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Home > Products > Regulator valve > Pneumatic membrane cut-off valveZMQ

Description Material Performance Product Size Specifications

Pneumatic membrane cut-off valve development since the beginning of twentieth Century has been eighty years of history, has produced ten major categories of valve products, self operated valve and positioner, following development process valve and control valve: This valve shall generally be installed horizontally in the pipeline.

Valve body, sealing sleeve：HT200、ZG230-450 ZG1Cr18Ni9Ti ZGOCr18Ni12M02Ti
Valve core and valve seat：1Cr18Ni9Ti OCr18Ni12M02Ti 1Cr18Ni9TiOur silk and Chatterley surfacing EBR> Sleeve, valve plug：1Cr18Ni9Ti OCr18Ni12M02Ti 1Cr18Ni9TiWelding division is too vegetable and silk EBR>Ernst E materials: PTFE, flexible graphite
Corrugated diaphragm：Ding Chou rubber polyester fabric reinforced.EBR> Spring：60Si2Mn
Stem, push rod：2Cr13、1Cr18Ni9Ti
Valve, valve Qu E in gill piece)：Reinforced PTFE
corrugated pipe：1Cr18Ni9Ti

Nominal diameter		15	20	25	32	40	50	65	80	100	125	150	200
A		E196				E232		E308			E394		E498
L	PN16 、 40	130	150	160	180	200	230	290	310	350	400	480	600
	PN64	210	230	230	260	260	300	340	380	430	500	550	650
H	PN16 、 40	305	340	345	370	380	390	475	490	500	765	825	927
	PN64	320	350	354	372	382	397	473	475	517	805	882	815
	Bellows seal type	375	409	414	431	441	468	555	570	613	855	915	1017
H 1	PN16 、 40	50	53	58	70	75	83	93	100	110	125	143	170
	PN64	60	65	70	77.5	85	90	100	85	125	148	170	208
H 2	PN16	115	115	121	130	140	153	178	190	200	260	320	360
	PN40	125	125	130	140	150	160	185	200	220	280	320	380
	PN64	150	150	160	170	180	200	230	250	282	310	430	480
H 3	PN16 、 40	404	415	428	448	468	561	578	590	886	1008	1120
	PN64	365	430	498	528	528	530	535	540	600	890	1208	1305
	Bellows seal type	395	465	478	509	509	548	641	658	670	976	1098	1210
weight (kg)	TD>	10	10	12	15	18	23	35	45	60	75	90	120
	Bellows seal type	12	12	14	17	20	26	38	48	64	79	95	125

Nominal diameter DN(mm)		15	20	25	32			40				50		65		80		100		125		150		200
I scoop flow coefficient KV	Single seat, double LiE/TD>	5	7	11	20			30				48		75		120		190		300		480		760
	Sleeve				11			20		30		48		75		120		190		300		480		760
Nominal pressure PN(MPa)		1.0 1.6 4.0 6.4
Seoul scoop trip (mm)		8									12				20						25		40		50
effective area (c m 2 )	ZMQ type	100									200				400						600		1000
	ZSQ type	100									125				160						250
Yun Zhan Xuan Leakage	Cheng hard.E1/h	-A: 10 -4 X valve scoop capacity; tight type: single seat: 1.2X10 -7, 5X10 -6 X sleeve valve scoop capacity
	Gill's ChengE/TD>	VIlevel
Yun Hua years of age and noiseE (MPa)	ZMQ P N Positive effect	6.4	5.09	2.91		1.85	2.18		1.33		1.52		0.99		0.62		0.60		0.69	0.39
	ZMQ P N Counter action	6.4	6.4	3.88		2.47	2.91		1.77		2.03		1.32		0.83		0.80		0.92	0.52
	ZSQ P N	6.4	6.1	3.5		2.3	3.0		1.9		1.9		1.5		0.93		0.84		0.65	0.47
	Z M S QM	Nominal pressure
Signal pressure (kPa)	ZMQ	0 Inferior riceE250
	ZSQ	0 Inferior riceE400 ～ 600

Regulating valve is usually composed of electric actuator or pneumatic actuator and valve body two parts. Straight travel mainly through single seat type and through engine type two, which have large flow capacity, unbalanced and stable operating characteristics, so it is usually suitable for high flow, low pressure drop and leakage occasions. Angular travel: V type electric control valve, pneumatic diaphragm valve, eccentric butterfly valve, etc..

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