Cryogenic Ball Valve

Valve for medium with temperature of -40℃ to -196℃ is called cryogenic valve. Cryogenic ball valve is a kind of valve that is mainly for ethylene, liquefied natural gas and other chemical device. It’s mainly divided into cryogenic floating ball valve and cryogenic standing ball valve. Long-necked structure is not usually applied for temperature above -50℃, and applied for temperature below -50℃. It aims to protect the stuffing box. Locate stuffing box far away from low temperature. To guarantee sealing effect of the stuffing, cold insulation material also can be wound to prevent loss of cold energy. it’s a kind of valve that mainly for ethylene, liquefied natural gas and other chemical device.

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Design standard: API 6D, API 608, ASME B16.34
Length of structure: API 6D/ASME B16.10
Flange connecting end : ASME B16.5
Butt welding connecting end: ASME B16.25
Wall thickness: ASME B16.34
Inspection and test: API 6D/API 598
Pressure and temperature rating: ASME B16.34
Fireproof test: API 607/API 6FA
Product scope: NPS ½” -NPS 12”,CL150-CL2500
Main body material: LCB, LCC, LC3, CF8, CF8M, CF3, CF3M, LF2, F304, F316, F304L, F316L etc.
Drive device: Handle, Worm wheel, Electric, Pneumatic, Pneumatic- Hydraulic, Electro-hydraulic, etc.

 

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