国标法兰尺寸对照表表 凸面平焊钢制管法兰 PN 1.0MPa(10bar) MM 公称通径DN 管子外径A 连接尺寸密封尺寸法兰厚度C 法兰内径B 法兰理论重量kg 法兰管径D 系列1/系列2螺栓孔中心圆直径K 螺栓孔直径L系列1/系列2螺栓、螺柱df数量n 螺纹Th.系列1/系列2 10149060144M1240212150.4615189565144M1245212190.51202510575144M1255214260.75253211585144M1265214330.893238140/135100184M1678216391.404045150/145110184M1685318461.715057165/160125184M16100318592.096573185/180145184M16120320752.848089200/195160184M16135320913.24100108220/215180188M161553221104.01125133250/245210188 M161853241355.40150159285/280240238M202103241616.67175194310270238M202403241967.44200219340/335295238M202653242228.24225245365325238M202953242489.30250273395/3903502312M2032032627610.70300325445/4404002312M2036842832812.90350377505/5004602316M2042842838016.9040042656551526/2516M24/M2248243043021.8045048061556526/2520M24/M2253243048424.4050053067062026/2520M24/M2258543253427.706006307807253020M2768553663439.407007208958403024M27800536715538008201015/10109503424M30905538817679009201115/111010503428M30100553891876参考100010201230/1220116036/3428M30/M331115538102090参考11001120134012703628M331222540125参考120012201455/1450138039/4132M3613255441223143参考 凸面平焊钢制管法兰 PN 1.6MPa(16bar) MM 公称通径DN 管子外径A 连接尺寸密封尺寸法兰厚度C 法兰内径B 法兰理论重量kg 法兰管径D 系列1/系列2螺栓孔中心圆直径K 螺栓孔直径L系列1/系列2螺栓、螺柱df数量n 螺纹Th.系列1/系列2 10149060144M1240214150.5515189565144M1245214190.71202510575144M1255216260.87253211585144M1265218331.183238140/135100184M1678218391.604045150/145110184M1685320462.005057165/160125184M16100322592.616573185/180145184M16120324753.458089200/195160188M16135324913.71100108220/215180188M161553261104.80125133250/245210188M161853281356.47150159285/280240238M202103281617.92175194310270238M202403281968.81200219340/3352952312M2026533022210.102252453653252312M2029533024811.7025027340535526/2512M24/M2232033227615.7030032516041026/2512M24/M2237543232818.10350, 37752047026/2516M24/M2243543438023.304004265805253016M2748543843031.004504806405853020M2754544248440.20500530715/7056503420M3060844853455.7060063084077036/4120M33/M3671855063480.8070072091084036/4124M33/M36788550724106.28008201025/102095039/4124M36898552824130.59009201125/1120105039/4128M3699854492491参考100010201255117042/4828M39/M4211105461024127参考11001120137012804228M3912225501124160参考120012201485139048/5432M45/M4813255521224186参考 凸面平焊钢制管法兰 PN 2.5MPa(25bar) MM 公称通径DN 管子外径A 连接尺寸密封尺寸法兰厚度C 法兰内径B 法兰理论重量kg 法兰管径D 系列1/系列2螺栓孔中心圆直径K 螺栓孔直径L系列1/系列2螺栓、螺柱df数量n 螺纹Th.系列1/系列2 10149060144M1240216150.6415189565144M1245216190.80202510575144M1255218260.99253211585144M1265218331.183238140/135100184M1678220391.964045150/145110184M1685322462.605057165/160125184M16100324592.716573185/180145188M16120324753.228089200/195160188M16135326914.06100108235/230190238M201603281106.0012513327022026/258M24/M221883301358.2615015930025026/258M24/M2221833016110.4017519433028026/2512M24/M2224833219611.9020021936031026/2512M24/M2227833222214.502252453953403012M2730233424817.002502734253703012M2733233427618.903003254854303016M2739043632826.80350377555/5504904016M3044844238034.35400426620/61055036/3416M33/M3050544