The Glass Filled PTFE Hydraulic Piston Seal Assembly delivers exceptional sealing integrity in demanding hydraulic cylinder applications. Manufactured from glass fiber-reinforced PTFE, this piston seal assembly offers superior dimensional stability, reduced cold flow, and outstanding resistance to extrusion — even under sustained high-pressure cycling.
Key Benefits
Enhanced Wear Resistance: Glass fiber reinforcement significantly extends service life compared to virgin PTFE, reducing maintenance intervals in high-duty-cycle systems.
Broad Chemical Compatibility: Resistant to hydraulic oils, water-glycol fluids, phosphate esters, and most industrial hydraulic media.
Wide Temperature Range: Performs reliably from -65°F to +450°F (-54°C to +232°C), suitable for both ambient and elevated-temperature hydraulic circuits.
Extrusion Resistance: Glass fill reduces material creep and extrusion into clearance gaps, maintaining seal geometry under high-pressure loads.
Typical Applications
Industrial hydraulic cylinders
Mobile equipment and heavy machinery
Press and forming equipment
Injection molding and die casting machinery
Aerospace and defense hydraulic actuators
Designed as a complete assembly for drop-in installation, this piston seal is available in standard bore sizes and can be configured for custom dimensions to meet OEM and MRO specifications.
