Piston Seal UNP Profile | Zatkoff

Piston Seal UNP Profile

Piston Seal UNP Profile


The UNP profile is a non-symmetrical, hydraulic piston seal. The knife trimmed, beveled lip faces the bore to provide enhanced low to high pressure sealing and wiping action. The UNP profile is a uni-directional seal. Two UNP seals can be used, back to back, in separate grooves to provide bi-directional pressure sealing. The UNP profile is an economical choice, available in Parker’s wear and extrusion resistant Molythane compound.

Standard Materials

  • P4615A90

Alternate Materials: For applications that may require an alternate material, please contact your local Zatkoff Seals & Packings representative.

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