Piston Ring Joint Configuration

A good bi-directional seal for many sealing purposes.

Often used on automotive seals and applications where some leakage is acceptable.

Often used for steam applications.

A ring which seals in ONE direction and has very good sealing qualities. “UP” is stamped on pressure side of ring.

An excellent bi-directional seal–seals, on two surfaces–often used when leakage is a critical concern.

Seals on three surfaces. This ring is an excellent seal for hydraulic, pneumatic and steam applications and keeps leakage to the absolute minimum.

Often used for restricted or “blind” installations.