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Polypac High Temperature Piston Seal Solutions

Polypac High Temperature Piston Seal Solutions

Overview

Polypac offers High Quality high temperature piston seal solutions engineered for hydraulics and reciprocating systems operating under extreme heat and demanding cycles. Leveraging decades of sealing expertise, we combine material science with precision machining to deliver piston seals that resist extrusion, thermal aging and chemical attack—ensuring reliable, leak-free operation.

Materials & Technology

Our product range includes filled PTFE variants (bronze-, carbon-, graphite-, MoS2-, and glass-filled PTFE) and advanced elastomers such as FFKM, FKM, NBR, EPDM and silicone. Each high temperature piston seal is selected and formulated to match temperature ranges, friction requirements and media compatibility. Polypac’s production uses industry-leading molding and testing equipment to maintain tight tolerances and consistent surface finishes.

Performance & Applications

Designed for high-temperature cylinders, steam applications, injection molding and heavy industrial hydraulics, our high temperature piston seal designs withstand wide thermal excursions and high differential pressures. Benefits include low friction, extended service life, minimal wear, and superior sealing under thermal expansion—critical for performance-driven OEMs and maintenance teams.

Custom Solutions & Quality Assurance

Polypac’s custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of manufacturing space. We offer tailored high temperature piston seal designs, rapid prototyping and collaborative R&D through long-term partnerships with universities and labs. Comprehensive testing—hardness, extrusion resistance, thermal aging and dimensional inspection—ensures each seal meets your specification.

Why Choose Polypac

Since 2008, Polypac has specialized in sealing material development and customized sealing solutions. Our commitment to innovation, quality control and customer-focused manufacturing makes Polypac the preferred supplier for high temperature piston seal needs. Contact us for application reviews, material recommendations and fast OEM production runs to optimize uptime and reduce lifecycle costs.

high temperature piston seal Display

FAQ:

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.

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.

What is the difference between a static seal and a dynamic seal?

A Static Seal is used between two surfaces that do not move relative to each other (e.g., pipe flanges, end caps). O-rings and gaskets are common static seals. A Dynamic Seal is used between surfaces that do move (e.g., piston and cylinder, rotating shaft). Rod seals, piston seals, and rotary shaft seals are designed for this purpose.

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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Polypac High Temperature Piston Seal Solutions
Overview
Materials & Technology
Performance & Applications
Custom Solutions & Quality Assurance
Why Choose Polypac
high temperature piston seal Display

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