H71H不锈钢对夹升降式止回阀◆对夹式止回阀主要技术参数：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H71W-16P1.62.41.76≤200水、蒸体、油品等H71H-25Q2.53.752.75≤235H71W-25H≤300H71W-25P≤200硝酸等腐蚀性介质H71W-40H4.06.04.4≤300水、蒸体、油品等H71W-40P≤200硝酸等腐蚀性介质◆对夹式止回阀主要零部件材质:规格型号阀体阀瓣弹簧H71W-25H、RH71W-40H2Cr131Cr131Cr18Ni9TiH71W-16P、RH71W-25PZG1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni9Ti◆对夹式止回阀规格尺寸表：公称通径DN(mm)LD1.62.54．015254848482031.55858582535.56868683240808080404590909050561051051056563125125125807114014014010080160165165125110190195195150125215225225200160270285290250200330340350300250385400415尼威止回阀相关产品:175H48Y/H空排止回阀H83H/Y卡箍角式止回阀H44X-10S塑料旋启式止回阀H41H/W美标止回阀H11H/H61H内螺纹锻钢止回阀H42X底阀H44F46旋启式衬氟止回阀H41F46升降式衬氟止回阀H12H/W不锈钢立式内螺纹止回阀H14W不锈钢内螺纹旋启式止回阀H40F46衬氟升降式止回阀H42H/W不锈钢立式止回阀H41H升降式止回阀H44H旋启式止回阀H72Y对夹式高压止回阀H41X全铜消声止回阀H76X软密封蝶型止回阀H76H对夹式蝶形止回阀H74H对夹圆型止回阀H74I型对夹式薄型止回阀H71H不锈钢对夹升降式止回阀H71H对夹式全铜止回阀HQ45X微阻球形止回阀HQ44X微阻球形止回阀HQ41X滚球式止回阀H44X（SFCV）橡胶瓣止回阀H41X消声止回阀HH44X微阻缓闭止回阀HH46X、HH48X、HH49X微阻缓闭止回阀H42X（DRVZ）静音式止回阀CVKR静音止回阀（大口径静音式止回阀）H77H对夹单瓣蝶型止回阀)