Fluorine-lined elbow

Fluorine-lined elbows are elbows with a layer of fluororubber lining the interior, commonly made of polytetrafluoroethylene. The primary purpose is to enhance the elbow's corrosion resistance, such as for conveying acidic or alkaline liquids. It is used to improve the corrosion resistance of elbows, pipes, or valves, or to enhance their temperature resistance and aging resistance.