The electric butterfly valve is a kind of high elastic body made of ordinary materials. The composite butterfly valve is composed of the metal spiral butterfly valve and the high-quality vulcanization wrapped outside.
In terms of corrosion prevention, the rubber butterfly valve has previously introduced the electroplating metal protection method. The electroplating metal coating anti-corrosion protection method is not only to prevent the butterfly valve from being eroded, but also to enhance and beautify the appearance of the butterfly valve to a certain extent. It also strengthens the working mechanism of the butterfly valve on a certain basis, improves the hardness and stability of the butterfly valve, Therefore, the method of metal protective layer is often used for butterfly valves on the erosion prevention layer.
The erosion prevention method of butterfly valve is to prevent the erosion of butterfly valve by keeping the chemical properties of metal zinc in the air unchanged, and forming a dense zinc oxide film in humid air. If there are many erosions in the air, the butterfly valve should be passivated to increase its protection ability and aesthetic level.
The electric butterfly valve has nonlinear elasticity, and its performance curve can be designed into an ideal shape.