The PTFE sealing ring, also known as the tetrafluoroethylene sealing ring or Teflon sealing ring, PTFE or F4 for short, is a polymer of tetrafluoroethylene. It has a range of unique characteristics that make it ideal for sealing applications. Here are some of the main features of PTFE seals:
High chemical stability:
PTFE sealing ring has excellent chemical inertia, and is almost non-reactive to strong acids, strong bases, strong oxidants and a variety of organic solvents. This chemical stability guarantees its long-term reliability in a variety of chemical environments.
Good thermal stability:
PTFE sealing ring has excellent thermal stability, its cracking temperature is above 400 ° C, and can work normally in a wide temperature range of -200 ° C to 300 ° C. This wide temperature operating range allows PTFE seals to maintain good sealing performance even in extreme temperature environments.
Low coefficient of friction:
PTFE sealing ring has a low coefficient of friction, whether it is between metal or other materials, it shows good anti-friction. In addition, its surface is self-lubricating and not easy to adhere to viscous substances, thus ensuring a long-term sealing effect.
Excellent wear resistance:
PTFE seals have excellent wear resistance and maintain stable sealing performance even in high-speed and high-pressure working environments.
