GB/T 39493-2020 Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Pressure regulators

Scope: This standard specifies the classification and grouping, structure and materials, requirements, test methods, inspection rules, marks, installation and operation instructions, packaging, transportation and storage. This standard applies to gas-fired water heaters, gas heating water heaters, gas cookers, gas burners/machines, gas heaters, gas steamers, gas boilers, etc. The following pressure regulating devices for appliances or combustion equipment: --- self-operated pressure regulating device; --- auxiliary energy can be used, and the auxiliary energy is only used to change the outlet pressure setting rather than the positive pressure, zero pressure and negative pressure of the control mode pressure regulator. This standard does not apply to: --- Pressure regulating devices installed outdoors and exposed to the environment; --- Gas/air ratio regulating devices/systems.

GB/T 13611 Classification and basic characteristics of city gas
GB/T 2828 Batch-by-batch inspection counting sampling procedure and sampling table (applicable to continuous batch inspection)
GB/T 30597-2014 General requirements of safety and control devices for gas burners and gas-burning appliances

2020 GB/T 39493-2020 Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Pressure regulators

GB/T 39493-2020Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Pressure regulators