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Cryogenic Ball Valve, Inch 1/2"~24", LCB、LCC、LC3、CF8、CF8M、CF3、CF3, Class 150-1500
Cryogenic ball valve is one of the important flow control equipment
in cryogenic pipeline systems, especially suitable for services
requiring
valves featuring high sealing performance, swift on-off and low
flow resistance. Zaval most advanced design principle and most
stringent manufacturing standard to design and manufacture
cryogenic ball valve which for reliable sealing performance, low
operation torque,and long life Service.State-of-art lip seal
technology combined with smart valve designs guarantee an excellent
sealing performance which are applied to minus 196°C working
condition.
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.
Design Features
Low emission packing prevents leakage around stem and achieves fire
safety.
Extension bonnet raises position of stuffing box away from cryogenic zone avoiding failure of packing due to low temperature.
Standard fire-safe design
Anti-static design
Standard drop plate
constructed to avoid condensated water flowing into insulating
layer
Technical specification
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