
12	Pilot oil supply internal, pilot oil return external 3; 4)	E
	Pilot oil supply internal, pilot oil return internal 4)	ET
	External pilot oil supply, internal pilot oil return 3)	T
	(For type WH... only "no code"; version “ET” and “T” with 3-spool position valve, pressure-centered, only possible if ppilot ≥ 2 x ptank + ppilot min!)
13	without switching time adjustment	no code
	Switching time adjustment as supply control	S
	Switching time adjustment as discharge control	S2
Electrical connection 2)
14	without mating connector, individual connection with connector according to DIN EN 175301-803	K4 6)
14	other electrical connections available on request
Spool position monitoring
15	Without position switch	no code
	Monitored spool position “a”	QMAG24
	Monitored spool position “b”	QMBG24
	monitored spool position "a" and "b"	QMABG24
	monitored rest position	QM0G24
Stroke setting
16	see stroke setting, type key table
Throttle insert 2)
17	Without throttle insert	no code
	Throttle Ø 0,8 mm	B08
	Throttle Ø 1,0 mm	B10
	Throttle Ø 1.2 mm	B12
	Throttle Ø 1.5 mm	B15
	Throttle Ø 2.0 mm	B20
	Throttle Ø 2.5 mm	B25
preload valve (not for NG10) 2; 5)
18	without preload valve	no code
18	with preload valve (pö = 4.5 bar)	P4,5
19	without pressure reducing valve	no code
19	with pressure reducing valve	D3 5)
Seal material
20	NBR seals	no code
	FKM seals (other seals upon request)	V
	Observe compatibility of seals with hydraulic fluid used.
21	Further details in the plain text	*

	1) – 2 switching positions (hydraulic end position): only spool C, D, K, Z, Y
	– 3 switching positions (hydraulically centered): only with NG16, NG25 (type 4W.H 25 …) and NG32
	2) only with electro-hydraulic actuation
	3)External pilot oil supply X or return Y:
	– with NG10, version SO30 has to be used if sandwich plates are installed. The identification SO30 has to be used at the end of the type designation (sandwich plate).
	– the maximum admissible operating parameters of the pilot control valve must be observed!
	– maximum pilot pressure: (contact HYQUIP for more information).
	4) Internal pilot oil supply (version “ET” and “E”):
	– minimum pilot pressure: (contact HYQUIP for more information).
	– to prevent inadmissibly high pressure peaks, a “B10” throttle insert must be provided in port P of the pilot control valve (contact HYQUIP for more information).
	5) only in connection with throttle insert “B10”
	6) mating connectors, separate order