T/MCPA 004-2024 Pipe inspection gate valve for maintenance purposes
T/MCPA 004-2024 Pipe inspection gate valve for maintenance purposes
Basic Information
Scope
Scope: This standard specifies the structural types and dimensions, requirements, test methods, inspection rules, marking, and supply of gate valves for the maintenance of water supply and drainage pipelines (hereinafter referred to as gate valves). This standard applies to gate valves for the maintenance of water supply and drainage pipelines with nominal sizes of DN50 to DN900 (where the nominal size is not greater than DN400, the nominal pressure is less than or equal to PN16; where the nominal size is greater than DN400 and not greater than DN900, the nominal pressure is less than or equal to PN10), with a maximum operating temperature of 80℃, and a connection type of flange or socket. The design, manufacture, and acceptance of gate valves for the maintenance of water supply and drainage pipelines with a spheroidal cast iron shell are covered by this standard. Main technical contents: This standard specifies the structural types and dimensions, requirements, test methods, inspection rules, marking, and supply of gate valves for the maintenance of water supply and drainage pipelines (hereinafter referred to as gate valves).