D643气动蝶阀
| 采用标准： 设计制造:API609、MSS SP-67、MSS SP-68 检验和试验：API598 法兰连接：ASME B16.5(NPS≤24)、ASME B16.47 B系列 对焊端：ASME B16.25 结构长度：API609 温压等级：ASME B16.34 |  |
特点及用途：
三偏心金属密封蝶阀系列是我公司主要产品，大量使用在冶金、轻工、电力、石油化工、煤气水道等领域。
三偏心金属密封蝶阀的密封原理：
三偏心金属密封蝶阀系列是我公司主要产品，大量使用在冶金、轻工、电力、石油化工、煤气水道等领域。
三偏心金属密封蝶阀的密封原理：
三偏心蝶阀具有双向无气泡紧密壮关闭性能。这种几何形状保证阀瓣密封只是在关闭位置时才与阀体阀座接触，因此不会产生摩擦或磨损，并且产生一种扭矩使得弹性密封具有足够的“焊接”性能，确保密封接触的均匀一致性。
三重偏心几何形状：
偏心1 阀轴位于阀座轴后面，使得密封能够紧密环绕接触整个阀座。
偏心2 阀轴中心线偏离管道和阀门中心线，这就免受阀门开启和关闭的干扰。
偏心3 阀座锥体轴偏离阀轴中心线，这样就可以在关闭和开启过程中消除摩擦作用，并且实现环绕整个阀座的均匀一致的压缩密封效果。
主要连接尺寸：
| Class | Size | Dimensions(mm) | B | |||||||||
| NPS | DN | L | D | G | f | K | Z-φd | C | A | |||
| RF | BW | |||||||||||
| 150LB | 2 | 50 | 108 | 150 | 152 | 91.9 | 1.6 | 120.7 | 4-19.1 | 15.8 | 63 | 按客户要求 |
| 2½ | 65 | 112 | 170 | 178 | 104.6 | 1.6 | 139.7 | 4-19.1 | 17.5 | 75 | ||
| 3 | 80 | 114 | 180 | 191 | 127 | 1.6 | 152.4 | 4-19.1 | 19.1 | 91 | ||
| 4 | 100 | 127 | 190 | 229 | 157.2 | 1.6 | 190.5 | 8-19.1 | 23.9 | 117 | ||
| 5 | 125 | 140 | 200 | 254 | 185.7 | 1.6 | 215.9 | 8-22.2 | 23.9 | 144 | ||
| 6 | 150 | 140 | 210 | 279 | 215.9 | 1.6 | 241.3 | 8-22.2 | 25.4 | 172 | ||
| 8 | 200 | 152 | 230 | 343 | 269.7 | 1.6 | 298.5 | 8-22.2 | 28.4 | 223 | ||
| 10 | 250 | 165/203 | 250 | 406 | 323.9 | 1.6 | 362 | 12-25.4 | 30.2 | 278 | ||
| 12 | 300 | 178/203 | 270 | 483 | 381 | 1.6 | 431.8 | 12-25.4 | 31.8 | 329 | ||
| 14 | 350 | 190 | 290 | 533 | 412.8 | 1.6 | 476.2 | 12-28.6 | 35.1 | 362 | ||
| 16 | 400 | 216 | 310 | 597 | 469.9 | 1.6 | 539.8 | 16-28.6 | 36.6 | 413 | ||
| 18 | 450 | 222 | 330 | 635 | 533.4 | 1.6 | 577.9 | 16-31.8 | 39.6 | 464 | ||
| 20 | 500 | 229 | 350 | 699 | 584.2 | 1.6 | 635 | 20-31.8 | 42.9 | 516 | ||
| 24 | 600 | 267 | 390 | 813 | 692.2 | 1.6 | 749.3 | 20-34.9 | 47.8 | 619 | ||
| 26 | 650 | 292 | 410 | 786 | 711.2 | 1.6 | 744.5 | 36-22.2 | 41.1 | 670 | ||
| 28 | 700 | 292 | 430 | 837 | 762 | 1.6 | 795.3 | 40-22.2 | 44.5 | 721 | ||
| 30 | 750 | 318 | 450 | 887 | 812.8 | 1.6 | 846.1 | 44-22.2 | 44.5 | 772 | ||
| 32 | 800 | 318 | 470 | 941 | 863.6 | 1.6 | 900.2 | 48-22.2 | 46 | 825 | ||
| 36 | 900 | 330 | 510 | 1057 | 971.6 | 1.6 | 1009.7 | 44-25.4 | 52.3 | 927 | ||
| 38 | 950 | 410 | 530 | 1124 | 1022.4 | 1.6 | 1069.8 | 40-28.6 | 53.8 | 978 | ||
| 40 | 1000 | 410 | 550 | 1175 | 1079.5 | 1.6 | 1120.6 | 44-28.6 | 55.6 | 1029 | ||
| 42 | 1050 | 410 | 570 | 1226 | 1130.3 | 1.6 | 1171.4 | 48-28.6 | 58.7 | 1080 | ||
| 44 | 1100 | 444 | 570 | 1276 | 1181.1 | 1.6 | 1222.2 | 52-28.6 | 60.5 | 1130 | ||
| 48 | 1200 | 470 | 630 | 1392 | 1289.1 | 1.6 | 1335 | 44-31.8 | 65 | 1232 | ||
| 52 | 1300 | 470 | 630 | 1494 | 1390.7 | 1.6 | 1436.6 | 52-31.8 | 69.9 | 1334 | ||
| 56 | 1400 | 530 | 710 | 1600 | 1492.3 | 1.6 | 1543.1 | 60-31.8 | 73.2 | 1436 | ||
| 60 | 1500 | 530 | 710 | 1726 | 1600.2 | 1.6 | 1662.2 | 52-34.9 | 76.2 | 1538 | ||
| Class | Size | Dimensions(mm) | B | |||||||||
| NPS | DN | L | D | G | f | K | Z-φd | C | A | |||
| RF | BW | |||||||||||
| 300LB | 2 | 50 | 108 | 150 | 165 | 91.9 | 1.6 | 127 | 8-19.1 | 22.4 | 63 | 按客户要求 |
| 2½ | 65 | 112 | 170 | 191 | 104.6 | 1.6 | 149.2 | 8-22.2 | 25.4 | 75 | ||
| 3 | 80 | 180 | 180 | 210 | 127 | 1.6 | 168.3 | 8-22.2 | 28.4 | 91 | ||
| 4 | 100 | 190 | 19 | 254 | 157.2 | 1.6 | 200.2 | 8-22.2 | 31.8 | 117 | ||
| 5 | 125 | 200 | 200 | 279 | 185.7 | 1.6 | 235 | 8-22.2 | 35.1 | 144 | ||
| 6 | 150 | 210 | 210 | 318 | 215.9 | 1.6 | 269.8 | 12-22.2 | 36.6 | 172 | ||
| 8 | 200 | 230 | 230 | 381 | 269.7 | 1.6 | 330.2 | 12-25.4 | 41.1 | 223 | ||
| 10 | 250 | 250 | 250 | 445 | 323.9 | 1.6 | 387.4 | 16-28.6 | 47.8 | 278 | ||
| 12 | 300 | 270 | 270 | 521 | 381 | 1.6 | 450.9 | 16-31.8 | 50.8 | 329 | ||
| 14 | 350 | 290 | 290 | 584 | 412.8 | 1.6 | 514.4 | 20-31.8 | 53.8 | 362 | ||
| 16 | 400 | 310 | 310 | 648 | 469.9 | 1.6 | 571.5 | 20-34.9 | 57.2 | 413 | ||
| 18 | 450 | 330 | 330 | 711 | 533.4 | 1.6 | 628.7 | 24-34.9 | 60.5 | 464 | ||
| 20 | 500 | 350 | 350 | 775 | 584.2 | 1.6 | 685.8 | 24-34.9 | 63.5 | 516 | ||
| 24 | 600 | 390 | 390 | 914 | 692.2 | 1.6 | 812.8 | 24-41.3 | 69.9 | 619 | ||
| 26 | 650 | 410 | 410 | 867 | 736.6 | 1.6 | 803.1 | 32-34.9 | 88.9 | 670 | ||
| 28 | 700 | 430 | 430 | 921 | 784.4 | 1.6 | 857.3 | 36-34.9 | 88.9 | 721 | ||
| 30 | 750 | 450 | 450 | 991 | 844.6 | 1.6 | 920.8 | 36-38.1 | 93.7 | 772 | ||
| 32 | 800 | 470 | 470 | 1054 | 901.7 | 1.6 | 977.9 | 32-41.3 | 103.1 | 825 | ||
| 36 | 900 | 510 | 510 | 1171 | 1009.7 | 1.6 | 1089.2 | 32-44.5 | 103.1 | 927 | ||
| 38 | 950 | 530 | 530 | 1222 | 1060.5 | 1.6 | 1140 | 36-44.5 | 111.3 | 978 | ||
| 40 | 1000 | 550 | 550 | 1273 | 1114.6 | 1.6 | 1190.8 | 40-44.5 | 115.8 | 1029 | ||
| 42 | 1050 | 570 | 570 | 1334 | 1168.4 | 1.6 | 1244.6 | 36-47.6 | 119.1 | 1080 | ||
| 44 | 1100 | 570 | 570 | 1384 | 1219.2 | 1.6 | 1295.4 | 40-47.6 | 127 | 1130 | ||
| 48 | 1200 | 630 | 630 | 1511 | 1327.2 | 1.6 | 1416.1 | 40-50.8 | 128.5 | 1232 | ||
| Class | Size | Dimensions(mm) | B | |||||||||
| NPS | DN | L | D | G | f | K | Z-φd | C | A | |||
| RF | BW | |||||||||||
| 600LB | 50 | 150 | 150 | 165 | 91.9 | 6.4 | 127 | 8-19.1 | 25.4 | 63 | 按客户要求 | |
| 2½ | 65 | 170 | 170 | 191 | 104.6 | 6.4 | 149.2 | 8-22.2 | 28.4 | 75 | ||
| 3 | 80 | 180 | 180 | 210 | 127 | 6.4 | 168.3 | 8-22.2 | 31.8 | 91 | ||
| 4 | 100 | 190 | 190 | 273 | 157.2 | 6.4 | 215.9 | 8-25.4 | 38.1 | 117 | ||
| 5 | 125 | 200 | 200 | 330 | 185.7 | 6.4 | 266.8 | 8-28.6 | 44.5 | 144 | ||
| 6 | 150 | 210 | 210 | 356 | 215.9 | 6.4 | 292.1 | 12-28.6 | 47.8 | 172 | ||
| 8 | 200 | 230 | 230 | 419 | 269.7 | 6.4 | 349.2 | 12-31.8 | 55.6 | 223 | ||
| 10 | 250 | 250 | 250 | 508 | 323.9 | 6.4 | 431.8 | 16-34.9 | 63.5 | 278 | ||
| 12 | 300 | 270 | 270 | 559 | 381 | 6.4 | 489 | 20-34.9 | 66.5 | 329 | ||
| 14 | 350 | 290 | 290 | 603 | 412.8 | 6.4 | 527.1 | 20-38.1 | 69.9 | 362 | ||
| 16 | 400 | 310 | 310 | 686 | 469.9 | 6.4 | 603.2 | 20-41.3 | 76.2 | 413 | ||
| 18 | 450 | 330 | 330 | 743 | 533.4 | 6.4 | 654.1 | 20-44.5 | 82.6 | 464 | ||
| 20 | 500 | 350 | 350 | 813 | 584.2 | 6.4 | 723.9 | 24-44.5 | 88.9 | 516 | ||
| 24 | 600 | 390 | 390 | 940 | 692.2 | 6.4 | 838.2 | 24-50.8 | 101.6 | 619 | ||
