As the material that makes PTFE ring gaskets, polytetrafluoroethylene (PTFE) has been widely used for decades in high-temperature and high-pressure applications. PTFE ring gaskets used on piston engines keeps the oil away from entering the engine, which reduces engine wear. Furthermore, it helps to reduce noise and vibration from engines.
Engine oil seals, transmission fluid seals, hydraulic seals, automobile clutches and brakes, air conditioning systems, and water pumps are just a few of the many uses for PTFE Ring Gaskets. They are created utilizing PTFE, a polymer that is incredibly tough and long-lasting.
Because they are extremely resistant to chemicals and can sustain high temperatures without losing any of their qualities, PTFE rings have several advantages over other materials like rubber.
Advantages of PTFE Ring Gasket
Protective coating against corrosion:
When rubber compounds or caustic chemicals are incompatible, PTFE may be the ideal material. Due to its resistance to practically all industrial solvents, PTFE can be used in all industries as a corrosion-resistant material. The use of PTFE may also be useful if rubber composites are threatened with a chemical attack.
Wide range of temperature tolerance:
The temperature range that PTFE can withstand, from -325°F to +500°F, is also far wider than that of the majority of elastomers.
Again, PTFE is the optimum material for applications involving cryogenics or high temperatures, such as those found in ovens or combustion processes, which may rule out the use of any elastomer compound.
Most rubber compositions will harden to the point that any elastomeric qualities are no longer present at extremely low temperatures. This, together with material contraction, may cause it to lose its ability to act as a seal. On the other hand, even at cryogenic temperatures, PTFE maintains its flexural and pliability qualities.
Enhanced shelf life:
Also suitable for harsh environments and long service intervals, PTFE may be beneficial for applications requiring long lifespans.
It may be possible for some elastomers to survive temporarily or under intermittent exposure, but long-term degradation could present problems, while PTFE has permanent corrosion resistance.
PTFE O-Rings Have Other Advantages
When compared to rubber composites, PTFE also has several extra benefits:
There is no limit to the shelf life of PTFE because it is UV light and age resistant.
PTFE is not prone to explosive decompression, nor does it swell as a result of absorbing moisture.
The electrical qualities of PTFE, such as its electrical resistance and dielectric strength, are outstanding.