What does each letter in GJ34W-320P(H) stand for?
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I don’t know what each letter stands for on the high-pressure valves used in the factory’s high-pressure equipment.
The model you have is probably incorrect. It should be GJ44W-320P: G stands for high pressure, J stands for globe valve, 4 stands for flange connection, W stands for sealing surface and body sealing, 320 represents the pressure level, and P denotes stainless steel 304. That H character is likely unnecessary.
It indicates that dehydrogenation treatment was performed before leaving the factory.
G stands for high pressure, J stands for stop valve, 3 stands for turbine-driven, 4 stands for flange connection. W indicates that the sealing surface material is the same as that of the body. 320 represents pressure, P represents stainless steel 304. (H) denotes hydrogen treatment has been applied (to prevent hydrogen-induced stress corrosion)