ZSSW气动三偏心对夹蝶阀长寿命、节能型蝶阀。其结构采用三维编心原理设计，阀座采用硬软密封兼容的多层次结构，加工精湛，工艺先进。本产品由阀体、蝶板、多层次阀座、阀杆、传动机构等主要部件组成。
主要外形及连接尺寸 D643(H、Y)-1.0、2.5(0.1、0.25MPa)
| 公称通径 | 外形尺寸 | 连接尺寸 | 执行器型号 | ||||||||||||
| PN1.0 | PN2.5 | ||||||||||||||
| L1 | L2 | H | H1 | L | D | D1 | b | n-φd | 1 | D | D1 | b | n-φd | ||
| 250 | 348 | 159 | 584 | 595 | 140 | 375 | 335 | 16 | 12-18 | 165 | 375 | 335 | 24 | 12-18 | GTD145 |
| 300 | 348/627 | 176/200 | 635/630 | 645 | 170 | 440 | 395 | 16 | 12-22 | 178 | 440 | 395 | 24 | 12-22 | GTD160/AW13 |
| 350 | 378/627 | 176/200 | 660/655 | 645 | 170 | 490 | 445 | 16 | 12-22 | 190 | 490 | 445 | 24 | 12-22 | GTD160/AW13 |
| 400 | 432/627 | 206/200 | 750/696 | 745 | 190 | 540 | 495 | 16 | 16-22 | 216 | 540 | 495 | 24 | 16-22 | GTD160/AW13 |
| 450 | 524/627 | 228/200 | 805/728 | 745 | 190 | 595 | 550 | 16 | 16-22 | 222 | 595 | 550 | 24 | 16-22 | GTD190/AW13 |
| 500 | 524/850 | 228/270 | 850/820 | 745 | 190 | 645 | 600 | 20 | 20-22 | 229 | 645 | 600 | 26 | 20-22 | GTD210/AW17 |
| 600 | 524/850 | 228/270 | 905/875 | 970 | 210 | 755 | 705 | 20 | 20-26 | 267 | 755 | 705 | 26 | 20-26 | GTD210/AW17 |
| 700 | 648/1158 | 275/350 | 1000/1084 | 970 | 210 | 860 | 810 | 20 | 24-26 | 292 | 860 | 810 | 26 | 24-26 | GTD255/AW20 |
| 800 | 648/1158 | 275/350 | 1060/1084 | 1020 | 210 | 975 | 920 | 20 | 24-30 | 318 | 975 | 920 | 26 | 24-30 | GTD255/AW20 |
| 900 | 648/1158 | 275/350 | 1110/1084 | 1220 | 250 | 1075 | 1020 | 20 | 24-30 | 330 | 1075 | 1020 | 26 | 24-30 | GTD255/AW20 |
| 1000 | 715/1158 | 324/375 | 1200/1126 | 1220 | 250 | 1175 | 1120 | 20 | 28-30 | 410 | 1175 | 1120 | 26 | 28-30 | GTD300/AW25 |
| 1200 | 715/1158 | 324/375 | 1330/1256 | 1240 | 250 | 1375 | 1320 | 20 | 32-30 | 470 | 1375 | 1320 | 28 | 32-30 | GTD300/AW25 |
| 1400 | 795/1448 | 380/460 | 1540/1483 | 1460 | 300 | 1675 | 1520 | 20 | 36-30 | 530 | 1675 | 1520 | 30 | 36-30 | GTD350/AW28 |
| 1600 | 795/1448 | 380/460 | 1605/1540 | 1250 | 300 | 1790 | 1730 | 24 | 40-30 | 600 | 1790 | 1730 | 34 | 40-30 | GTD350/AW28 |
| 1800 | 1880 | 545 | 1640 | 1520 | 300 | 1990 | 1930 | 24 | 44-30 | 670 | 1990 | 1930 | 36 | 44-30 | AW35 |
| 2000 | 1880 | 545 | 1740 | 1520 | 300 | 2190 | 2130 | 24 | 48-30 | 760 | 2190 | 2130 | 38 | 48-30 | AW35 |
