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 ValveBG12236GB12221GB9113
JB79GB9131GB/T13927
JB/T9092升降式止回阀
Lift Check ValveGB12235<压力试验MPa Pressure Test
公称压力
Nominal Pressure1.62.54.06.410.016.0强度试验
Shell Test2.43.86.09.615.024.0水密封试验
Water Seal Test1.82.84.47.011.018.0气密封试验
Air Seal Test0.5-0.7<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 MediumWCBWCB1Cr13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 gasket13Cr
STL
本体材料
With Body
Material
PTFE
尼龙
Nylon≤425水 蒸汽 油品
Water
Steam
Oil GoogsWC6WC6≤540WC9WC9≤570ZGCr5MoZGCr5Mo≤550ZG1Cr18Ni9TiZG1Cr18NTi1Cr18Ni9Ti≤200硝酸类Nitric AcidZG1Cr18Ni12Mo2TiZG1Cr18Ni12Mo2Ti1Cr18Ni12Mo2Ti≤200硝酸类Nitric Acid