Product features and advantages:
1. valve flap for swing type, flow channel through, horizontal pipeline vertical pipe can be installed.
2. Rocker pin shaft by loading type structure, to reduce the external leakage faults.
3. Valve cover bolt connection, high pressure level is greater than class 600Lb, flange pressure from the sealing structure, makes products
4. Volume light weight, reliable sealing. Standard (fire, anti-static)
Application:
Suitable for oil, chemical, chemical fertilizer, chemical fertilizer, power industry and other operating conditions of the pipeline, cut off or switch on the pipe
| pressure | NPS（in） | DN（mm） | L | D | D1 | D2 | b | Z - Φd | H |
| Class150 | 2" | 50 | 203 | 157 | 120.7 | 92 | 19.5 | 4 - Φ19 | 161 |
| 2 1/2" | 65 | 216 | 178 | 139.7 | 105 | 22.5 | 4 - Φ19 | 180 | |
| 3" | 80 | 241 | 190.5 | 152.4 | 127 | 24 | 4 - Φ19 | 190 | |
| 4" | 100 | 292 | 229 | 190.5 | 157.2 | 24 | 8 - Φ19 | 220 | |
| 6" | 150 | 356 | 279 | 241.5 | 216 | 25.5 | 8 - Φ22.5 | 257 | |
| 8" | 200 | 495 | 343 | 298.5 | 270 | 29 | 8 - Φ22.5 | 292 | |
| 10" | 250 | 622 | 406 | 362 | 324 | 30.5 | 12 - Φ25 | 350 | |
| 12" | 300 | 698 | 483 | 432 | 381 | 32 | 12 - Φ25 | 398 | |
| 14" | 350 | 787 | 533 | 476.8 | 413 | 35 | 12 - Φ29 | 445 | |
| 16" | 400 | 864 | 597 | 539.8 | 470 | 37 | 16 - Φ29 | 490 | |
| 18" | 450 | 978 | 635 | 577.8 | 533 | 40 | 16 - Φ32 | 520 | |
| 20" | 500 | 978 | 698 | 635 | 584 | 43 | 20 - Φ32 | 546 | |
| 24" | 600 | 1295 | 813 | 749.3 | 692 | 48 | 20 - Φ35 | 880 | |
| Class300 | 2" | 50 | 267 | 165 | 127 | 92 | 22.5 | 8 - Φ19 | 179.5 |
| 2 1/2" | 65 | 292 | 190 | 150 | 105 | 25 | 8 - Φ22 | 190 | |
| 3" | 80 | 318 | 210 | 168 | 127 | 29 | 8 - Φ22.5 | 212.4 | |
| 4" | 100 | 356 | 254 | 200 | 157 | 32 | 8 - Φ22.5 | 246 | |
| 6" | 150 | 445 | 317.5 | 269.7 | 216 | 37 | 12 - Φ22.5 | 292 | |
| 8" | 200 | 533 | 381 | 330 | 270 | 41.5 | 12 - Φ25.5 | 328 | |
| 10" | 250 | 622 | 444.5 | 387 | 324 | 48 | 16 - Φ28.5 | 378.6 | |
| 12" | 300 | 711 | 521 | 451 | 381 | 51 | 16 - Φ32 | 420 | |
| 14" | 350 | 838 | 584 | 514 | 54 | 54 | 20 - Φ32 | 470 | |
| 16" | 400 | 864 | 648 | 572 | 57 | 57 | 20 - Φ35 | 530 | |
| 18" | 450 | 978 | 711 | 629 | 60 | 60 | 24 - Φ35 | 584 | |
| 20" | 500 | 1016 | 775 | 686 | 64 | 64 | 24 - Φ35 | 610 | |
| 24" | 600 | 1346 | 914 | 813 | 70 | 70 | 24 - Φ41 | 860 | |
| Class600 | 2" | 50 | 292 | 165 | 127 | 92 | 25 | 8 - Φ19 | 203 |
| 2 1/2" | 65 | 330 | 190 | 150 | 105 | 29 | 8 - Φ22 | 229 | |
| 3" | 80 | 356 | 210 | 168 | 127 | 32 | 8 - Φ22 | 235 | |
| 4" | 100 | 432 | 273 | 216 | 157 | 38 | 8 - Φ25 | 286 | |
| 6" | 150 | 559 | 356 | 292 | 216 | 48 | 8 - Φ29 | 330 | |
| 8" | 200 | 660 | 419 | 349 | 270 | 56 | 12 - Φ29 | 381 | |
| 10" | 250 | 787 | 508 | 432 | 324 | 64 | 12 - Φ32 | 457 | |
| 12" | 300 | 838 | 559 | 489 | 381 | 67 | 16 - Φ35 | 584 | |
| 14" | 350 | 889 | 603 | 527 | 413 | 70 | 20 - Φ38 | 635 | |
| 16" | 400 | 991 | 686 | 603 | 470 | 76 | 20 - Φ41 | 684 |
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