This document stipulates the material selection, structure and processing requirements for spare parts during the inspection and maintenance of steam system control valves, as well as the maintenance, assembly, accessory connection and adjustment, and testing of steam system control valves. This document is applicable to the maintenance, technical transformation, spare parts processing and other processes of steam system control valves such as steam regulating valves, steam desuperheating and pressure reducing valves, steam vent valves used in power plants, petroleum, chemical industry, coal chemical industry and other fields.
T/NXJX 051-2023 history
2023T/NXJX 051-2023 Servicing technical specification for control valve in steam application