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Cryogenic valve
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Cryogenic Valve

Product Description:

From the aspect of working temperature, cryogenic valve is generally divided into cryogenic valve (-100℃ - -29℃) and ultra cryogenic valve (-100℃ and below). Its working temperature mainly depends on its medium temperature. Major varieties of the cryogenic valve include: gate valve, globe valve, check valve, ball valve and butterfly valve etc. It generally adopts a long-neck bonnet structure, which can guarantee the temperature of stuffing box bottom is above 0 ℃, thus preventing filler from freezing. During structure designing, structure deformation and medium pressure rising abnormally caused by temperature change shall be considered to guarantee the tightness and strength security, which is considered as the main principle.

Technical Specifications

Design standard:BS6364、GB/T 24925
Face to face standard: ASME B16.10、GB/T 12221
Flange ends: ASME B16.5、GB/T 9113
Pressure test:API 598、GB/T 13927
 

Product Specifications

Body material: low-temperature carbon steel, carbon steel
Nominal diameter: 1/2"~24"(DN15~600)
Pressure range: Class150~2500(PN10~420)
Working temperature:-196℃~+120℃
Operation:Wrench, worm gear, electric   , pneumatic    , gas over oil actuator  and electro-hydraulic actuator.  

Design Features
Application

Design of lengthening the valve neck
Prevention of low leakage filling
Discharge holes at the upstream end can prevent mid-cavity pressure rising abnormally 

 

Electricity, petroleum, chemical industry, papermaking, metallurgy, aerospaceand other industries

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