Uniring

The piston Uniring is a one-piece, double-acting piston seal made of two bonded materials: a hard,
wear-resistant dynamic sealing layer (Duro 60D) and a softer, resilient static sealing layer (Duro 57A)
that acts like a seal energizing spring for reliable sealing across a wide pressure range. This design
ensures reliable sealing across a wide pressure range, allows easy installation on one-piece pistons,
and replaces a variety of seal types (O-rings, O-rings with back-ups, T-seals, U-seals).