国标旋启式止回阀产品型号：H44H/W公称通径：DN50～800mm压力范围：PN1.6~16.0MPa工作温度：-196℃～+550℃主体材质：碳钢、不锈钢、合金钢适用介质：水、蒸汽、油品、硝酸类、醋酸类设计制造：GB12236结构长度：GB12221连接法兰：JB/T79-1994 试验与检验：JB/T9092-1999国标旋启式止回阀用途及特点H44H/W旋启式止回阀严格按GB12236标准设计制造，销轴与阀瓣连接采用内装式结构，性能优良，密封更可靠。产品广泛应用于石油、化工、制药、电力行业等各种工况的管路上。国标旋启式止回阀主要性能规范试验压力公称压力（MPa）1.62.54.06.410.0壳体试验2.43.86.09.615.0密封试验1.82.84.47.111.0阀体材料WCB（C）CF8（P）CF8M（R）WC6WC9工作温度≤425≤100≤100≤550≤550适用介质水、蒸汽、油品硝酸类醋酸类水、蒸汽水、蒸汽国标旋启式止回阀执行标准设计制造：GB12236结构长度：GB12221连接法兰：JB/T79-1994试验与检验：JB/T9092-1999国标旋启式止回阀主要连接与外形尺寸及重量压力公称通径(DN)主要连接尺寸(mm)H44外形尺寸重量(kg)mmLDD1D2bfz-φdH2.0Mpa50203152120.592161.64-191651765216178139.510517.51.64-191752580241190152.512719.51.64-1919029100292229190.5157241.68-1921550125330254216186241.68-2224575150356279241.521625.51.68-2226585200495343298.5270291.68-2232015025062240636232430.51.612-25365240300698483432381321.612-25415350350787533476413351.612-29460460400864597540470371.616-29495580500978698635584431.620-325908406001295813749.5692481.620-3565011407001448927863.580071.51.628-355.0MPa502671651279222.51.68-19190286529219014910525.51.68-2220533803182101681272851.68-2222045100356254200157321.68-2224570125400279235186351.68-2227511015044431827021636.51.612-2229515020053338133027041.51.612.25330230250622444387.5324481.616-29420390300711521451381511.616-32480520350838584514.5413541.620-32535710400864648571.547057.51.620-355858905001016775686584.563.51.624-3568513606001364914.5813692.5701.624-41785204010.0MPa5029216512792266.48-192103265330190149100296.48-222304280356210168127326.48-2225560100432273216157386.48-2529595125508330266.5186456.48-29310120150559355.529221647.56.412-29365220200660419.5349270566.412-3242039025078750843232463.56.416-3550563030083855948938166.56.420-35545870350889603.55274137106.420-3860094040099168660347076.56.420-416501100