The B31.1 Code serves as a companion to ASME’s B31.3 Code on Process Piping as well as to the other codes in ASME’s B31 series. Together they remain essential references for anyone engaged with piping. Intended for manufacturers, designers, operators and owners of piping systems including, steam, water, oil, gas and air services. It is prominently referenced in ASME’s Boiler and Pressure Vessel Code, Section I. Energy Plant Solutions have their own welding procedures and a team of certified ASME IX welders capable of carrying out major piping works for steam, condensate, thermal oil and gas systems.