American High Performance Seals

Static Seals

hyrdraulic seals

When there is very little or no motion of the mating assembly parts upon the seal, a static condition exists. Usually an initial compression or periodic compressions typify static seal.

When compressed, as with an o-ring or a seal, outward expansion results in the horizontal direction as a pressure relief, and this change needs to be accommodated in the housing design to avoid an overfill of the groove into which the seal fits. The groove or seal housing must, therefore, always be wider than the o-Ring or seal itself. The recommended compression range for static seals is 10% - 30%.

Recent Article
1. Static Seals May Not Be Static    < Click to View PDF

Static Seal Profiles

P58 OCT SS01      


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For your unique or special Hydraulic & Fluid Seal application contact our engineers to help you in specifying a seal that’s best for your situation.

At American High Performance Seals, we pride ourselves on manufacturing the most durable hydraulic & fluid and static seals. Utilizing advanced materials designed specifically to offer our customers maximum durability, we manufacture the widest array of seal and material options to meet industry’s challenging fluids, temperatures, surface speeds and pressures.

Most standard and custom-made hydraulic and fluid seals are available with a 1-4 day turnaround.

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AHP Seals Static Seals are currently in successful service in the following industries:

  • Steel Works
  • Government, Military and Defense
  • Abrasive Substance Pumps and Valves
  • Pharmaceuticals
  • Can and Package Filling Machines
  • Oil-Field Exploration and Production
  • Paint and Solvent Manufacture and Application
  • Adhesives Dispensing Valves and Cylinders
  • Chemical Pumps
  • Cryogenic Liquid Control Components
  • Liquid Handling Swivel Joints
  • Hydraulics
  • Construction Equipment
  • Drilling Equipment
  • Chemical Pumps and Valves
  • Heavy Mobile Equipment
  • Mining
  • Rubber and Plastics
  • Presses
  • Food Processing
  • Space Exploration
  • Marine
  • Tire Production
  • Low Friction
  • Vacuum Service
  • Automotive Plants
  • Pharmaceutical Production
  • Domestic Goods Production
  • Many other applications

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Our extensive range of Static Seals are available in a wide variety of sizes and materials. Our materials include: Polyurethane, Nitrile, Viton®, H-Nbr, high-performance Polyurethane, water resistant (hydrolysis resistant) Polyurethane, EPDM, Silicone, FDA compliant materials, Aflas®, Hytrel®, Kalrez®, UHMWPE, Tefzel®, Nylon, Nylatron®, Engineering Plastics, Peek, and a range of proprietary-filled Teflon® (PTFE). Many special Duralast™, Permachem™ and Duraloy™ Engineering Plastics and Elastomers were developed to match real-world applications, and on many occasions we have developed a special grade to address a customer's application difficulty.


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American High Performance Seals, Inc.
408 High Tech Dr.• Imperial Business Park•Oakdale, PA 15071
Phone: 412-788-8815 • FAX: 412-788-8816 • Email:

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