Advantages And Disadvantages Of Fluorine-lined Check Valves In The Chemical Industry

Advantages: The most significant advantage of Lined Check Valve in the chemical industry is its good corrosion resistance. Compared with other valves, in many cases, the fluorine-lined check valve will add corrosion-resistant polyperfluoroethylene propylene, so it has good performance. In the chemical industry, it can cut off strong corrosive media such as acids, alkalis and salts, and it can also play a good role in some water treatment control systems. In addition, the fluorine-lined check valve has certain price advantages compared to ordinary check valves made of corrosion-resistant metal materials.

Disadvantages: Compared with other valves, the fluorine-lined check valve actually only has one advantage of corrosion resistance. But its disadvantages are mainly reflected in sealing and temperature resistance. Especially in low temperature environments, the outer shell of the fluorine-lined check valve may produce condensation due to the low temperature of the medium, which will cause rust on the carbon steel outer shell; and according to experiments, domestic fluorine-lined check valves are more likely to have internal leakage, and the probability is greater than that of ordinary valves of the same type.
Application of fluorine-lined check valves in the petroleum industry