Square ventilation butterfly valve is a type of pneumatic ventilation butterfly valve. The flange of the pneumatic ventilation butterfly valve is square, and it is generally ordered according to the inner diameter.

The square ventilation butterfly valve is manufactured by welding steel plates, with short structural dimensions, light weight, easy installation, low flow resistance, large flow capacity, avoiding the influence of high temperature expansion, and easy operation. The expansion gap between the butterfly plate and the valve body is large, which can prevent jamming caused by thermal expansion and contraction. Rectangular pneumatic ventilation butterfly valve is a non sealed butterfly valve widely used in industrial pipelines such as metallurgy, chemical engineering, power, building materials, mining, etc., for controlling or regulating the medium gas.

Characteristics of square ventilation butterfly valve:

1. The square ventilation butterfly valve adopts a double eccentric structure, which has a sealing function that becomes tighter as it is closed, and the sealing performance is reliable.

2. The sealing auxiliary material is paired with stainless steel and nitrile oil resistant rubber, which has a long service life.

3. The rubber sealing ring can be located on the valve body or on the butterfly plate, and can be suitable for different characteristics of media for users to choose from.

4. The butterfly plate adopts a frame structure, with high strength, large overcurrent area, and low flow resistance.

5. The overall baking paint of the square ventilation butterfly valve can prevent rust and can be used in different media as long as the sealing material of the valve seat is replaced.

6. The square ventilation butterfly valve has a bidirectional sealing function, which is not controlled by the flow direction of the medium or the spatial position during installation, and can be installed in any direction.

7. Square ventilation butterfly valve structure, flexible operation, labor-saving, and convenient.

8. No connecting rods, bolts, etc. inside, reliable operation, long service life. It can be installed in multiple workstations without being affected by the flow direction of the medium.

9. The square ventilation butterfly valve is specifically designed for ventilation, environmental protection, and dust removal pipelines. It has the characteristics of short structure, light weight, simple structure, low flow resistance, flexible opening and closing, and convenient maintenance.

10. Square ventilation butterfly valves are widely used in ventilation, dust removal, environmental protection, heating and ventilation gas pipelines in power plants, metallurgy, and mines for regulating and controlling medium flow. This lightweight butterfly valve comes in circular butterfly valve, rectangular single plate, and rectangular multi plate butterfly valve forms. And other lightweight ventilation butterfly valves can be made according to user requirements.