From the Editor: As an important infrastructure for hydrogen energy industry development, the hydrogen fueling station is the precondition to realize the large-scale use of hydrogen energy utilization devices. As one of the critical components of hydrogen fueling stations, valves have safety hazards such as spring fracture (check valve), wear (valve seat, valve needle), and leakage. Accidents occur frequently worldwide, and its safety performance has attracted much attention. On December 30, 2022, the National Standardization Administration Committee issued GB/T 42177-2022 "Technical requirements and test methods for gaseous hydrogen valves used in hydrogen fuelling stations." It is reported that this standard is a recommended national standard compiled for the first time and will be implemented on April 1, 2023. It will soon become the fundamental  reference for the technical requirements and testing methods of hydrogen valves in hydrogen fueling stations, actively supporting the high-speed and healthy development of the hydrogen energy industry.

GB/T 42177-2022 "Technical requirements and test methods for gaseous hydrogen valves used in hydrogen fuelling stations" is mainly drafted by Zhejiang University, Beijing Hydrosys Technology Co., Ltd., Foshan Green Development Innovation Research Institute, China National Institute of Standardization, et al. The main drafters include Jinyang Zheng, Wulin Han, Yanmei Yang, Yifan Li, et al. This standard is under the jurisdiction of TC309 (National Hydrogen Energy Standardization Committee) and is under the supervision of the National Standardization Management Committee.

This standard is not equivalent to ISO 19880-3:2018 (Gaseous hydrogen refueling stations Part 3: Valves), which specifies the technical requirements, tests, and marking requirements for hydrogen valves in hydrogen fueling stations. It is applicable to hydrogen valves in hydrogen fueling stations that meet the following conditions: (1) the ambient temperature is -40 ℃~60 ℃; (2) The hydrogen charging pressure shall not exceed 70MPa at 15 ℃.

This standard consists of 14 chapters, including scope, normative references, terminology and definitions, technical requirements, general testing methods and acceptable results, check valve, excess flow valve, control valve, break away coupling, manual valve, filter, safety valves, globe valve, marking, and et al.

Author: Li, Yifan

Reviewer: Hua, Zhengli