Rod & Piston Seals
Hydraulic Sealing Solutions for Rod & Piston Applications
What Are Rod & Piston Seals?
Rod and piston seals are critical components in hydraulic and pneumatic systems, designed to prevent fluid leakage and maintain system pressure during dynamic operation.
- Rod seals prevent leakage from inside the cylinder to the outside environment
- Piston seals seal between the piston and cylinder bore, controlling fluid flow and pressure within the system
Together, they ensure efficient, reliable motion in hydraulic cylinders.
Why Proper Sealing Matters
- Maintains system pressure and efficiency
- Prevents external leakage and contamination
- Reduces wear on components
- Extends equipment lifespan
- Minimizes downtime and maintenance costs
Common Applicatons
- Hydraulic cylinders
- Oil & gas equipment
- Mobile equipment (construction, agriculture)
- Industrial machinery
- Presses and actuators
Rod and piston seals are available in a variety of materials and profiles to match application requirements, including pressure, temperature, and media compatibility.
Key Selection Considerations
- Pressure and temperature range
- Fluid/media compatibility
- Speed and frequency of operation
- Surface finish and hardware design
- Contamination and environmental exposure
Proper seal selection is critical to long-term performance.
Common Materials
- Polyurethane (PU)
- Nitrile (NBR)
- Fluorocarbon (FKM)
- PTFE (filled and unfilled)
Common Profiles
- U-cups
- Compact seals
- Double-acting piston seals
- Step seals
- Loaded lip designs
Why Performance Seals
- Authorized Parker Distributor
- Access to proven materials and engineered seal profiles
- Support for demanding applications (oil & gas, industrial)
- Fast response and reliable supply
- Kitting and inventory programs available
Helping you get the right seal—ready when you need it.