API lug butterfly valve

The American standard convex butterfly valve is a new generation of high performance products developed by our engineers and technicians. Its performance is in the advanced level at home and abroad and is widely used in the industrial pipelines of low pressure, medium pressure, high pressure, iron and steel, oil, chemical, electric power and other industrial pipelines. The American standard butterfly valve is sealed with three dimensional eccentrically skew conical valve seat. The butterfly plate seal is laminated with a new metal sheet and elastic material and is embedded in the butterfly plate with the seat. The seal is tightened with the swinging of the butterfly plate, so the friction resistance of the sealing surface is small and the tighter function of the seal is closed when the seal is closed, so that the seal is reliable and the cover is completely separated from the contact, and the seal face is not damaged. The structural features of the American standard butterfly valve exclude the shortcomings of other types of butterfly valves, which can not be sealed and can not be sealed. It can be used normally at the high dawn, so that other types of valves are easily leaked due to thermal expansion when the valves are used in high temperature. The butterfly valve is equipped with different sealing surface materials to ensure that the sealing surface is wear resistant, corrosion resistant and has long service life.