产品名称规格：对夹升降式止回阀材质：铸钢不锈钢型号公称压力PN(MPa)试验压力PS(MPa)工作温度(℃)适用介质壳体密封RH71W-16P1.62.41.76≤200水、蒸体、油品等RH71H-25Q2.53.752.75≤235RH71W-25H≤300RH71W-25P≤200硝酸等腐蚀性介质RH71W-40H4.06.04.4≤300水、蒸体、油品等RH71W-40P≤200硝酸等腐蚀性介质规格型号阀体阀瓣弹簧RH71H-16Q、RH71H-25QQT400-152550CrCARH71W-25H、RH71W-40H2Cr131Cr131Cr18Ni9TiRH71W-16P、RH71W-25PZG1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni9Ti)