T/ZZB 1345-2019 Electromagnetic gas proportional valve
T/ZZB 1345-2019 Electromagnetic gas proportional valve
Basic Information
Scope
Main technical content: This standard specifies the terms and definitions, product classification, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitments for electromagnetic gas proportional valves (referred to as gas proportional valves). This standard applies to electromagnetic gas proportional valves used in gas appliances with a rated voltage greater than 6V, a maximum gas supply pressure not exceeding 10kPa, a nominal diameter not exceeding DN50, and an output heat load not exceeding 100kW. The gas referred to in this standard is the gas defined in GB/T 13611. When using gases other than those specified in GB/T 13611, the test gas shall be provided in accordance with the gas specified in the product design, and the pressure range shall refer to the relevant provisions of GB/T 13611. This standard does not apply to the following gas sources and devices: — dimethyl ether; — electronic gas-air proportional control systems; — pneumatic gas-air proportional control systems.