中线型法兰式蝶阀
结构与材质:
| 序号 | 名称 | 材质 |
| 1 | 阀体 | 球墨铸铁/铸造碳钢 |
| 2 | 阀杆 | 不锈钢 |
| 3 | 销 | 不锈钢 |
| 4 | 蝶板 | 不锈钢/球墨铸铁喷塑/球墨铸铁整体包胶 |
| 5 | 包覆橡胶 | NR/NBR/EPDM |
*只有当阀门为手动操作,且介质为≤70℃水时,才可使用球墨铸铁喷塑蝶板。

主要外形与连接尺寸:
| 公称尺寸 | L | D | D1 | N-d | B | D0 | H1 | H2 | L1 | ||||||||||
| PN10 | PN16 | CL150 | PN10 | PN16 | CL150 | PN10 | PN16 | CL150 | PN10 | PN16 | CL150 | 蜗轮式 | 手柄式 | 蜗轮式 | 手柄式 | ||||
| DN80 | 114 | 200 | 200 | 190 | 160 | 160 | 152.5 | 8-19 | 8-19 | 4-19 | 19 | 150 | 85 | 170 | 165 | 130 | 268 | ||
| DN100 | 127 | 220 | 220 | 229 | 180 | 180 | 190.5 | 8-19 | 8-19 | 8-19 | 19 | 150 | 100 | 190 | 185 | 130 | 268 | ||
| DN125 | 140 | 250 | 250 | 254 | 210 | 210 | 216 | 8-19 | 8-22 | 8-22 | 19 | 150 | 125 | 200 | 195 | 130 | 268 | ||
| DN150 | 140 | 285 | 285 | 279 | 240 | 240 | 241.5 | 8-22 | 8-22 | 8-22 | 19 | 220 | 140 | 225 | 225 | 190 | 268 | ||
| DN200 | 152 | 340 | 340 | 343 | 295 | 295 | 395.5 | 8-22 | 12-22 | 8-22 | 20 | 300 | 170 | 250 | 265 | 240 | 350 | ||
| DN250 | 165 | 395 | 405 | 406 | 350 | 355 | 362 | 12-22 | 12-28 | 12-25 | 22 | 300 | 200 | 285 | - | 240 | - | ||
| DN300 | 178 | 445 | 460 | 483 | 400 | 410 | 432 | 12-22 | 12-28 | 12-25 | 24 | 300 | 235 | 335 | - | 240 | - | ||
| DN350 | 190 | 505 | 520 | 533 | 460 | 470 | 476 | 16-22 | 16-28 | 12-29 | 24 | 26 | 26 | 300 | 255 | 400 | - | 240 | - |
| DN400 | 216 | 565 | 580 | 597 | 515 | 525 | 540 | 16-28 | 16-31 | 16-29 | 24 | 28 | 28 | 220 | 280 | 445 | - | 335 | - |
| DN450 | 222 | 615 | 640 | 635 | 565 | 585 | 578 | 20-28 | 20-31 | 16-32 | 25 | 28 | 28 | 220 | 310 | 485 | - | 335 | - |
| DN500 | 229 | 670 | 715 | 699 | 620 | 650 | 635 | 20-28 | 20-34 | 20-32 | 26 | 28 | 28 | 350 | 355 | 535 | - | 350 | - |
| DN600 | 268 | 780 | 840 | 813 | 725 | 770 | 749.5 | 20-31 | 20-37 | 20-35 | 30 | 36 | 36 | 350 | 390 | 620 | - | 350 | - |
| DN700 | 292 | 895 | 910 | - | 840 | 840 | - | 24-31 | 24-37 | - | 32.5 | 39 | - | 350 | 525 | 670 | - | 350 | - |
| DN800 | 318 | 1015 | 1025 | - | 950 | 950 | - | 24-34 | 24-40 | - | 35 | 43 | - | 350 | 580 | 765 | - | 438 | - |
| DN900 | 330 | 1115 | 1126 | - | 1050 | 1050 | - | 28-34 | 28-40 | - | 37.5 | 46.5 | - | - | - | - | - | - | - |
| DN1000 | 410 | 1230 | 1255 | - | 1160 | 1170 | - | 28-37 | 28-43 | - | 40 | 50 | - | - | - | - | - | - | - |