文档介绍：对夹式止回阀 H71 基本信息栏品名型号规格压力材质对夹式止回阀 H71H DN50-600mm - 碳钢;不锈钢 H71H 型升降对夹式止回阀由阀体、阀瓣、弹簧等组成, 水平或垂直安装于管路系统,防止介质倒流, 具有结构短、体积小、质量轻;阀瓣关闭快速,水锤压力小;流道通畅,流体阻力小;动作灵敏,密封性能好。 H71 对夹止回阀结构图技术参数型公称壳体密封工作温度适用温度号通径 H71 H-16Q ≤ 235 ℃水、蒸气、油品等 H71 H-25Q ≤ 235 ℃ H71 W-25H ≤ 300 ℃ H71 W-25P ≤ 200 ℃硝酸等腐蚀性介质 H71 W-40H 46 ≤ 300 ℃ H71W-4 0P ≤ 200 ℃水、蒸气 H71 系列对夹升降式止回阀的型号、材料及主要参数配管法兰公称压力常规产品型号 JB/T 74 ~90 、 GB/T 9112 ~9124 、 HG 20592 ~20614 H71H-10C H71W-10 P H71W-10P8 H71W-10P3 H71W-10R H71W-10R8 H71W-10R3 H71W-16C H71W-16 P H71W-16P8 H71W-16P3 H71W-16R H71W-16R8 H71W-16R3 H71W-25 H71W-25 P H71W-25P8 H71W-25P3 H71W-25R H71W-25R8 H71W-25R3 H71W-40 H71W-40 P H71W-40P8 H71W-40P3 H71W-40R H71W-40R8 H71W-40R3 H71W-63 H71W-63 P H71W-63P8 H71W-63P3 H71W-63R H71W-63R8 H71W-63R3 H71W-100 H71W-100 P H71W-100P8 H71W-100P3 H71W-100R H71W-100R8 H71W-100R3 H71W-160 H71W-160 P H71W-160P8 H71W-160P3 H71W-160R H71W-160R8 H71W-160R3 GB/T 9112 ~9124 、 HG 20615 ~20635 、 SH 3406 H71H-20C — H71W-20P8 H71W-20P3 — H71W-20R8 H71W-20R3 H71H-50 — H71W-50P8 H71W-50P3 — H71W-50R8 H71W-50R3 H71H-110 — H71W-110P8 H71W-110P3 — H71W-110R8 H71W-110R3 H71H-150 — H71W-150P8 H71W-150P3 — H71W-150R8 H71W-150R3 ANSI B Class150 H71H-A1C — H71W-A1P8 H71W-A1P3 — H71W-A1R8 H71W-A1R3 Class300 H71H-A3 — H71