T/HGHX 01-2024 Active

Scope: This document specifies the scope, terms and definitions, general requirements, set pressure and measurement accuracy, on-site online detection techniques, detection timing and cycle, and basic requirements such as online detection record and report format, and data archiving for the online detection of spring-loaded safety valves used in petrochemical installations and flammable and explosive environments. This document applies to spring-loaded safety valves used in boilers, pressure vessels, and pressure pipelines in petrochemical production facilities with a valve diameter of DN15mm to 400mm, a set pressure of 0.1MPa to 32.0MPa, and a temperature of less than 550℃. However, it does not apply to the detection of safety valves for media such as hydrogen and pure oxygen with a working pressure greater than 1.6MPa. Main technical content: This document specifies the scope, terms and definitions, general requirements, set pressure and measurement accuracy, on-site online detection techniques, detection timing and cycle, and basic requirements such as online detection record and report format, and data archiving for the online detection of spring-loaded safety valves used in petrochemical installations and flammable and explosive environments. This document applies to spring-loaded safety valves used in boilers, pressure vessels, and pressure pipelines in petrochemical production facilities with a valve diameter of DN15mm to 400mm, a set pressure of 0.1MPa to 32.0MPa, and a temperature of less than 550℃. However, it does not apply to the detection of safety valves for media such as hydrogen and pure oxygen with a working pressure greater than 1.6MPa.