Directional spool valves รุ่น WMMH

รายละเอียด Directional spool valves, pilot operated, with mechanical-hydraulic actuation (hand lever) รุ่น WMMH

• Size 10, 16, 25 (4W.H22), 25 (4W.H25), 32
• Component series 4X, 7X, 6X
• Maximum operating pressure 280 bar
• Maximum flow 1100 l/min

Features

• Type of actuation: pneumatic-hydraulic
• For subplate mounting
• Porting pattern according to ISO 4401 and NFPA T3.5.1 R2-2002
• Subplates according to data sheets 45054 to 45060 (separate order)
• Spring centering, spring end position or hydraulic end position
• Optional auxiliary operating device
• Switching time adjustment, optional
• Preload valve in channel P of the main valve, optional
• Stroke setting at main spool, optional
• Stroke setting and/or end position control, optional
• Inductive position switch and proximity sensors (contactless)

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Type code

01	02	03	04	05	06	07		08	09	10	11	12	13		14	15	16	17	18	19
		WMMH							6											*

01	up to 280 bar	no code
02	3-way version	3
	4-way version	4
Types of actuation
03	mechanical-hydraulic: Roller plunger	WMMH
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
	Hydraulic 3)	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
Spool return in the pilot control valve with 2 spool positions only possible with spools B, C, D and hydraulic control spool return in the main valve:
08	With spring return	no code
Pilot control valve
09	with mechanical, manual actuation	6
10	Without manual override	no code
11	External pilot oil supply, external pilot oil return 1)	no code
	Pilot oil supply internal, pilot oil return external 1; 2)	E
	Pilot oil supply internal, pilot oil return internal 2)	ET
	External pilot oil supply, internal pilot oil return 1)	T
12	Without switching time adjustment	no code
	Switching time adjustment as supply control	S
	Switching time adjustment as discharge control	S2
Spool position monitoring
13	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
14	Stroke setting see stroke setting in type key table
Throttle insert
15	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) 4)
16	Without preload valve	no code
	With preload valve (pö = 4.5 bar)	P4,5
17	Without pressure reducing valve	no code
	With pressure reducing valve	D3 4)
Seal material
18	NBR seals	no code
	FKM seals (other seals upon request)	V
	Observe compatibility of seals with hydraulic fluid used.
19	Information in the plain text	*

1. 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!
   • observe the maximum pilot pressure!
2. Internal pilot oil supply (version “ET” and “E”):
   • minimum pilot pressure: please observe the Technical data!
   • to prevent inadmissibly high pressure peaks, a “B10” throttle insert must be provided in port P of the pilot control valve (see Pilot oil supply).
3. 2 spool positions (hydraulic end position): only piston C, D, Y, K ,Z
4. only in connection with throttle insert “B10”

pSt	Pilot pressure
ppilot min	Pilot pressure, minimum
ptank	Tank pressure
pö	Cracking pressure

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

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Model	Code
4WMMH 10 G4X/6ET/B10	R901236272
4WMMH 10 H4X/F6ETS2/B10D3	R901272853
4WMMH 10 J4X/F6	R978906879
4WMMH 16 D7X/6E/B10	R901428449
4WMMH 16 D7X/6ET/B10D3V	R901428997
4WMMH 16 E19-7X/6/V	R978910920
4WMMH 16 E7X/F6ETQMBG24/B10	R901364810
4WMMH 16 J7X/6ETS2/10B10	R901357870
4WMMH 22 D7X/6/V	R978901249
4WMMH 22 M7X/6ESQMABG24/B10V	R901442656

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