What standards should the valves on liquid chlorine pipelines comply with?
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For valves such as stop valves and ball valves installed on liquid chlorine pipelines, other than those specifically designed for liquid chlorine, what relevant standards must they comply with? Is it still the same as ordinary valves?
Execution standards for ball valves specifically designed for liquid chlorine: Design and manufacturing: GB/T12237. Structural length: GB/T12221. Connection flanges: JB/T78; JB/T79. Testing and inspection: GB/T 13927. General execution standard: GB5138-1996
Use a special stop valve for liquid chlorine – its sealing mechanism is different. For critical applications, it is recommended to use a special stop valve for liquid chlorine equipped with a bellows seal. As for the standards, they relate to the type of flange; each valve has its own standards
It is a useful liquid chlorine stop valve; however, in addition to this valve, other ordinary types of valves are also used. It’s just not clear whether there are any special requirements for these valves when used with a high-risk medium like liquid chlorine
Those with requirements are welcome to engage in technical exchanges
It must be able to withstand chloride corrosion and meet requirements regarding pipeline pressure, temperature, etc. Fluorinated-lined valves should be preferred.
Bellows valves made of Hastelloy