ANSI/ASME B31.3 B31.1（2017、英文版）.pdf

ANSIASME ASME B31.3 ASME B31.1 Chemical oil Power plant Refineries ANSI/ASME B31.1 power piping The ASME B31.1,Piping for industrial plants and marine applications. The ASME B31.1 Power piping specification regulates the proper installation, inspection,and maintenance of power piping systems,dictating the proper design,materials,fabrication,erection,and testing of piping. Piping elements Piping ponents specifically covered by the ASME B31.1 specification include 1.)Pipe 2.)Flanges 3.)Bolting 4.)Gaskets 5.)Valves 6.)Relief devices 7.)Fittings 8.)Pressure bearing ponents. Additional piping ponents used to prevent undue structural stress upon installed piping,including supports and hangers are also covered. ANSI/ASME B31.1 power piping External piping External piping such as external boiler piping is governed by the ASME B31.1 specification.This code regulates all high temperature, high pressure boilers where steam pressure exceeds 15 psig,water pressure exceeds 160 psig,or temperature exceeds 250 Fahrenheit. Typical external piping applications include the transportation of steam,water,oil,gas,or oxygen. Identification External boiler piping is generally considered to be pip...