Detailed Product Description
Air operated double seat regulating valve
Product outline |
| The ZXN new series air operated thin film double seat regulating valve uses the double guidance structure, uses for parts the multi-spring implementing agency, has the structure to be compact, the weight is light, the movement is keen, the valve capacity is big, the discharge characteristic is precise, merits and so on knocked-down and assemble convenience. Widely applies in medium and so on accuracy control gas, liquid, steam, the technological parameter adds like the pressure, the current capacity, the temperature, the fluid position maintains at the given value. Is suitable specially for the permission differential pressure is big, but permits the spillage in a big way is also not the very clean medium situation. This serial products has the standard type, the corrugated pipe seal, the clamp cover heat preservation and so on many kinds of varieties. The product nominal pressure rank has PN10, 16, 40, 64; Valve chest caliber scope DN20~200. Is suitable the fluid temperature by - 200~+560, in its scope many kinds of scales. The spillage standard has II level or IV level. The discharge characteristic is the linearity or and so on percentages. Many and varied variety specification may supply the choice |
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Product characteristic |
Goes against the bottom, the level double guidance double seat regulating valve, when the work the stability is good.
Two valve core and the valve seat, the use the tubing cross the valve chest, may re-equip Cheng Fanzhuang by the true thing, the gas valve valve changes is mad conveniently the valve.
The valve chest according to the hydrodynamics principle design's constant section low resistance to flow flow channel, the rated flow coefficient is big.
The balance force is not small, the permission use differential pressure is big.
The implementing agency uses the multi-spring structure, reduces 30% highly. Weight saving 30%.
The adjustable range is big, the inherent adjustable ratio is 50%.
The ZXNV corrugated pipe seal regulating valve has formed completely the seal to the motion valve lever, stops up outside the fluid to leak certainly.
The ZXNJ regulating valve has the heat preservation clamp cover, after using in the fluid cools, crystallizing, the coagulation easily to create the jamming the situation.
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Components material |
Valve chest, valve cover: HT200,50ZG core, valve seat: 1Cr18Ni9Ti, department too lai alloy built-up welding
Padding: Teflon, flexible graphite
Corrugated pipe: 1Cr18Ni9Ti
Packings: Rubber asbestos board, 10#, 1Cr18Ni9Ti, asbestos winding filling piece
Membrane lid: A3
Corrugated diaphragm: Ding Qingxiang glue press enhancement polyester fiber fabric
Spring: 60SiMn
Valve lever, throwout lever: 2Cr13, 1Cr18Ni9Ti
Bushing: 2Cr13
Soft seal valve core: Enhancement teflon
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