What is special about PTFE seals?

Release time:

2024-11-05

Its performance advantage lies in the stability of chemical media, being able to operate in almost all chemical media: strong acids, strong bases, oxidants, and solvents; it is heat-resistant and can operate normally within a high temperature range.

The special feature of polytetrafluoroethylene seals lies in their excellent temperature resistance, corrosion resistance, low friction coefficient, and self-lubricating properties.

Temperature resistance
Polytetrafluoroethylene seals have outstanding temperature resistance. They can maintain excellent performance over a wide range of long-term operating temperatures, from -200℃ to +300℃. Their melting point is as high as 327℃, and they retain their original mechanical properties and chemical stability even at high temperatures.

Corrosion resistance
Polytetrafluoroethylene seals have extremely high chemical stability, able to resist the corrosion of most chemical substances, including strong acids, strong bases, and various organic solvents. This characteristic allows polytetrafluoroethylene seals to maintain stable performance in various complex working environments, especially excelling in industries such as chemicals and pharmaceuticals.

Low friction coefficient and self-lubricating properties
Polytetrafluoroethylene has an extremely low friction coefficient (only 0.02), which results in minimal friction loss, making it suitable for applications that require low friction and high lubrication. In addition, polytetrafluoroethylene seals have self-lubricating properties, which means they hardly adhere to any sticky substances, ensuring smooth operation of equipment and significantly reducing wear.

Application fields

Due to their excellent performance, polytetrafluoroethylene seals are widely used in various industrial fields. For example, in the chemical and pharmaceutical industries, polytetrafluoroethylene seals effectively prevent the penetration of chemical substances, protecting the normal operation of equipment and production processes. Additionally, they are suitable for medical devices, printing, papermaking, fiber industry, food industry, and more.