Possible Problems In The Use Of Wafer-type Fluorine-lined Butterfly Valves

Lined Butterfly Valve What problems may exist during the use of the wafer-type fluorine-lined butterfly valve?
1. The sealing ring of the wafer-type fluorine-lined butterfly valve is fixed on the valve body in the form of multiple layers of soft and hard superposition. Therefore, when the valve body is in the normally open state, the medium flows in and flushes the sealing surface positively. If it is used for a long time, the sealing performance will be more or less affected;
2. Due to the structural problems of the wafer-type fluorine-lined butterfly valve itself, there is no way to manufacture valves below eight inches. The main reason is that the valve plate of the wafer-type fluorine-lined butterfly valve requires a larger thickness and a larger fluid resistance.
3. Since the principle of the wafer-type fluorine-lined butterfly valve is to press the valve plate against the valve seat through the torque transmitted by the transmission rotor to achieve sealing, in the positive flow state, the higher the medium pressure, the tighter the seal, but if it is in the reverse flow state, the medium pressure is greater than the pressure between the valve body and the valve seat, the sealing performance begins to deteriorate.