PTFE Piston Rod Seal — Reliable Sealing Solutions by Polypac

PTFE Piston Rod Seal — Low Friction, High Reliability

Polypac's PTFE piston rod seal products deliver exceptional wear resistance, low friction and broad chemical compatibility for hydraulic systems. Designed for demanding conditions, our seals reduce leakage and extend cylinder life. Whether you need bronze-filled PTFE for load-bearing applications or MoS₂-filled PTFE for improved lubrication, Polypac tailors solutions to maximize performance and minimize downtime.

Why Choose PTFE Piston Rod Seal?

PTFE piston rod seal materials provide outstanding temperature stability, low coefficient of friction and resistance to aggressive fluids—key advantages in modern hydraulic and pneumatic applications. Filled PTFE options (carbon, glass, graphite, bronze) enhance mechanical strength and abrasion resistance. These properties make PTFE seals ideal for heavy machinery, mobile hydraulics, oil & gas equipment and precision industrial systems.

Polypac Manufacturing & Material Expertise

Polypac is a scientific and technical hydraulic seal manufacturer with a 10,000 m² facility and 8,000 m² production space. Since 2008 we have specialized in filled PTFE production and expanded to NBR, FKM, silicone, EPDM and FFKM O-rings. Our advanced production and testing equipment, combined with partnerships with universities and research institutions, ensures consistent quality and material innovation for every PTFE piston rod seal.

Applications & Performance Characteristics

PTFE piston rod seal designs from Polypac are optimized for heavy load, high-speed and corrosive environments. Typical applications include hydraulic cylinders, industrial presses, offshore actuators and aerospace systems. Expect low wear rates, stable sealing under fluctuating pressures, and reliable operation across wide temperature ranges.

Customization, Testing & Quality Assurance

We provide customized geometries, compound blends and surface finishes to meet tight tolerance and special working condition requirements. Polypac's rigorous testing protocols and material development work with academic and industry partners deliver repeatable performance and long service life for each PTFE piston rod seal we produce.

Ordering & Technical Support

Polypac offers quick prototyping, scalable production and responsive technical support. Contact our engineering team to specify materials, dimensions and operating conditions—our goal: deliver the optimal PTFE piston rod seal solution that balances cost, durability and performance.

PTFE piston rod seal Display

FAQ:
What does "AS568" mean?

AS568 is the Aerospace Standard that defines the dimensions for over 360 standard O-ring sizes. It is the most widely accepted sizing system in North America and globally. An AS568 number (e.g., AS568-214) specifies a precise inside diameter and cross-section.

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.

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 difference between NBR and FKM materials?

NBR (Nitrile/Buna-N): A general-purpose, cost-effective material with excellent resistance to petroleum-based oils and fuels. It has a standard temperature range of -30°C to +100°C (-22°F to +212°F). FKM (Fluoroelastomer/Viton®): A premium material with excellent resistance to high temperatures (up to 200°C+), chemicals, and oils. It is used in more severe environments but is more expensive than NBR.

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