产品名称：对夹式高压止回阀二、对夹式高压止回阀主要性能规范：型号公称压力PN（MPa）试验压力p（MPa）工作压力p/MPa工作温度/℃工作介质壳体密封H72Y-16016241616≤200氮、氢、铜按、氨气、碱液H72Y-32032483232H72W-220R22332222尿素、甲胺H72W-320R32483232三、对夹式高压止回阀主要零件材料：零件名称阀座、阀瓣阀盖阀体O形圈H72Y-160H72Y-320铬钢碳钢铬钢氟26-41橡胶H72W-220RH72W-320R铬镍钼不锈—四、对夹式高压止回阀主要尺寸及重量：公称通径尺寸（mm)重量(kg)DD1dMLL110954210M24601553.415954212M24601584.1251055015M33651636.9321156225M42801808.0401658832M529023015501658839M641152652736520011653M80140315498022513860M1001603608810026016076M1251804209112530019590M155200460115150330212120M175220500145200400250176M215240570160公称通径DN（mm）尺寸（mm）重量(kg)DD1dMLL110954210M24601553.4151055012M33651584.5251156223M42801807.3321357029M48902008.7401658834M52115255175020011653M80140300306522513860M100160345568026016068M1251804109210030019585M155200470109125330212120M175220510135150400250135M215240570160200480320176M265280670180)