The core role of PTC and PTCR in brass fittings

Realize reliable sealing: They are the core components for achieving leak-free connections in accessories, directly responsible for sealing function.
Chemical corrosion resistance: Protect the brass body (although brass itself is corrosion-resistant, it is not universal) from the erosion of strong corrosive media in pipelines, and extend the service life of accessories. They are almost unaffected by chemicals themselves.
Enduring extreme temperatures: able to maintain elasticity and sealing performance even at extremely low and high temperatures (far exceeding the limits of rubber or ordinary plastics), ensuring the safe operation of the system over a wide temperature range.
Provide long-term stability (cold flow resistance): Especially PTCR, its excellent cold flow resistance ensures that the sealing force does not decay under continuous pressure, avoiding later leakage caused by material creep, which is difficult to achieve with ordinary rubber and pure PTFE.
Ensure high purity: No pollutants or adsorption media will precipitate, which is crucial for maintaining fluid purity (such as in pharmaceuticals, chip manufacturing).
Reduce friction for easy installation: A Smooth surface with a low friction coefficient, making pipeline insertion smoother, reducing installation resistance, and protecting the pipeline surface.
Adapting to complex designs: The melt processability of PTCR allows for the manufacture of more complex and precise sealing structures, meeting the design requirements of modern compact and high-performance accessories.