由本体、压盖、密封圈、螺栓、螺母组成。本体、压盖、螺栓、螺母的材质采用Q235A,QT400-15.密封圈材料：NBR、CR、EPDM.
设计安装数据表
| DN | 标准型 | 法兰连接尺寸 | 限位螺栓 | |||||
| 毫米 | 英寸 | 最大长度 | 最小长度 | 安装长度L | D1 | n-d | n-M | Z-M |
| mm | mm | mm | ||||||
| 32 | 1.25 | 130 | 100 | 115 | 100 | 4-18 | 4-16 | 2-16 |
| 40 | 1.5 | 165 | 130 | 145 | 115 | |||
| 50 | 2 | 170 | 139 | 155 | 125 | |||
| 65 | 2.5 | 187 | 153 | 170 | 145 | |||
| 80 | 3 | 208 | 164 | 180 | 160 | |||
| 100 | 4 | 221 | 179 | 200 | 180 | 8-18 | 8-16 | |
| 125 | 5 | 237 | 192 | 215 | 210 | |||
| 150 | 6 | 260 | 210 | 235 | 240 | 8-23 | 8-2 | 2-2 |
| 200 | 8 | 275 | 224 | 250 | 295 | |||
| 250 | 10 | 292 | 238 | 265 | 350 | 12-23 | 12-2 | 3-2 |
| 300 | 12 | 308 | 255 | 280 | 400 | |||
| 350 | 14 | 328 | 272 | 300 | 460 | 16-3 | 16-2 | 4-2 |
| 400 | 16 | 345 | 286 | 315 | 515 | 16-25 | 4-22 | |
| 450 | 180 | 362 | 298 | 330 | 565 | 20-25 | 20-22 | 5-22 |
| 500 | 20 | 380 | 312 | 345 | 620 | 20-25 | ||
| 600 | 24 | 398 | 322 | 360 | 725 | 20-3 | 20-27 | 5-27 |
| 700 | 28 | 420 | 341 | 380 | 840 | 24-3 | 24-27 | 6-27 |
| 800 | 32 | 440 | 358 | 400 | 950 | 24-34 | 24-3 | 6-3 |
| 900 | 36 | 470 | 384 | 425 | 1050 | 28-34 | 28-3 | 7-3 |
| 1000 | 40 | 498 | 410 | 450 | 1160 | 28-34 | 7-3 | |
| 1200 | 48 | 530 | 440 | 485 | 1380 | 32-41 | 32-36 | 6-36 |
| 1400 | 56 | 560 | 460 | 510 | 1590 | 36-48 | 36-42 | 9-42 |
| 1600 | 64 | 580 | 480 | 530 | 1820 | 40-54 | 40-48 | 10-48 |
| 1800 | 72 | 620 | 509 | 560 | 2020 | 44-54 | 44-48 | 11-48 |
| 2000 | 80 | 680 | 500 | 590 | 2230 | 46-54 | 46-48 | 12-48 |
| 2200 | 88 | 720 | 540 | 630 | 2390 | 62-48 | 52-42 | 13-42 |
| 2400 | 96 | 740 | 580 | 660 | 2600 | 56-48 | 56-42 | 14-42 |
| 2600 | 104 | 780 | 600 | 690 | 2810 | 60-54 | 60-48 | 15-48 |
| 2800 | 112 | 810 | 620 | 715 | 3020 | 64-54 | 64-48 | 16-48 |
| 3000 | 120 | 840 | 640 | 740 | 3220 | 68-54 | 68-48 | 17-48 |