执行标准 Administer Standard
种类 Type | 设计与制造 Design And Manufacture | 结构长度 Face to face | 法兰尺寸 Flange Dimension | 压力-温度 Pressure Temperature Lating | 试验-检验 Znspection And Test |
旋启式止回阀 Swing Check Valve | BG12236 | GB12221 | GB9113 JB79 | GB9131 | GB/T13927 JB/T9092 |
升降式止回阀 Lift Check Valve | GB12235 |
<压力试验MPa Pressure Test
公称压力 Nominal Pressure | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 |
强度试验 Shell Test | 2.4 | 3.8 | 6.0 | 9.6 | 15.0 | 24.0 |
水密封试验 Water Seal Test | 1.8 | 2.8 | 4.4 | 7.0 | 11.0 | 18.0 |
气密封试验 Air Seal Test | 0.5-0.7 |
<主要零件材料及性能 Main Part Materials and Property
体、盖、瓣 Body Cover Disc | 阀杆 Stem | 密封面 Sealing Face | 垫片 Sealing Shim | 密封面 Sealing Face | 工作温度℃ Working Temperature | 适用介质 Suitable Medium |
WCB | WCB | 1Cr13 | 增强柔性石墨 1Cr13/柔性石墨 不锈钢/耐酸石棉 PTFE 齿型垫片 Enhanced Flexiblo Graohite 1Cr13/ Flexiblo Graohite Stainless Steel/Acid- proof Asbestos Tooth profile gasket | 13Cr STL 本体材料 With Body Material PTFE 尼龙 Nylon | ≤425 | 水 蒸汽 油品 Water Steam Oil Googs |
WC6 | WC6 | ≤540 |
WC9 | WC9 | ≤570 |
ZGCr5Mo | ZGCr5Mo | ≤550 |
ZG1Cr18Ni9Ti | ZG1Cr18NTi | 1Cr18Ni9Ti | ≤200 | 硝酸类Nitric Acid |
ZG1Cr18Ni12Mo2Ti | ZG1Cr18Ni12Mo2Ti | 1Cr18Ni12Mo2Ti | ≤200 | 硝酸类Nitric Acid |
体、盖、瓣 Body Cover Disc | 阀杆 Stem | 密封面 Sealing Face | 垫片 Sealing Shim | 密封面 Sealing Face | 工作温度℃ Working Temperature | 适用介质 Suitable Medium |
WCB | WCB | 1Cr13 | 增强柔性石墨 1Cr13/柔性石墨 不锈钢/耐酸石棉 PTFE 齿型垫片 Enhanced Flexiblo Graohite 1Cr13/ Flexiblo Graohite Stainless Steel/Acid- proof Asbestos Tooth profile gasket | 13Cr STL 本体材料 With Body Material PTFE 尼龙 Nylon | ≤425 | 水 蒸汽 油品 Water Steam Oil Googs |
WC6 | WC6 | ≤540 |
WC9 | WC9 | ≤570 |
ZGCr5Mo | ZGCr5Mo | ≤550 |
ZG1Cr18Ni9Ti | ZG1Cr18NTi | 1Cr18Ni9Ti | ≤200 | 硝酸类Nitric Acid |
ZG1Cr18Ni12Mo2Ti | ZG1Cr18Ni12Mo2Ti | 1Cr18Ni12Mo2Ti | ≤200 | 硝酸类Nitric Acid |
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