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Classification and Working Principle of Gas Butterfly Valve


Gas butterfly valve is suitable for coal gasification, coal chemical industry, metallurgy, ceramics and other industries in the field of gas transportation, as a gas medium to adjust the flow or cut off device. It is a good solution to the problems of scaling, blockage, shaft holding and lax switching in gas transportation. The use cost of the user is reduced, and the safety and environmental protection effect are improved.

Gas butterfly valve according to the structure is divided into offset, vertical, inclined plate and lever type. Gas butterfly valve is divided into flange type and wafer type according to the connection form, and is divided into manual type, worm type, electric, pneumatic and hydraulic type according to the transmission mode.

What is the classification of gas station valves? What are the classification methods?

Gas butterfly valve is divided into the following forms according to the common types:

1 According to the connection method: flange butterfly valve, wafer butterfly valve and welding butterfly valve and lug butterfly valve.

2 Gas station valves can be divided into steel plate valves, cast iron valves, cast steel valves, forged steel valves and stainless steel valves according to the material of the valve.

3 according to the use of pressure points: low pressure, medium pressure, high pressure different pressure system of the valve.

4 gas butterfly valve according to the structure of the form: central sealing butterfly valve, single eccentric sealing butterfly valve, double eccentric sealing butterfly valve, and three eccentric sealing butterfly valve.

5 gas butterfly valves are divided into butterfly valves with high temperature T <450 ℃, butterfly valves with medium temperature butterfly valves with 120 ℃

Working principle of gas butterfly valve

Gas butterfly valve is a kind of valve that uses circular butterfly plate as opening and closing parts and rotates with the valve stem to open, close and adjust the fluid channel. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline.

In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0 ° and 90 °. When the valve is rotated to 90 °, the valve is fully open. Change the deflection angle of the disc plate, you can control the flow of the medium.

The gas butterfly valves mainly produced by Henan Shangvalve Valve Co., Ltd. are divided into hard seal butterfly valves, multi-level butterfly valves, wafer butterfly valves, flange butterfly valves, etc. More information about 13703820603 or 15551530000