NQ series manual and electric wear-resistant and corrosion-resistant ball valves are wear-resistant, corrosive, easy to start, and have self-cleaning function. They are suitable for pipeline systems conveying slurry or impurity liquids.
Application Specification for wear resistant ball valve:
1. The design and manufacture shall comply with the provisions of GB 12237-89.
2. The structural length shall comply with the provisions of jb1686-75 or gb12221-89 and user requirements.
3. Flange connection size and sealing type shall comply with gb9113.3 - gb9113.11-88.
4. The test and inspection of valves shall be in accordance with ZBJ 16006-90.
Specifications:
size(mm) | |||||||||||
Pressure (PN) | Drift diameter (DN) | D | D₁ | D₂ | D₃ | f | f₁ | b | z-d | L | H |
1.6 | 150 | 285 | 240 | 211 | / | 3 | / | 24 | 8-ɸ22 | 500 | 670 |
200 | 340 | 295 | 266 | / | 3 | / | 24 | 12-ɸ22 | 560 | 747 | |
250 | 405 | 355 | 319 | / | 3 | / | 26 | 12-ɸ26 | 620 | 934 | |
300 | 460 | 410 | 270 | / | 4 | / | 28 | 12-ɸ26 | 690 | 1004 | |
350 | 520 | 470 | 429 | / | 4 | / | 30 | 16-ɸ26 | 760 | 1103 | |
400 | 580 | 525 | 480 | / | 4 | / | 32 | 16-ɸ30 | 820 | 1212 | |
450 | 640 | 585 | 548 | / | 4 | / | 34 | 20-ɸ30 | 900 | 1300 | |
500 | 715 | 650 | 609 | / | 4 | / | 36 | 20-ɸ33 | 1000 | 1409 | |
2.5 | 150 | 300 | 250 | 211 | / | 3 | / | 28 | 8-ɸ26 | 500 | 666 |
200 | 360 | 310 | 274 | / | 3 | / | 30 | 12-ɸ26 | 560 | 775 | |
250 | 425 | 370 | 330 | / | 3 | / | 32 | 12-ɸ30 | 620 | 930 | |
300 | 485 | 430 | 389 | / | 4 | / | 34 | 16-ɸ30 | 690 | 1013 | |
350 | 555 | 490 | 448 | / | 4 | / | 38 | 16-ɸ33 | 760 | 1147 | |
400 | 620 | 550 | 503 | / | 4 | / | 40 | 16-ɸ36 | 820 | 1382 | |
450 | 670 | 600 | 548 | / | 4 | / | 42 | 20-ɸ36 | 900 | 1500 | |
500 | 730 | 660 | 609 | / | 4 | / | 44 | 20-ɸ36 | 1000 | 1600 | |
4.0 | 150 | 300 | 250 | 211 | 204 | 3 | 4.5 | 30 | 8-ɸ26 | 500 | 666 |
200 | 375 | 320 | 284 | 260 | 3 | 4.5 | 34 | 12-ɸ30 | 560 | 775 | |
250 | 450 | 385 | 345 | 313 | 3 | 4.5 | 38 | 12-ɸ33 | 620 | 930 | |
300 | 515 | 450 | 409 | 364 | 4 | 4.5 | 42 | 16-ɸ33 | 690 | 1013 | |
350 | 580 | 510 | 465 | 422 | 4 | 5 | 46 | 16-ɸ36 | 760 | 1147 | |
400 | 660 | 585 | 535 | 474 | 4 | 5 | 50 | 16-ɸ39 | 820 | 1382 | |
450 | 685 | 610 | 560 | 524 | 4 | 5 | 50 | 20-ɸ39 | 900 | 1500 | |
500 | 755 | 670 | 615 | 576 | 4 | 5 | 52 | 20-ɸ42 | 1000 | 1600 | |
6.4 | 150 | 340 | 180 | 240 | 204 | 3 | 4.5 | 38 | 8-ɸ34 | 500 | 708 |
200 | 405 | 345 | 300 | 260 | 3 | 4.5 | 44 | 12-ɸ34 | 560 | 888 | |
250 | 470 | 400 | 352 | 313 | 3 | 4.5 | 48 | 12-ɸ41 | 620 | 1010 | |
300 | 530 | 460 | 412 | 364 | 4 | 4.5 | 54 | 16-ɸ41 | 690 | 1075 |