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/DN100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：A***EB16.5、JB／T79●压力温度：A***EB16.34、GB/T9131●结构长度：A***EB16.10、GB/T12221●检验与试验：GB/T13927、JB/T9092立式止回阀主要安装尺寸与重量GB1.6MPaDN1520253240506580100125150200L8090105110120140160185210275300380D95105115135145160180200215245280335Wt-----7.59.51119.536.54865GB2.5MPaDN1520253240506580100125150200L8090105110120140160185210275300380D95105115135145160180195230270300360Wt7.59.51220384970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!)