Electric ventilation butterfly valve is a non-sealed butterfly valve, the valve body is made of structural steel plate welding, light weight, small flow resistance, circulation. Mainly used in the chemical, building materials, power station, glass and other industries in the ventilation, environmental protection projects containing dust cold air or hot air gas pipeline, as a gas medium to regulate the flow or cut-off device.
Product Main Dimensions
Actuator selection: QH, QT
Power supply voltage: DC24V, AC110V, AC220V, AC380V
Working temperature: Normal temperature type: -20°C~80°C ( nitrile rubber O ring )
High temperature type: -20°C~160°C ( fluorine rubber O ring )
Control mode: switch type (electric switch, switch), regulating type, field control integration intelligent type, explosion-proof type
Valve body form: steel plate welding valve body
Nominal diameter: DN50~2000mm
Connection form: flange type, clamp type
Valve cover form: one-piece
Cover type: Cover pressing type
Sealing filler: V-type polytetrafluoroethylene filler, flexible graphite filler
Product Main Dimensions
| Electric Ventilating Butterfly Valve Main external and connection size | |||||||
| DN | B | D | D1 | L | L1 | b | n-d |
| 300 | 170 | 440 | 395 | 600 | 220 | 16 | 12-22 |
| 350 | 170 | 490 | 445 | 655 | 250 | 16 | 12-22 |
| 400 | 190 | 540 | 495 | 705 | 270 | 16 | 16-22 |
| 500 | 190 | 645 | 600 | 805 | 325 | 20 | 20-22 |
| 600 | 210 | 755 | 705 | 1055 | 510 | 20 | 20-26 |
| 700 | 210 | 860 | 810 | 1155 | 560 | 20 | 24-26 |
| 800 | 210 | 975 | 920 | 1255 | 618 | 20 | 24-30 |
| 900 | 250 | 1075 | 1020 | 1355 | 668 | 20 | 24-30 |
| 1000 | 250 | 1175 | 1120 | 1455 | 718 | 20 | 28-30 |
| 1200 | 250 | 1375 | 1320 | 1655 | 818 | 20 | 32-30 |
| 1300 | 250 | 1475 | 1420 | 1755 | 880 | 20 | 32-30 |
| 1400 | 300 | 1575 | 1520 | 1855 | 918 | 20 | 36-30 |
| 1500 | 300 | 1690 | 1630 | 1960 | 1000 | 24 | 36-30 |
| 1600 | 300 | 1790 | 1730 | 2170 | 1000 | 24 | 40-30 |
