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Piston Seal Assemblies

Piston seals prevent pressurized fluid from leaking across the cylinder head as the pressure pushes the piston down the cylinder bore. A single-acting piston seal provides the optimal sealing solution for unidirectional hydraulic systems. A double-acting piston seal is capable of sealing the pressurized fluid from both sides in a bidirectional hydraulic system.

Click on the product links below to find exactly what you're looking for in our Online Catalog.

  • PS1400 - 15% Glass Filled PTFE Seal Rubber Expander
  • PS1500 - Urethane Seal Rubber Expander
  • PS1600 -Two Piece - Glass Filled PTFE Piston Seal Rubber Expander
  • PS1800 - Glass Filled PTFE Piston Seal Rubber Expander
  • PS1850 - Bronze Filled PTFE Piston Seal Rubber Expander

We started as a simple online company taking care of a precious few people. Our circle of business friends has grown over the years and taking care of them is more satisfying than ever. We take care of our customers' Standard O-Rings, Metric O-Rings, Vulcanized O-Rings, and Custom O-Rings. Just place your O-Ring order online and we will take care of you too.

We are a family owned and operated Distributor and Manufacturer of O-Rings, O-Ring Kits, OSK™ O-Ring Service Kits, Hydraulic Seals, Adhesives, Lubricants, Braided Packings, Coatings, O-Ring Cord, Lathe Cut, Oil and Shaft Seals, Gaskets, Retaining Rings, Molded Packings, Seals, and Molded Rubber Products.

We serve many industries, including manufacturing, chemical processing, defense, power generation, agricultural, water treatment and filtration, hydraulics, fluid power, heavy truck, automotive, aerospace, oil and gas, medical and life sciences, food and beverage, electronics and industrial controls, refineries, and supply chain suppliers. Each industry and each customer have unique requirements that make them special. We love sharing customer stories and applications at our weekly store meeting.