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4/2和4/3方向截止阀Z4WEH 22

发布日期：2019-03-22　阅读：次

特征

Technical data

general

Size			25
Weight	Valve with one solenoid	kg	20.8
	Valve with two solenoids	kg	21.1
	Switching time adjustment	kg	0.8
	3-way pressure reducing valve	kg	0.4
	Plate for version "T"	kg	0.5
Installation position			any
Ambient temperature ranges (NBR seals)		°C	-30 … +50
Ambient temperature ranges (FKM seals)		°C	-20 … +50

Size				25
Maximum operating pressure	Port P	External pilot oil supply	bar	315
		Internal pilot oil supply (without pressure reducing valve)	bar	210
		Internal pilot oil supply (with pressure reducing valve)	bar	315
	Anschluss A		bar	315
	Port B		bar	315
	Port X		bar	315
	Port Y		bar	315
	Port T	with DC solenoid	bar	210
	Port T	with AC solenoid	bar	160
Maximum flow			l/min	650
Minimum pilot pressure			bar	12
Maximum pilot pressure			bar	210
Pilot volume for switching process			cm³	7.7
Hydraulic fluid ¹⁾				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 … 500
Maximum admissible degree of contamination of the hydraulic fluid ²⁾				Class 20/18/15 according to ISO 4406 (c)

¹⁾	The ignition temperature of the process and operating medium used must be over the maximum solenoid surface temperature.
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 oil		HL, HLP	NBR, FKM	DIN 51524
Fast bio-degradable hydraulic fluids				VDMA 24568
Environmentally compatible	Insoluble in water	HETG	NBR, FKM
Environmentally compatible	Insoluble in water	HEES	FKM
	Soluble in water	HEPG	NBR, FKM
Other hydraulic fluids on request

Notices!

Actuation of the manual override is only possible up to a tank pressure of approx. 50 bar. Avoid damage to the bore of the manual override! (Special tool for the operation, separate order, material no. R900024943). When the manual override is blocked, the actuation of the solenoid must be prevented!

Pilot pressure			70 bar		140 bar		210 bar
Voltage type			Direct voltage	AC voltage	Direct voltage	AC voltage	Direct voltage	AC voltage
3-spool position valve (spring-centered)	Version "ET" (with throttle insert "B10")	ms	115	80	85	60	75	50
	Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]")	ms	80	80	75	65	65	50
	Version "T"	ms	50	30	50	20	50	20
2-spool position valve (spring end position)	Version "ET" (with throttle insert "B10")	ms	140	100	100	70	75	50
	Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]")	ms	125	110	95	65	75	50
	Version "T"	ms	65	45	60	40	85	55

Pilot pressure			70 bar		140 bar		210 bar
Voltage type			Direct voltage	AC voltage	Direct voltage	AC voltage	Direct voltage	AC voltage
3-spool position valve (spring-centered)	Version "ET" (with throttle insert "B10")	ms	50	60	50	60	50	60
	Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]")	ms	50	85	50	85	50	85
	Version "T"	ms	50	55	50	55	50	55
2-spool position valve (spring end position)	Version "ET" (with throttle insert "B10")	ms	160	175	140	160	130	150
	Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]")	ms	150	175	120	150	110	140
	Version "T"	ms	55	110	45	100	40	95

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

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!

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