This standard specifies the definition, requirements, test methods, inspection rules and marking, packaging and storage of metal diaphragm pressure regulating valves. This standard applies to metal diaphragm pressure stabilizing valves with nominal pressure PN ≤ O.5MPa, nominal diameter DN 2 to 6 mm, ambient temperature not greater than 100°C, and medium such as hydrogen, nitrogen, air, etc.
HG/T 3692-2001 history
2002HG/T 3692-2001 Specofocations for metal diaphragm pressure regulator