American High Performance Seals

Piston Seals

For linear and reciprocating dynamic sealing applications

hyrdraulic seals

AHP Seals' non-symmetric Piston Seal designs ensure a high static seal force on the inside diameter of the seal, which adds stability and helps to limit the rocking motion of the seal as the piston cycles, and in turn can reduce fluid seepage.


We offer these types of piston seals:

Piston Seal Profiles

Single-acting (unidirectional): Sealing pressure only from one side (most common)


K01 K01A K01B K02 K02A K03
K04 K05 K16 K19 K82  


Double-acting (bidirectional): Capable of sealing pressure from both sides


K08 K08C K08D K81 K08E K20
K08F P56 P57 P50 P51 P52
P53 P54 P55 K35    


Find a seal and check instant availability

For your unique or special Hydraulic & Fluid Seal application contactour 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 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.

Back To Top Applications & Industries

AHP Seals Piston 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 Piston 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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Contact Information
Toll Free: (800) 283-7140
Fax: (412) 788-8816
Rotary Seal Profile

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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