Fluorine-lined elbow

Fluorine-lined elbows are elbows internally lined with fluororubber, usually made of polytetrafluoroethylene. The primary purpose is to enhance the elbows' corrosion resistance, such as for transporting acidic or alkaline liquids. It is used to improve the corrosion resistance of elbows or pipes, valves, or to enhance their temperature resistance and aging resistance.