What standard do the valves specifically designed for hydrogen systems meet?
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In Table 4.4.9-15 of DL/T5210.5, there is a mandatory requirement: various valves in the hydrogen production system shall be gas-specific valves to ensure tightness and no leaks. I would like to ask the experts: What kind of valves should be used for hydrogen system valves? Which standard?
GB50177-2005 Requirements for valves
There are no special valves; the choice is made based on the temperature, pressure, and hydrogen service conditions.