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Brief Introduction
D641W pneumatic ventilation butterfly valve is suitable for two-position cut-off occasions. The connection between the valve and the actuator adopts a branch connection method. The expansion gap between the pneumatic ventilation butterfly valve butterfly plate and the valve body is large, which can effectively prevent the jamming caused by thermal expansion and contraction.
The ventilation butterfly valve is designed and manufactured with a new structural form of welding the centerline butterfly plate and the short structural steel plate. It is welded with high-quality wear-resistant materials. It has a compact structure, light weight, easy installation, small flow resistance, large flow volume, avoids the influence of high temperature expansion, and is easy to operate. There is no connecting rod, bolt, etc. inside, reliable operation, long service life, especially suitable for low pressure difference, large diameter, and large flow occasions. It is used in combination with various actuators to form valves with different performances. It can be installed in multiple positions and is not affected by the flow direction of the medium. The ventilation butterfly valve is a non-closed butterfly valve, which is widely used in ventilation and dust removal systems. It is used to connect, open and close or adjust the medium volume on pipelines with dust-containing gases, gas pipelines, ventilation purification devices, flue gas pipelines, etc., with a medium temperature of ≤300ºC and a nominal pressure of -0.1PMa.
Technical Parameter
Pneumatic Actuator Optional Features | Double acting, single acting |
Pneumatic actuator optional models | AT series, AW series |
Solenoid valve voltage | AC110V,AC220V,AC24V,DC24V |
Air source pressure | 2bar -8bar |
Nominal diameter | DN50mm~DN4000mm |
Nominal pressure | PN0.1MPa |
Applicable temperature | -30-+300ºC |
Connection | Flange |
Valve body material | Carbon steel, stainless steel |
Valve plate material | Carbon steel, stainless steel, etc. |
Valve seat lining | Carbon steel, stainless steel |
Applicable media | Dust-containing flue gas, air, coal gas and dust-containing gas, etc. |
Main Dimension Table
DN (mm) | L | H | 0.05-0.1Mpa | 0.25Mpa | 0.6Mpa | |||||||||
D | D1 | D2 | n-φd | D | D1 | D2 | n-φd | D | D1 | D2 | n-φd | |||
50 | 108 | 70 | 140 | 110 | 88 | 4-Φ14 | 140 | 110 | 88 | 4-Φ14 | 140 | 110 | 88 | 4-Φ14 |
65 | 112 | 80 | 160 | 130 | 108 | 4-Φ14 | 160 | 130 | 108 | 4-Φ14 | 160 | 130 | 108 | 4-Φ14 |
80 | 114 | 95 | 190 | 150 | 124 | 4-φ18 | 190 | 150 | 124 | 4-φ18 | 190 | 150 | 124 | 4-φ19 |
100 | 127 | 105 | 210 | 190 | 144 | 4 φ18 | 210 | 190 | 144 | 4-φ18 | 210 | 190 | 144 | 4-φ19 |
125 | 140 | 120 | 240 | 200 | 174 | 8-φ18 | 240 | 200 | 174 | 8-φ18 | 240 | 200 | 174 | 8-φ19 |
150 | 140 | 132 | 265 | 225 | 199 | 8-φ18 | 265 | 225 | 199 | 8-φ18 | 265 | 225 | 199 | 8-φ19 |
200 | 152 | 160 | 320 | 280 | 254 | 8-φ18 | 320 | 280 | 254 | 8-φ18 | 320 | 280 | 254 | 8-φ19 |
250 | 165 | 187 | 375 | 335 | 309 | 12-Φ18 | 375 | 335 | 309 | 12-φ18 | 375 | 335 | 309 | 12-φ19 |
300 | 180 | 220 | 440 | 395 | 363 | 12-φ22 | 440 | 395 | 363 | 12-φ22 | 440 | 395 | 363 | 12-φ23 |
350 | 180 | 245 | 490 | 445 | 413 | 12-φ22 | 490 | 445 | 413 | 12-φ22 | 490 | 445 | 413 | 12-φ23 |
400 | 200 | 270 | 540 | 495 | 463 | 16-φ22 | 540 | 495 | 463 | 16-φ22 | 540 | 495 | 463 | 16-φ23 |
450 | 200 | 297 | 595 | 550 | 518 | 16-φ22 | 595 | 550 | 518 | 16-φ22 | 595 | 550 | 518 | 16-φ23 |
500 | 220 | 322 | 645 | 600 | 568 | 20-φ22 | 645 | 600 | 568 | 20-φ22 | 645 | 600 | 568 | 20-φ23 |
600 | 220 | 377 | 755 | 705 | 667 | 20-φ26 | 755 | 705 | 667 | 20-φ26 | 755 | 705 | 667 | 20-φ26 |
700 | 240 | 430 | 860 | 810 | 772 | 24-φ26 | 860 | 810 | 772 | 24-φ26 | 860 | 810 | 772 | 24-φ26 |
800 | 240 | 487 | 975 | 920 | 878 | 24-φ30 | 975 | 920 | 878 | 24-φ30 | 975 | 920 | 878 | 24-φ31 |
900 | 260 | 537 | 1075 | 1020 | 978 | 24-φ30 | 1075 | 1020 | 978 | 24-Φ30 | 1075 | 1020 | 978 | 24-φ31 |
1000 | 260 | 587 | 1175 | 1120 | 1078 | 28-φ30 | 1175 | 1120 | 1078 | 28-φ30 | 1175 | 1120 | 1078 | 28-φ31 |
1200 | 280 | 702 | 1375 | 1320 | 1280 | 32-φ30 | 1375 | 1320 | 1280 | 32-Φ30 | 1405 | 1340 | 1295 | 32-φ34 |
1400 | 300 | 782 | 1575 | 1520 | 1480 | 36-φ30 | 1575 | 1520 | 1480 | 36-φ30 | 1630 | 1560 | 1510 | 36-φ37 |
1600 | 320 | 895 | 1790 | 1730 | 1690 | 40-φ30 | 1790 | 1730 | 1690 | 40-O30 | 1830 | 1760 | 1710 | 40-φ37 |
1800 | 340 | 995 | 1990 | 1930 | 1890 | 44-φ30 | 1990 | 1930 | 1890 | 44-φ30 | 2045 | 1970 | 1918 | 44-φ40 |
2000 | 360 | 1095 | 2190 | 2130 | 2090 | 48-φ30 | 2190 | 2130 | 2090 | 48-φ30 | 2265 | 2180 | 2125 | 48-Φ43 |
2200 | 380 | 1200 | 2405 | 2340 | 2295 | 52-φ33 | 2405 | 2340 | 2295 | 52-φ33 | 2475 | 2390 | 2335 | 52-φ43 |
2400 | 400 | 1310 | 2605 | 2540 | 2495 | 56-Φ33 | 2605 | 2540 | 2495 | 56-033 | 2685 | 2600 | 2545 | 56-φ43 |
2600 | 420 | 1420 | 2805 | 2740 | 2695 | 60-φ33 | 2805 | 2740 | 2695 | 60-φ33 | 2905 | 2810 | 2750 | 60-φ49 |
2800 | 440 | 1530 | 3030 | 2960 | 2910 | 64-φ36 | 3030 | 2960 | 2910 | 64-Φ36 | 3115 | 3020 | 2960 | 64-Φ49 |
3000 | 460 | 1640 | 3230 | 3160 | 3110 | 68-φ36 | 3230 | 3160 | 3110 | 68-φ36 | 3315 | 3220 | 3160 | 68-φ49 |
3200 | 480 | 1760 | 3430 | 3360 | 3310 | 72-Φ36 | 3430 | 3360 | 3310 | 72-φ36 | 3525 | 3430 | 3360 | 72-φ49 |
3400 | 500 | 1870 | 3630 | 3560 | 3510 | 76-φ36 | 3630 | 3560 | 3510 | 76-φ36 | 3735 | 3640 | 3560 | 76-φ49 |
3600 | 520 | 1980 | 3840 | 3770 | 3720 | 80-φ36 | 3840 | 3770 | 3720 | 80-φ36 | 3970 | 3860 | 3720 | 80-φ56 |
3800 | 540 | 2120 | 4045 | 3970 | 3920 | 80-φ39 | 4045 | 3970 | 3920 | 80-φ39 | 4180 | 4070 | 3970 | 80-Φ62 |
4000 | 560 | 2230 | 4245 | 4170 | 4120 | 84-φ39 | 4245 | 4170 | 4120 | 84-φ39 | 4380 | 4270 | 4170 | 84-Φ62 |