Home / Standards / GB/T 20910-2025 GB/T 20910-2025 Active Temperature and pressure safety valve for hot water supply system 热水系统用温度压力安全阀 Standard Type GBT ICS 13.240 CCS J16 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A