H42W-16P-DN15/DN20/DN25/DN32/DN40/DN50/DN65/DN80/DN100/DN125/DN150/DN200/DN250/DN300/DN350/DN400H42H-16C/P-DN15/DN20/DN25/DN32/DN40/DN50/DN65/DN80/DN100/DN125/DN150/DN200/DN250/DN300/DN350/DN400H42H-25-DN15/DN20/DN25/DN32/DN40/DN50/DN65/DN80/DN100/DN125/DN150/DN200/DN250/DN300/DN350/DN400H42H-40-DN15/DN20/DN25/DN32/DN40/DN50/DN65/DN80/DN100/DN125/DN150/DN200/DN250/DN300/DN350H42H-64-DN15/DN20/DN25/DN32/DN40/DN50/DN65/DN80/DN100/DN125/DN150H42H-100-DN15/DN20/DN25/DN32/DN40/DN50/DN65/DN80/DN100H42W、H42H、H42Y铸(锻)钢立式止回阀产品概述H42W/H/Y立式止回阀严格按API6D、GB/T12235标准设计制造,本系列阀门正常处于关闭状态，由于管线中进口端介质的压力作用，而克服弹簧阻力使阀门开启。当进口端介质压力低于出口端时，弹簧将阀芯推向阀座而使阀门关闭，阻止介质逆流，故起止回作用。本阀门由于采用弹簧支撑阀芯，故采用立式安装或卧式装均可。本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。铸钢立式止回阀设计与制造标准●设计与制造：API6D、GB/T12236●法兰尺寸：ASMEB16.5、JB／T79●压力温度：ASMEB16.34、GB/T9131●结构长度：ASMEB16.10、GB/T12221●检验与试验：GB/T13927、JB/T9092压力试验公称压力PN(Lb)强度试验水密封试验气密封试验MPaLbf/in2MPaLbf/in2MPaLbf/in21503.14502.23150.5-0.760-1003007.811255.681560015.3222511.21630公称压力PN(MPa)强度试验水密封试验气密封试验1.5*PN(MPa)1.1*PN(MPa)0.5-0.7(MPa)1.62.41.80.6MPa2.53.82.84.06.04.46.49.67.110.015.011.0铸钢立式止回阀主要材料明细表:序号NO.零件名称PartName碳钢系列CarbonSteel合金钢系列Alloysteel不锈钢系列StainlessSteelASTM/ASME1阀体/BodyA216/WCBA217/WC9A351/CF8A351/CF3M2阀座/SeatA105A182/304A182/304A182/316L3阀瓣/DiscA105A182/F304A182/F304A182/F316L4弹簧/Spring316316316316L5密封垫片/Gasket304+夹柔性石墨316+夹柔性石墨/PTFE6阀盖/BonnetA216/WCBA217/WC9A351/CF8A351/CF3M适用介质水、蒸汽、油品等水、蒸汽、油品等硝酸、醋酸等适用温度—29℃～425℃—29℃～550℃—29℃～200℃注:客户需求的其他材质也可采用.密封面材料配对客户指定内件代号决定国标铸钢立式止回阀主要安装尺寸与重量GB1.6MPaDN1520253240506580100125150200L8090105110120140160185210275300380D95105115135145160180200215245280335Wt-----7.59.51119.536.54865GB2.5MPaDN1520253240506580100125150200L8090105110120140160185210275300380D95105115135145160180195230270300360Wt7.59.51220384970GB4.0MPaDN1520253240506580100125150200L8090105110120140160185210275300380D95105115135145160180195230270300375Wt7.59.51220384972注:.客户需要其它型号规格,请将型号规格传真至保特律阀门销售部!)