What working environment requires the use of teflon lined rubber expansion joints?

PTFE-lined rubber expansion joints are more common in chemical pipelines, mainly used in strong acid and alkali, strong high temperature, strong corrosive pipeline equipment, used in extreme environments, especially in more corrosive media, including: transport pipes, exhaust pipes, steam pipes for transporting corrosive gases, high pressure oil pipes for rolling mills, high and low pressure pipes for aircraft hydraulic systems and cold pressure systems, distillation towers, heat exchangers, kettles, towers, tanks lining, valves and other chemical equipment.
PTFE rubber expansion joints are based on general rubber expansion joints or EPDM wear-resistant joints with PTFE coating inside, which can effectively protect rubber joints from corrosive media such as strong acids, strong alkalis or high-temperature oil, and PTFE coating can effectively adhere to the inner wall of the pipe to prevent it from being washed by the media or from being detached by the stretching and shrinking of the pipe, so that the original bendable rubber expansion joints have Mechanical and physical properties have not received a little impact, but still be able to compensate for pipeline vibration and absorb pipeline displacement to reduce pipeline noise.
PTFE rubber expansion joint has the characteristics of vibration damping, high temperature resistance, can be flexed, friction resistance, etc.. Suitable for pipeline misalignment difference, displacement, size change and vibration parts of the connection. Can be used for storage tanks, tankers and other equipment to give, discharge pipe, but also for other special purposes. Its use range is wider, the role is more. Fluorine rubber lined expansion joint of PTFE has excellent chemical stability, corrosion resistance, is one of the best materials on corrosion resistance today, in addition to molten metal sodium and liquid fluorine, can resist all other chemicals, boiling in water also does not change, widely used in a variety of need to resist acid and organic solvents. Sealing, high lubrication non-stick, electrical insulation and good anti-aging resistance, excellent temperature resistance.