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Polypac PTFE Piston Seal — Durable Low-Friction Solution

High-performance PTFE piston seals from Polypac deliver low friction, wide temperature and chemical resistance, long service life, and custom sizes from an advanced factory — ideal for demanding hydraulic systems.

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Product Information

Polypac PTFE Piston Seal — Reliable Sealing for Hydraulic Systems

Polypac PTFE piston seals combine the proven benefits of PTFE with decades of seal manufacturing expertise. Designed for hydraulic cylinders and demanding environments, these seals reduce wear, lower friction, and extend service life — helping equipment run smoother and longer.

Key Benefits

Low friction and smooth movement for improved efficiency
Excellent chemical and media resistance
Wide temperature range for hot and cold applications
High wear resistance for longer intervals between maintenance
Available in filled PTFE options (bronze, carbon, graphite, MoS₂, glass) to match different needs

Why Choose Polypac?

Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier focused on quality and innovation. Our factory spans over 10,000 m² with 8,000 m² of production space and advanced testing equipment. Since 2008 we have specialized in filled PTFE solutions and now offer a full range of sealing materials including NBR, FKM, silicone, EPDM, and FFKM.

Custom Solutions & Quality Assurance

We work closely with clients and research institutions to develop seals tailored to special working conditions. Whether you need a specific filler for low friction, enhanced conductivity, or improved wear life, Polypac provides custom sizes, materials, and tolerances. Every seal undergoes rigorous inspection and performance testing to ensure consistency and reliability.

Applications

Ideal for hydraulic cylinders, oil and gas equipment, industrial machinery, and any application requiring long-lasting, low-friction piston seals. Our PTFE seals perform well where chemical exposure, temperature swings, or high-pressure cycles are present.

Contact Polypac today to specify PTFE piston seals that match your system requirements. Fast lead times, professional support, and proven performance make Polypac the smart choice for critical sealing needs.

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Q&A

How can I prevent seal damage during installation?

Use Tools: Always use dedicated installation tools (e.g., picks, cones, guides). Lubricate: Always lubricate the seal and the contact surface. Protect Sharp Edges: Cover sharp threads and edges with tape or use an installation sleeve. Check the Groove: Ensure the installation groove is clean, deburred, and undamaged.

What is the purpose of the metal spring in a rotary shaft seal?

The garter spring in a shaft seal (e.g., FSKR, SPGO types) provides a constant radial force on the sealing lip. This ensures consistent contact with the rotating shaft, compensating for minor wear, eccentricity, and vibration to prevent lubricant leakage.

When should I use a spring-energized seal instead of a standard elastomeric seal?

Consider a spring-energized seal (e.g., GSF, SPN types) for demanding applications involving: Extreme Temperatures (below -30°C or above +200°C) Aggressive Chemicals that elastomers can't handle Very Low Leakage or "Zero Leakage" requirements Poor Lubricity or dry running conditions The internal spring maintains constant sealing force, compensating for wear and system variables.

Can I reuse a seal?

We strongly recommend never reusing seals. Once compressed and used, a seal takes a "set" and its elastic properties are degraded. Reusing it almost always results in a leak. Always install a new seal during any maintenance or repair.

About other questions pls contact me directily.

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PRODUCTS

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac Industrial Technology Co.,Ltd

+86 189 2463 6168

rose@dmsseals.com

No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.

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