執(zhí)行標(biāo)準(zhǔn) Administer Standard
種類
Type設(shè)計與制造
Design And
Manufacture結(jié)構(gòu)長度
Face to face法蘭尺寸
Flange Dimension壓力-溫度
Pressure
Temperature Lating試驗-檢驗
Znspection And Test旋啟式止回閥
Swing Check ValveBG12236GB12221GB9113
JB79GB9131GB/T13927
JB/T9092升降式止回閥
Lift Check ValveGB12235<壓力試驗MPa Pressure Test
公稱壓力
Nominal Pressure1.62.54.06.410.016.0強(qiáng)度試驗
Shell Test2.43.86.09.615.024.0水密封試驗
Water Seal Test1.82.84.47.011.018.0氣密封試驗
Air Seal Test0.5-0.7<主要零件材料及性能 Main Part Materials and Property
體、蓋、瓣
Body Cover Disc閥桿
Stem密封面
Sealing Face墊片
Sealing Shim密封面
Sealing Face工作溫度℃
Working
Temperature適用介質(zhì)
Suitable MediumWCBWCB1Cr13增強(qiáng)柔性石墨
1Cr13/柔性石墨
不銹鋼/耐酸石棉
PTFE
齒型墊片
Enhanced Flexiblo
Graohite
1Cr13/ Flexiblo
Graohite
Stainless Steel/Acid-
proof Asbestos
Tooth profile gasket13Cr
STL
本體材料
With Body
Material
PTFE
尼龍
Nylon≤425水 蒸汽 油品
Water
Steam
Oil GoogsWC6WC6≤540WC9WC9≤570ZGCr5MoZGCr5Mo≤550ZG1Cr18Ni9TiZG1Cr18NTi1Cr18Ni9Ti≤200硝酸類Nitric AcidZG1Cr18Ni12Mo2TiZG1Cr18Ni12Mo2Ti1Cr18Ni12Mo2Ti≤200硝酸類Nitric Acid