These PTFE backup rings resist harsh chemicals, such as acetone, fluorinated solvents, methanol, and many acids.

PTFE gives these seals a slippery surface that allows rod speeds more than two times faster than our other piston seals.

Avoid common O-ring failure in dynamic applications—the square base of these seals prevents twisting, while backup rings protect against extrusion.

Rated for pressure up to 10,000 psi, these seals withstand the highest pressure of our piston seals.

These seals have a beveled lip that optimizes contact against the rod, while a secondary lip keeps the seal stable.

Replace the standard O-ring/backup ring combination with a more reliable alternative—these head seals resist twisting and remain stable even in applications with fluctuating pressure.