美标升降式锻钢止回阀标准材质选用表序号零件名称CStoASTMAStoASTMSStoASTMTypeA105NTypeF22TypeF304(L)TypeF316(L)1阀体A105NA182F22A182F304(L)A182F316(L)2铭牌SS3阀瓣A276420A276304A276304(L)A276316(L)4阀盖A105NA182F22A182F304(L)A182F316(L)5垫片316夹柔性石墨316夹PTFE6螺栓A193B7A193B16A193B8(M)A193B8(M)适用介质水、蒸汽、油品等水、蒸气、油品等硝酸、醋酸等适用温度-29°C～425°C-29°C～550°C-29°C～200°C注意：客户需求的其他材质也可采用。密封面材料配对由客户指定内件代号决定。CS=碳钢；AS=合金钢；SS=不锈钢；连接尺寸及重量参数尺寸（mm)和重量（Kg）NPS1/23/4111/411/22L(RTJ)L1(BW)150108117127140165203300152178203216229267600165190216229241292H150,30061617995103118600617995103118135重量150RTJ2.563.374.378.178.9412.64BW1.701.902.105.125.507.89300RTJ2.733.654.748.779.6013.70BW1.902.103.005.126.607.85600RTJ3.004.005.839.4710.1015.6BW2.003.124.257.258.5613.60)