球阀,气动球阀.法兰球阀,三通法兰球阀,气动三通法兰球阀 气动三通法兰球阀主要外形和连接尺寸 单位mm Q648/649F-16 | 通径DN | L | L1 | D | K | D1 | n-Φd | b | f | H | W | mm | in | 25 | 1″ | 200 | 100 | 115 | 85 | 65 | 4-Φ14 | 16 | 2 | 193 | 140 | 32 | 1 1/4″ | 220 | 100 | 140 | 100 | 76 | 4-Φ18 | 18 | 2 | 212 | 164 | 40 | 1 1/2″ | 250 | 125 | 150 | 110 | 84 | 4-Φ18 | 18 | 2 | 230 | 164 | 50 | 2″ | 260 | 130 | 165 | 125 | 99 | 4-Φ18 | 20 | 3 | 268 | 190 | 65 | 2 1/2″ | 300 | 150 | 185 | 145 | 118 | 4-Φ18 | 20 | 3 | 293 | 210 | 80 | 3″ | 320 | 160 | 200 | 160 | 132 | 8-Φ18 | 20 | 3 | 325 | 247 | 100 | 4″ | 370 | 185 | 220 | 180 | 156 | 8-Φ18 | 22 | 3 | 380 | 276 | 125 | 5″ | 430 | 215 | 250 | 210 | 184 | 8-Φ18 | 22 | 3 | 468 | 348 | 150 | 6″ | 480 | 240 | 285 | 240 | 211 | 8-Φ23 | 24 | 3 | 510 | 378 | 200 | 8″ | 550 | 275 | 340 | 295 | 256 | 12-Φ23 | 24 | 3 | 655 | 432 | 法兰标准:GB9113亦可按ANSI B16.5、JIS B2212 |