Electric Ventilation Butterfly Valve

Electric Ventilation Butterfly Valve
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The electric butterfly valve is mainly used in the dusty cold air or hot air gas pipelines for ventilation, environmental protection projects in metallurgy, chemical industry, building materials, power stations, glass and other industries, and is used as a gas medium to regulate flow or cut off devices.

Electric Ventilation Butterfly Valve Features:

  • It is designed and manufactured with a new type of structure welded with a midline plate and a short structure steel plate. It has a compact structure, lightweight, large circulation, avoids the influence of high-temperature expansion, and is easy to operate.
  • Long service life, can be installed in multiple stations, not affected by the media flow

Electric ventilation butterfly valve is a kind of non-sealed butterfly valve. It is widely used in pipelines with medium temperature ≤300°C nominal pressure 0.1Mpa for building materials, metallurgy, mining, electricity and other production processes to connect, open and close or adjust the amount of medium.

The electric ventilation butterfly valve is processed into a seal ring with the same material as the valve body and is electrically or pneumatically driven. Its applicable temperature depends on the valve body selection, nominal pressure ≤ 0.6MPa, generally suitable for industrial, metallurgical, environmental protection and other pipelines for ventilation regulation media flow use. Its main features are:
  • The design is novel, reasonable, unique structure, light weight, rapid opening and closing.
  • small operating torque, easy operation, effort, and dexterity.
  • The use of adapted materials to meet the low, medium and high temperature of different media and corrosive media.
  • Gear type double piston, large output torque, small size.
  • The use of aluminum alloy cylinder material, light weight, beautiful appearance.
  • Manual operation mechanism can be installed at the top and bottom.
  • Rack-type connection can adjust the opening angle, rated flow.
  • Actuators can provide feedback indications and various accessories for automatic operation.
  • IS05211 standard connection provides convenience for installation and replacement of products.
  • The two-point adjusting screw allows the standard product to have an adjustable range of ±4° at 0° and 90°. Ensure synchronization accuracy with the valve.

The electric ventilation butterfly valve is a kind of non-sealed butterfly valve, which is suitable for pipelines with building medium, metallurgy, mining and power production medium temperature ≤300°C nominal pressure of 0.1Mpa, for connecting, opening and closing or adjusting the amount of medium. The electric ventilation butterfly valve is mainly used in the dusty cold air or hot air gas pipelines of ventilation, environmental protection projects in the industries of gold, chemical, building materials, power stations, and glass, etc., and is used as a gas medium to regulate flow or cut off devices. The electric ventilation butterfly valve is designed and manufactured using a new type of structure in which the midline type disc plate is welded to the short structure steel plate.

Function Of A Butterfly Valve

The butterfly valve regulates the flow by starting, slowing down or stopping the medium. The disc opens and closes at a low torque of 90 degrees for any compatible application. Butterfly valves are generally more popular than other types of valves due to their low cost and light weight.
For some processes, extreme temperature and corrosion are factors that are easy to damage the electric butterfly valve seal. Butterfly valves in Senotay, one of dust filter manufacturers, can withstand extreme cold or heat, like high temperature dust collector bags. This means that the seal maintains its integrity, which is essential for high-risk applications such as energy production and oil processing (because a leak may threaten public safety or the environment).

How To Install Butterfly Valve?

The ventilation butterfly valve can be installed in any direction, but it is better to install it vertically, especially for large-size valves, so as to reduce the load on the shaft caused by the actuator or gearbox trying to pull apart.
Before installation, confirm the materials of butterfly valve, valve seat and disc. Ensure that there are no defects caused by storage or transportation. Verify the pressure rating and application requirements of the valve.
When installed directly on pumps or other valves, make sure there is space for dust collector pipe between them so that the butterfly valve disc can be opened.
Complete all welding work before installing the electric butterfly valve and ensure that the flange has been cooled to ambient temperature before installing the butterfly valve.
Clean the flange surface that will be in contact with the butterfly valve to ensure that it is free of rust and sundries. If necessary, wash with water or mild detergent.
Ensure that the flange is not warped or the relationship between the butterfly valve and the flange is not misaligned.  Support the valve as necessary to reduce the load on the piping components.
Install the spacing bolts, be careful not to damage the electric butterfly valve seat, and adjust the distance between the faces of the two flanges so that there is space when the pipeline is opened (there is enough space to disassemble the valve or replace the pulse valve for maintenance).
Before tightening the bolts, operate the valve to ensure that it does not get stuck on the pipe or flange.Tighten the bolts one by one, so as to make the pressure uniform and form a seal between the valve and the flange.

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