First, it has excellent high temperature resistance. Graphite materials can withstand very high operating temperatures, while soft polytetrafluoroethylene (PTFE) has good thermal stability. When the two are combined, the gasket can maintain a reliable sealing effect at working conditions up to about 400°C, especially suitable for high-temperature steam, hot oil and high-temperature gas environments.

Second, it exhibits extremely strong corrosion resistance. Polytetrafluoroethylene is one of the best known materials with chemical stability, and can withstand almost all strong acids and alkalis, organic solvents and oxidizing media. This makes the gasket very suitable for use in chemical, pharmaceutical and food industries where the corrosion of the sealing medium is extremely high.

Third, the gasket has good softness and sealing performance. Flexible graphite has extremely strong compressibility and resilience, which can effectively fill the tiny unevenness on the flange connection surface. In addition, the low friction characteristics of PTFE enable the gasket to deform evenly after being compressed, thus forming a stable and reliable seal.

In addition, the self-lubricity and low friction coefficient of this gasket are also very outstanding. It is suitable for some sealing parts that need to be repeatedly disassembled, rotated or slightly dynamically displaced. It is not easy to wear or bond.

It also has excellent anti-aging performance and long service life. Graphite and PTFE materials themselves have strong anti-aging ability, and are not prone to cracks, hardening or performance degradation even in high temperature, humidity, oxidation or long-term use environments.

Finally, this composite gasket is usually designed with a multi-layer structure and strong customizability. It can be designed with a metal reinforcement layer, a coating structure or a special cross-sectional shape according to specific working conditions to adapt to different pressure levels and equipment sealing requirements.

In summary, the graphite ring soft polytetrafluoroethylene gasket combines the temperature resistance, flexibility and thermal conductivity of graphite with the chemical corrosion resistance and low friction advantages of PTFE. It is a sealing material with excellent comprehensive performance, especially suitable for harsh working conditions of high temperature, high pressure and high corrosion.