Large Diameter Flange Ventilation Butterfly Valve
Large diameter flange ventilation butterfly valve
Large diameter flange ventilation butterfly valve product introduction:
The ventilation butterfly valve is made of the same material as the valve body and is processed into a sealing ring. Its applicable temperature depends on the material selection of the valve body. The nominal pressure is ≤1.0MPa. It is generally suitable for ventilation and regulating medium flow in industrial, metallurgical, environmental protection and other pipelines.
Application scope of large diameter flange ventilation butterfly valve:
The applicable temperature of the ventilation butterfly valve depends on the material selection of the valve body. The nominal pressure is ≤1.0MPa. It is generally suitable for dusty cold air or hot air gas pipelines in ventilation and environmental protection projects in industry, metallurgy, environmental protection, chemical industry, building materials, power stations, glass and other industries. , as a pipeline control device for regulating flow or cutting off gas media. Ventilation butterfly valves should generally be installed horizontally in pipelines.
Structural features of large diameter flange ventilation butterfly valve:
1. The ventilation butterfly valve has a novel and reasonable design, unique structure, light weight and rapid opening and closing.
2. The butterfly valve has small operating torque, easy operation, labor saving and dexterity.
3. Use suitable materials to meet different medium temperatures of low, medium and high, as well as corrosive media, etc.
4. There are no connecting rods, bolts, etc. inside, which ensures reliable operation, long service life, and is not affected by the flow direction of the medium.


| Nominal diameter | Structure length (standard value) |
Dimensions (Reference) |
Connection dimensions (standard values) | reference weight (kg) |
|||||||||
| 0.05MPa,0.25MPa | O.6MPa | ||||||||||||
| mm | inch | L | H | H1 | D | D1 | D2 | Z-d | D | D1 | D2 | Z-d | |
| 100 | 4 | 120 | 105 | 219 | 210 | 170 | 144 | 4-18 | 210 | 170 | 144 | 4-18 | 20 |
| 125 | 5 | 120 | 120 | 234 | 240 | 200 | 174 | 8-18 | 240 | 200 | 174 | 8-18 | 25 |
| 150 | 6 | 120 | 132 | 247 | 265 | 225 | 199 | 8-18 | 265 | 225 | 199 | 8-18 | 29 |
| 200 | 8 | 140 | 160 | 403 | 320 | 280 | 254 | 8-18 | 320 | 280 | 254 | 8-18 | 47 |
| 250 | 10 | 140 | 187 | 433 | 375 | 335 | 309 | 12-18 | 375 | 335 | 309 | 12-18 | 67 |
| 300 | 12 | 170 | 220 | 465 | 440 | 395 | 363 | 12-22 | 440 | 395 | 363 | 12-22 | 78 |
| 350 | 14 | 170 | 245 | 539 | 490 | 445 | 413 | 12-22 | 490 | 445 | 413 | 12-22 | 96 |
| 400 | 16 | 190 | 270 | 543 | 540 | 495 | 463 | 16-22 | 540 | 495 | 463 | 16-22 | 130 |
| 450 | 18 | 190 | 297 | 571 | 595 | 550 | 518 | 16-22 | 595 | 550 | 518 | 16-22 | 142 |
| 500 | 20 | 190 | 322 | 644 | 645 | 600 | 568 | 20-22 | 645 | 600 | 568 | 20-22 | 191 |
| 600 | 24 | 210 | 377 | 701 | 755 | 705 | 667 | 20-26 | 755 | 705 | 667 | 20-26 | 230 |
| 700 | 28 | 210 | 430 | 753 | 860 | 810 | 772 | 24-26 | 860 | 810 | 772 | 24-26 | 250 |
| 800 | 32 | 210 | 487 | 807 | 975 | 920 | 878 | 24-30 | 975 | 920 | 878 | 24-30 | 320 |
| 900 | 36 | 250 | 537 | 973 | 1075 | 1020 | 978 | 24-30 | 1075 | 1020 | 978 | 24-30 | 410 |
| 1000 | 40 | 250 | 587 | 1023 | 1175 | 1120 | 1078 | 28-30 | 1175 | 1120 | 1078 | 28-30 | 510 |
| 1200 | 48 | 250 | 687 | 1153 | 1375 | 1320 | 1280 | 32-30 | 1405 | 1340 | 1295 | 32-33 | 720 |
| 1400 | 56 | 300 | 760 | 1810 | 1575 | 1520 | 1480 | 36-30 | 1630 | 1560 | 1510 | 36-36 | 1270 |
| 1600 | 64 | 300 | 895 | 1815 | 1790 | 1730 | 1690 | 40-30 | 1830 | 1760 | 1710 | 40-36 | 1730 |
| 1800 | 72 | 300 | 995 | 1920 | 1990 | 1930 | 1890 | 44-30 | 2045 | 1970 | 1918 | 44-39 | 2750 |
| 2000 | 80 | 300 | 1095 | 2025 | 2190 | 2130 | 2090 | 48-30 | 2265 | 2180 | 2125 | 48-42 | 3050 |




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