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Compressor Seals - Polypac Custom PTFE & Elastomer Seals

Compressor Seals by Polypac: Precision Sealing for High-Performance Compressors

Why Polypac Compressor Seals?

Why Polypac Compressor Seals? Polypac combines decades of sealing expertise with industry-leading production to deliver compressor seals that reduce leakage, minimize friction, and extend service life. As a scientific and technical hydraulic seal manufacturer and oil seal supplier, Polypac supports OEMs and maintenance teams with engineered sealing solutions tailored to compressor speed, pressure and media.

Materials & Customization

Materials & Customization are core to our offering: we supply compressor seals in advanced filled PTFE variants including bronze-filled PTFE, carbon-filled PTFE, graphite PTFE, MoS2-filled PTFE, and glass-filled PTFE, plus elastomers such as NBR, FKM, silicone, EPDM and FFKM. Our custom rubber ring and O-ring factory spans over 10,000 square meters with 8,000 square meters of factory space, enabling fast prototyping, bespoke geometries and material formulations for special working conditions.

Performance & Testing

Performance & Testing ensure reliability: Polypac's production and testing equipment are among the most advanced in the industry, allowing precise dimensional control, hardness verification and endurance testing under simulated compressor environments. We maintain long-term cooperation with universities and research institutions to validate materials, improve wear resistance and optimize dynamic sealing performance for Compressor Seals.

Applications & Industries

Applications & Industries range from air compressors and refrigeration units to natural gas, petrochemical, and power-generation compressors. Polypac Compressor Seals perform in high-speed, high-pressure and extreme-temperature scenarios, offering material choices and seal designs tuned for lubrication regimes, gas compatibility and contamination resilience.

Ordering & Technical Support

Ordering & Technical Support is simple: Polypac provides full technical consultation, samples, custom tooling and small to large volume production runs. Our experienced engineers support material selection, drawing reviews and testing specifications to ensure your Compressor Seals meet performance targets. Contact Polypac for specifications, certifications and a tailored sealing solution built to last.

FAQ:

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.

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.

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.

How important is surface finish on the metal parts that contact the seal?

Extremely important. A rough surface will abrade and wear out the seal quickly, causing leaks. A finish that is too smooth can prevent a lubricating film from forming. A typical recommended surface finish for dynamic applications is 0.2 to 0.8 μm (8-32 μin) Ra.

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.

Table of Contents

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Compressor Seals by Polypac: Precision Sealing for High-Performance Compressors
Why Polypac Compressor Seals?
Materials & Customization
Performance & Testing
Applications & Industries
Ordering & Technical Support

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