，Decomprssion Valves 　 The piston types 　 The lever types 　 The bellows types 　 The film types ，Butterfly Valves 　 flange valve 　 wafer valve 　 lug valve 　 butt-joint valve 　 Expanding valve ，Regulate Valves 　Motor driven 　Pneumatic 　The liquid is moved ，Water Control Valves 　 The mail valve 　 Decompression valve 　 Check valve 　 Pilot valve 　 Adjusting valve 　 Let out the pressure 　 Remote control the v ，Attemper and Reducer Device 　 Third generation 　 4th generation 　 more inferior high pressure 　 high temperature pressure TOLERANCE OF FITTINGS Tolerances for socket-welding fittings Tolerances for Threaded Fittings The correlation of thread and Socket-welding Fittings with Pressure Class Designation or Schedule No.of Pipe Tolerances for butt-welding fittings Angularity tolerance of Butt-welding fittings Welding Bevel of Fittings OUTSIDE DIAMETER AND WALL THICKNESS Outside Diameter and Wall thickness GB/T 12459、GB/T 13401 Outside Diameter and Wall thickness SH3408、SH3049 Outside Diameter and Wall Thickness ASME B36.10M、B36.19M Outside Diameter and Wall Thickness JIS B2311、B2312、B2313 Outside Diameter and Wall Thickness (A SERIES) SY/T 1510 Outside Diameter and Wall Thickness (B SERIES) SY/T 0510 THE GENERAL MATERIAL FOR PRESSURE PIPING FITTINGS THE GENERAL MATERIAL FOR CHINESE PRESSURE PIPING FITTINGS THE GENERAL MATERIAL FOR AMERICAN PRESSURE PIPING FITTINGS CARBON,ALLOY AND STAINLESS STEEL >ASME FOR PIPES,FITTINGS AND FLANGES

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