公称通径DNLHH1H2ØB1排放口有效过滤面积WT(kg)IIIIII2522048016026076R1/2mDN20平面RFDN20平面M0.00361913.832220495160270760.00361916.5402805501803001140.00571819502805501803001140.00571823653306502203501400.00961339803407402604001680.001539521004208803104702190.02464821505001175430620273R3/4m0.0486620820056015405307803250.0785824525066018906409304260.12005280300750213084012004780.16537390公称通径DNLHH1H2ØB1排放口有效过滤面积WT(kg)IIIIII2005601875540230325DN20平面RFDN20平面M0.078583032506602170650270426R3/4m0.1206543930075026908603204800.1653757635080030851010370500R1m0.2225833400840344511504005500.2916839450960381013104406000.36429785001080414514404707000.45871444)