Material and Construction Standards for LNG Cryogenic Valves
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- Time of issue:2025-02-21 13:58
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(Summary description)LNG cryogenic valves are manufactured to meet the highest industry standards, ensuring their reliability and performance in extreme low-temperature environments. These valves are designed to comply with standards such as ISO 17292 and BS 6364, which govern their construction and testing. The materials used, including CF3M, CF3, CF8M, and CF8 (equivalent to F316L, F304L, F316, and F304), are selected for their excellent corrosion resistance and durability, making them suitable for handling LNG, O2, N2, and Ar in both gaseous and liquid states.
Material and Construction Standards for LNG Cryogenic Valves
(Summary description)LNG cryogenic valves are manufactured to meet the highest industry standards, ensuring their reliability and performance in extreme low-temperature environments. These valves are designed to comply with standards such as ISO 17292 and BS 6364, which govern their construction and testing. The materials used, including CF3M, CF3, CF8M, and CF8 (equivalent to F316L, F304L, F316, and F304), are selected for their excellent corrosion resistance and durability, making them suitable for handling LNG, O2, N2, and Ar in both gaseous and liquid states.
- Categories:Industry news
- Author:
- Origin:
- Time of issue:2025-02-21 13:58
- Views:
LNG cryogenic valves are manufactured to meet the highest industry standards, ensuring their reliability and performance in extreme low-temperature environments. These valves are designed to comply with standards such as ISO 17292 and BS 6364, which govern their construction and testing. The materials used, including CF3M, CF3, CF8M, and CF8 (equivalent to F316L, F304L, F316, and F304), are selected for their excellent corrosion resistance and durability, making them suitable for handling LNG, O2, N2, and Ar in both gaseous and liquid states.
The construction of LNG cryogenic valves incorporates several advanced features to enhance their performance. The spring preloaded valve seat structure, for example, effectively balances sealing performance with operational torque, ensuring a tight seal while maintaining ease of operation. Additionally, the valve stem packing utilizes a disc spring pre-tightening structure, which provides consistent sealing force and reduces the risk of leakage over time.
Safety is a key consideration in the design of these valves. Holes are punched on the bracket to ensure a secure connection between the extended section and the middle cavity, eliminating potential hidden risks. Pressure relief holes at the upstream end of the sphere help manage pressure within the middle cavity, preventing over-pressurization and ensuring safe operation. The use of high-strength grade 2 studs for the middle cavity pressure fastener further enhances safety by allowing precise control of the gasket's pre-tightening force.
To ensure the highest level of quality, all pressure-bearing welds in LNG cryogenic valves undergo 100% radiographic inspection. This rigorous testing, combined with the use of high-quality materials and advanced design features, makes LNG cryogenic valves a reliable choice for critical cryogenic applications.
