H42H-150LB-DN15/DN20/DN25/DN32/DN40/DN50/DN65/DN80/DN100/DN125/DN150/DN200/DN250/DN300/DN350/DN400DN15/DN20/DN25/DN32/DN40/DN50/DN65/DN80/DN100/DN125/DN150/DN200/DN250/DN300/DN350/DN400H42H-16C-H42H-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。Class150DN(mm)2540506580100125150200250300350400NPS(in)11-1/222-1/23456810121416L(RF)114146159178190216241254305356457533572D108127152178190229254279343406483533597Wt(Kg)713203539558090182258422515630Class300DN(mm)2540506580100125150200250300350400NPS(in)11-1/222-1/23456810121416L(RF)114146159178190216241254305356457533572D108127152178190229254279343406483533597Wt(Kg)713203539558090182258422515630Class600DN(mm)2540506580100125150200250300350400NPS(in)11-1/222-1/23456810121416L(RF)114146159178190216241254305356457533572D108127152178190229254279343406483533597Wt(Kg)713203539558090182258422515630)