Hangzhou Zhejing Technology Co., Ltd
Hangzhou Zhejing Technology Co., Ltd. Dedicating in providing the best economy, quality performanace in the flow control industry
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Cryogenic Gate Valve, Inch 1/2"-36", LCB､LCC､LC3､CF8､CF8M､CF3､CF3, Class 150-1500
Zaval Cryogenic valves are specially designed for gas treatment processes and storage and transportation of liquefied gasses. It's mainly for ethylene, liquefied natural gas device, natural gas LPG LNG storage tank, air separation equipment, petroleum and chemical end gas separation equipment, liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide cryogenic storage tank and tanker and other device. The output low temperature liquid medium is not only flammable and explosive, it's gasified when heating-up, and the volume expands hundreds times after gasification. such as LNG, LPG, liquid nitrogen, etc. These valves are required to be operated to give assured leakage rates. Which are recommended to use below -40℃ are designed with a extended bonnet which separates the operator and stem seal from the cold temperature.
Design Features
Extended bonnet
Low emission packing
Full stellite overlay seat sealing surface
Discharge holes at the upstream end can prevent body and bonnet cavity pressure rising abnormally
Prevent stem instability structure
Technical specification
Design & manufacturing standard as per API 600/ BS 6364
Face to face standard as per ASME B16.10 / API 6D
Fanged ends standard as per ASME B16.5 / MSS-SP-44/ASME B 16.47/ASME B 16.25
Testing & inspection standard as per API598 / API 6D
Butt welding connecting end:ASME B16.25
Wall thickness: API 600/ASME B16.34
Pressure and temperature rating:ASME B16.34