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Temperature control valve, pneumatic angle type temperature control valve

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所屬類別：Special alloy valve

Pneumatic angle type low temperature control valve has the advantages of simple structure, reliable operation, convenient repair, fire and explosion, the valve flow path is simple, low resistance, large flow capacity, light weight. Widely used in large scale air separation equipment oxygen making machine.

Technical parameters and performance indicators:

Nominal diameter mm	20										25	40		50	65	80	100
Seat diameter mm	3	4	5	6	7	8	10	12	15	20	26	32	40	50	66	80	100
The rated flow coefficient Kv	0.1	0.16	0.25	0.4	0.63	1.0	1.6	2.5	4	6.3	10	16	25	40	63	100	100
Nominal pressure MPa	1.6
Trip mm	10										16	25			40
Flow characteristics	A straight line						Straight lines; the percentage of
Medium temperature ℃	-200~ -80
Connection type	And pipe welding
With the implementing agencies	ZMA(B)-2											ZMA(B)-3			ZMA(B)-3
Body material	LF4

The implementation of the main technical parameters of mechanism:

Model	ZMA(B)2	ZMA(B)3	ZMA(B)4
The effective area of the film ㎝	280	400	630
Trip mm	10 ；16	25	40
Spring range KPa	20~100；40~200；

The performance index:

The basic error %	With a locator	±1.5	Always point bias %	Not with a locator	Open air	The starting point	±2.5
	Not with a locator	±6				Finish	±6
The return difference %	With a locator	1.5			Air to close	The starting point	±6
	Not with a locator	5				Finish	±2.5
The dead zone%	With a locator	0.6		Not with a locator	±1.5
	Not with a locator	4
Rated stroke deviation %	±2.5
Allowable leakage 1/h	1×10×ˉ4×Rated capacity

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