Problems in the use of electric hard-sealed butterfly valves

The electric hard-sealed butterfly valve is a non-closed butterfly valve used in construction engineering, mining, electric power engineering, and chemical gold smelting. It is mainly suitable for ventilation in these projects, and in dust-containing gas pipelines, it plays a role in regulating gas flow and interception. In the field of butterfly valves, there are soft-sealed butterfly valves and metal-sealed butterfly valves. The two are mainly made of different materials and sealing characteristics. According to different driving methods, hard-sealed butterfly valves can be divided into manual hard-sealed butterfly valves, hydraulic-sealed butterfly valves, and electric Sealed butterfly valve. Now, people choose more electric hard-sealed butterfly valves. Although the electric sealing butterfly valve is easy to use, there are several problems. For example, when the valve plate of the butterfly valve is in the open state, the sealing surface is scoured by the medium, causing the sealing effect to decrease. Due to the design institute between the sealing surface of the valve plate and the valve seat, when the medium is flowing forward, the sealing surface is squeezed more strongly. When the medium flows backward, the pressure between the valve plate and the valve seat will be less than that of the medium in the pipeline. The pressure is easy to cause leakage accidents.