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Piston Seals

4 results found that include 73 Products

Piston seals help ensure that pressurized hydraulic fluid does not move past the piston as it moves up and down the cylinder during a pressure cycle. Hydraulic cylinder piston seals are installed in a groove around the piston. Maintaining a tight seal ensures that the cylinder maintains pressure. Weakened or leaking seals cause pressure in the seal to drop, reducing or eliminating the ability of the cylinder to support a load.Close

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  • Piston Seal Kits

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    Piston Seal Kits

    Multiple items available9

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  • About these products
    Piston seal kits (sometimes called piston seal assemblies or bore kits) include the seals required to repair hydraulic-cylinder piston seals.
    Piston Seal Kits
  • Piston T-Seals

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    Piston T-Seals

    Multiple items available22

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  • About these products
    Piston T-seals are used in single- and double-acting hydraulic cylinders and in medium- to heavy-duty hydraulic applications. They have a T-shape with a hard plastic back-up ring on each side to help prevent rolling and spiraling. Back-ups on each side of the ring make these seals a good choice for use in double-acting cylinders.
    Piston T-Seals
  • PTFE Square Ring Piston Seals

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    PTFE Square Ring Piston Seals

    Multiple items available19

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  • About these products
    Polytetrafluoroethylene (PTFE) square ring piston seals are used in double-acting cylinders. They have a round nitrile loader that faces the piston and a square ring constructed of 15% glass-filled PTFE that provides low friction, high strength, and strong resistance to chemicals. PTFE square ring seals are often used in machine tools, hydraulic presses, and mobile hydraulics.
    PTFE Square Ring Piston Seals
  • Piston Crown Seals

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    Piston Crown Seals

    Multiple items available23

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  • About these products
    Piston crown seals are used in double-acting cylinders and light- to medium-duty applications. Crown seals sit in the piston groove and can be used in place of T-seals and O-rings. The flat sides of the seal help prevent extrusion and rolling.
    Piston Crown Seals