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Polypac High Temperature Piston Seal Category

High Temperature Piston Seal — Reliable Sealing for Extreme Conditions

Polypac offers specialized high temperature piston seal solutions designed for hydraulic and pneumatic systems operating under elevated temperatures and harsh environments. Backed by over a decade of material science expertise and collaboration with leading universities, our seals balance thermal stability, wear resistance and low friction to maximize uptime and service life.

Why Choose Polypac High Temperature Piston Seal

As a scientific and technical hydraulic seal manufacturer, Polypac focuses on performance-driven design. Our high temperature piston seal products are developed with an emphasis on dimensional precision, consistent compression set resistance, and proven compatibility with hydraulic fluids. We provide reliable sealing that reduces leakage and maintenance cycles.

Advanced Materials & Performance

Polypac began with filled PTFE formulations and expanded to a broad material portfolio—bronze-filled PTFE, carbon-filled PTFE, MoS₂-filled PTFE, graphite and glass-filled variants—plus NBR, FKM, silicone, EPDM and FFKM O-rings. For high temperature piston seal applications, we select and test compounds to withstand thermal aging, extrusion and frictional heat while maintaining seal integrity.

Customization, Testing & Quality Assurance

Our custom rubber ring and O-ring factory spans over 10,000 m² with state-of-the-art production and testing equipment. Polypac offers tailored geometries, compound formulations and thermal endurance testing to meet specific operating ranges. Long-term partnerships with research institutions ensure our solutions follow the latest standards and innovations.

Typical Applications

High temperature piston seal products from Polypac are ideal for industrial hydraulics, injection molding, downhole tools, aerospace actuation and other systems exposed to elevated temperatures or aggressive media. We optimize each seal for friction control, leakage prevention and long service intervals.

Support & Ordering

Polypac provides full technical support from material selection to prototype trials and production scaling. Contact our engineering team for custom quotations, drawings review and rapid prototyping to integrate a high temperature piston seal solution that fits your equipment and performance goals.

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FAQ:

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.

How do I choose the right material for my sealing application?

Material selection depends on four key factors: Media: What fluid or gas will the seal contact? (e.g., petroleum oil, water, chemicals, steam) Temperature: What is the minimum and maximum operating temperature? Pressure: What is the system's operating pressure? Are there pressure spikes? Application: Is it a static, dynamic, or rotary seal? Example: NBR (Buna-N) is excellent for standard hydraulic oil, while FKM (Viton®) is needed for high temperatures or aggressive chemicals.

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.

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.

Table of Contents

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High Temperature Piston Seal — Reliable Sealing for Extreme Conditions
Why Choose Polypac High Temperature Piston Seal
Advanced Materials & Performance
Customization, Testing & Quality Assurance
Typical Applications
Support & Ordering
high temperature piston seal Display

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