H44H/W型旋启式止回阀的功能是用来防止管路中的介质倒流。属于自动阀类，启闭件靠流动介质的力量自行开启或关闭。只用于介质单向流动的管路上，阻止介质回流，以防发生事故。适用介质为：水、油品、蒸汽、酸性介质等。【产品图片】【连接尺寸】（2.5MPa）型号公称压力PN（MPa）公称通径DN（mm）H44H/W型旋启式止回阀尺寸(mm)重量（Kg）LDD1D2bZ-dD3HH44H-25CH44W-25PH44W-25R2.54020014511088204-1814510315.250230160125102204-1818516021.365290180145122228-1821517528.180310195160133228-1823518537.6100350230180158248-2327022056.7125400270210184288-2534024891150480300240212308-253752701292005503602952683412-254353502102506504253553203612-305154152903007504854103704016-303203508505504704304416-34420【连接尺寸】（1.6MPa）型号公称压力PN（MPa）公称通径DN（mm）H44H/W型旋启式止回阀尺寸(mm)重量（Kg）LDD1D2bZ-dD3HH44H-16CH44W-16PH44W-16R1.64020014511088204-1814510315.250230160125102204-1818516021.365290180145122228-1821517528.180310195160133228-1823518537.6100350230180158248-2327022056.7125400270210184288-2534024891150480300240212308-253752701292005503602952683412-254353502102506504253553203612-305154152903007504854103704016-303203508505504704304416-34420更多华天阀门产品欢迎进入上海华天机电设备公司主页或来电咨询021-60402001)