DN40 (1-1/2 inch) PN16 Wafer Butterfly Valve
Wafer type butterfly valve performance advantages is that its disc is installed in the diameter direction of the pipe. In the cylindrical passage of the butterfly valve body, the disc rotates around the axis, and the rotation angle is between 0° and 90°. When the rotation is 90°, the valve is fully open. The wafer type butterfly valve is generally installed horizontally. The wafer type butterfly valve is composed of only a few parts and characterized by simple structure, small size and light weight. Moreover, it can be quickly opened and closed by rotating 90°, and the operation is simple. In the meantime, the valve has good fluid control characteristics.
When the wafer butterfly valve is in the fully open position, the thickness of the disc is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is small. The valve thus boasts better flow control characteristics. The butterfly valve has two sealing types: an resilient seal and a metal seal. For the former, the sealing ring can be mounted on the valve body or attached to the periphery of the disc.
DN40 (1-1/2 inch) PN16 Wafer Butterfly Valve Image
If a butterfly valve is required for flow control, the main concerns are the correct size and type of valve. The structural principle of the butterfly valve is especially suitable for making large diameter valves. Butterfly valves are widely used not only in general industries such as petroleum, gas, chemical, and water treatment, but also in the cooling water system for thermal power plants. This type of valve should generally be installed horizontally in the pipeline.
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