Design standards and technical specifications: National standardDesign standard: GB/T12237Structure length: GB/T 12221Connecting flange: GB/T9113 JB79 HG20592Te···

Performance specificationsDesign basis: GB/T ASMEDesign standard: GB/T 12237ASME B16.34Structural length: GB/T 12221ASME B16.10Connecting flange: GB/T 9113 JB79···

Design and manufacturing standardsDesign and Manufacturing: GB/T 12234Structure length: GB/T 12221Flange connection size: JB/T 79Inspection: JB/T 9092

Performance specificationsNominal pressure: PN1.6,2.5,4.0,6.4MPaStrength test pressure: PT2.4,3.8,6.0,9.6MPaHigh pressure sealing test pressure: 1.8, 2.8, 4.4, ···

SpecificationsNominal pressure: PN1.6,2.5,4.0,6.4MPaStrength testing pressure: PT2.4,3.8,6.0,9.6MPaSeat testing pressure(hign pressure): 1.8,2.8,4.4,7.1MPaAppli···