PTFE Piston Seals and Rod Seals

The rod seal is the most critical seal on any type of fluid power equipment preventing leakage of fluid from within the cylinder to the outside. Leakage through the rod seal can reduce equipment performance, and also in extreme cases can cause environmental issues.

PTFE piston seals (PTFE rod seals) as Spring-energized seals and memory packings are always the ideal choice for sealing static or dynamic pistons and rods.

Properties

Outstanding dry-running characteristicsLow wearLow frictionVariable friction conditions through choice of spring characteristicsExtremely low breakaway forces even after prolonged downtimesNo stick-slip effect even at low sliding speedsHigh dimensional stabilityHigh chemical and thermal stabilityNo volumetric change by swelling or shrinkageCompact seal, suitable for O-ring assembly spaces in acc. Good cost-benefit ratioDimensions from Ø 2 to 3,000 mm availableVery good wiping effect with abrasive media, such as paints and lacquersSterilizableEasy to rinse

Suitable for the Following Application Areas

Automotive industry, e.g., in gasoline direct injection and in headlight cleaning devices;General mechanical engineering, e.g., in valves, solenoid valves, CNC machines, compressors, and vacuum pumps as well as tank systems;Aerospace industry, e.g., in landing gear systems;Food processing industry, e.g., in filling machines and metering systems;Pneumatics, e.g., in cylinders and other pneumatic components;Medical engineering and analytics, e.g., in chromatography and endoscopy;Offshore technology, e.g., as petroleum and natural gas seals;Chemical plant and equipment technology, e.g., in apparatus and container engineering;