Steam pneumatic single seat regulating valve

NegotiableUpdate on 03/10

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Overview

The steam pneumatic single seat regulating valve consists of a pneumatic multi spring thin film actuator and a low flow resistance single seat valve. The new actuator has a low height, light weight, and simple equipment. The new valve body structure is compact, the flow channel is smooth, and it has a large flow coefficient. Pneumatic single seat regulating valve has stable operation, reliable action characteristics, small valve seat leakage, precise flow characteristics, and a wide adjustable range. It will undoubtedly achieve high-quality control effects in a wide range of applications with its advantages.

Product Details

1Steam pneumatic single seat regulating valveOverview

The steam pneumatic single seat regulating valve and stainless steel are composed of a pneumatic multi spring thin film actuator and a low flow resistance single seat valve. The new actuator has a low height, light weight, and simple equipment. The new valve body structure is compact, the flow channel is smooth, and it has a large flow coefficient. Pneumatic single seat regulating valve has stable operation, reliable action characteristics, small valve seat leakage, precise flow characteristics, and a wide adjustable range. It will undoubtedly achieve high-quality control effects in a wide range of applications with its advantages. There are various types of pneumatic single seat regulating valve products, including standard type, regulating cut-off type, corrugated pipe sealing type, jacket insulation type, etc. Suitable for liquid temperatures ranging from -200 ℃ to+560 ℃ in various grades.

IIMain component materials

Part Name	material	temperature range
Valve cover on valve body	HT200	-20～200℃
	ZG230-450	-40～450℃
	ZG1Cr18Ni9Ti	-250～550℃
	ZG0Cr18Ni12Mo2Ti	-250～550℃
Valve core and seat	1Cr18Ni9	-250～550℃
Valve core and seat	0Cr18Ni12Mo2Ti	-250～550℃
Packing material	Polytetrafluoroethylene	-40～200℃
Diaphragm film	Ding Qing rubber clip reinforced polyester fabric
compression spring	60Si2Mn
Membrane cover	A3

IIIMain performance indicators

Nominal diameter mm			20				25	40		50	65	80	100	150		200	250	300	350	400
Valve seat diameter mm			10	12	15	20	25	32	40	50	65	80	100	125	150	200	250	300	Can collaborate with our company Negotiate production
rated flow Coefficient Kv		straight line	1.8	2.8	4.4	6.9	11	17.6	27.5	44	69	110	176	275	440	690	1000	1600
		equal percentage	1.6	2.5	4	6.3	10	16	25	40	63	100	160	250	400	630	900	1440
Nominal pressure MPa			0.6 1.6 4.0 6.4
Travel distance mm			10				16	25			40			60			100
flow characteristics			Straight line, equal percentage, quick opening type
Medium temperature ℃			-40-230 ℃ (normal temperature type), heat sink 230-450 ℃ (medium temperature type), special order -100-600 ℃
Flange Standard			Compliant with JB78-59 and JB79-59 standards, can be ordered and produced according to JB/79.1-94, JB/79.2-94, ANSI, JIS, DIN and other standards
Valve body material	PN (MPa)	0.6,1.6	WCB(ZG230-450) CF3CF8 CF8M
		4.0,6.4	WCB(ZG230-450)、ZG1Cr18Ni9Ti、ZG0Cr18Ni12Mo2Ti CF8 CF8M
Valve type			Straight through single seat cast ball valve
Valve core material			1 CR 18 by 9 、 0 CR 18 by 12 mo 2 Ti CF 8 CF 8 m
Upper valve cover form			Ordinary type (constant temperature type), hot plate type (medium temperature type), low temperature type
Adjustable ratio R			50:1
air source connector			M16×1.5

4、 Main technical parameters of stainless steel

model	ZHA-22 ZHB-22	ZHA-23 ZHB-23	ZHB-34 ZHB-34	ZHA-45 ZHB-45	ZHA-56 ZHB-56
Effective area cm2	350	350	560	900	1600
Travel distance mm	16	25	40	60	100
Spring range KPa	20-100 (standard): 40-200; 80～240; 20～60; 60~100

5、 Performance indicators of stainless steel

project		indicator value	project				indicator value
Basic error%	without locator	±5.0	begin end point partial poor %	Qi Guan	without locator	Starting point	±5.0
	locator	±1.0				destination	±2.5
Return difference%	without locator	≤3.0			locator	Starting point	±1.0
						destination	±1.0
	locator	≤1.0		air open	without locator	Starting point	±2.5
						destination	±5.0
Dead zone%	without locator	≤3.0			locator	Starting point	±1.0
						destination	±1.0
	locator	≤0.4	Allowable leakage rate L/h				1 × 10-4 × rated capacity of valve
Rated travel deviation%		±2.5

6、 Dimensions of Pneumatic Single Seat Regulating Valve

DN	L			H		H1				Mass (kg)		φA
DN	PN16	PN40	PN64	ordinary	high temperature	PN6	PN16	PN40	PN64	PN6 PN16	PN40 PN64	φA
20	181	194	206	398	548	45	52		65	19	23	285
25	185	197	210	410	560	50	57		70	20	24
40	222	235	251	455	620	65	75		85	26	35
50	254	267	286	457	627	70	82		90	30	40
65	276	292	311	610	790	80	92		100	47	66	360
80	298	317	337	622	807	95	100		107	55	78
100	352	368	394	640	850	105	110	117	125	65	99

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