概述；主要外型和连接尺寸公称通经DNLHH1H2φB1排放口有效过滤面积ⅠⅡⅢ252205201107076R1/2"DN20平面RFDN20凸面M0.0036193222052011070760.003619402806301201001140.005718502806301201001140.005719653307501601101400.009613803408601801401680.015391004201040220170219R3/4"0.0246415050013753102202730.0486620056015603902803250.0785825066017704803204260.1200530075020006404004780.16534主要外型和连接尺寸公称通经DNLHH1H2φB1排放口有效过滤面积ⅠⅡⅢ2005602005390280325R3/4"DN20平面RFDN20凸面M0.0785825066023204803204260.1206530075028706404004800.165373508003305770450500R1"0.222540084036757805205500.291645096040709806006000.36425001080423510906507000.4587