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The cryogenic valve is a kind of valve used under the conditions with temperature below -196℃. The products include cryogenic ball valves, gate valves, globe valves and cryogenic check valves. The cryogenic treatment and prolonged stem design are adopted to ensure the performance. They are suitable for liquefied natural gas, liquefied gas, petroleum gas and etc.
Describes the design and product range:
◇ Product varieties: gate valves, globe valves, ball valves, butterfly valves and check valves
◇ Design basis: API600, API6D, JB/T7749
◇ Flanged ends: ASME B16.5, GB/T9113
◇ Butt-welding ends: ASME B16.25, GB/T12224
◇ Face-to-face dimension: ASME B16.10, GB/T12221
◇ Inspection and test: API598, API6D, JB/T9092
◇ Cryogenic inspection and test: JB/T7749
◇ Pressure rating: Class150~600, PN16~PN100
◇ Product range: 1/2"~24", DN15~DN600
◇ Shell materials: CF8, CF8M
◇ Design of safe prolonged stem
◇ Design of bleeding in case of abnormal pressure increase in middle cavity
◇ Design of prolonged bonnet for gate valves and globe valves
◇ Antistatic design for ball valves
◇ Operation methods: manual, electric or pneumatic operation
◇ Overlay welding by hard alloy can be performed on the seat surface according to specifications in API600
◇ The stem length can be made according to users'requirements..
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