Polypac O-Ring Assortment — Reliable Seals for Hydraulic & Oil Systems

Polypac O-Ring Assortment provides durable, ready-to-use O-rings in NBR, FKM, silicone, EPDM and FFKM. Ideal for hydraulic, pneumatic and oil sealing applications. Custom sizes, strict quality control, and fast supply from an experienced seal manufacturer.
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Product Details

Product Overview

Polypac O-Ring Assortment delivers a practical collection of O-rings designed for hydraulic, pneumatic and oil systems. As a scientific and technical hydraulic seal manufacturer and oil seal supplier, Polypac offers ready-to-use assortments that save time and reduce downtime for maintenance teams and OEMs.

What's Included

Each assortment can include common sizes and materials such as NBR, FKM (Viton), silicone, EPDM and high-performance FFKM. Options for custom rubber ring mixes and special sizes are available to match your application needs.

Key Benefits

  • Wide material choice: suitable for oil, fuel, high temperature and chemical exposure.
  • High quality: produced in Polypac’s advanced factory with strict testing and traceability.
  • Convenience: saves ordering time and ensures spare parts are on hand during repairs.
  • Customization: custom sizes and compounds for special working conditions.

Applications

Perfect for hydraulic cylinders, valves, pumps, connectors and general maintenance kits. The assortment supports both industrial and mobile equipment where reliable sealing matters.

Why Choose Polypac

Founded in 2008, Polypac combines decades of seal development experience with an 8,000 m² production space and advanced testing equipment. We work closely with universities and research institutes to develop sealing material solutions, including filled PTFE lines and modern elastomers. Choosing Polypac means working with a trusted oil seal supplier that values quality, performance and service.

Ordering & Customization

Assortments are available off-the-shelf or tailored to your specifications. Contact Polypac for material recommendations (NBR, FKM, silicone, EPDM, FFKM), size lists, and lead times. Our team can provide technical support to ensure the right O-ring choice for your hydraulic or oil sealing needs.

Ensure reliable sealing and reduce downtime with Polypac’s O-Ring Assortment — engineered for performance and backed by proven manufacturing expertise.

Detailed display

  • Kit005-8
  • kit005-1
  • Kit005-6

Frequently Asked Questions

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.
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 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.

If you have any questions about our goods or services, please feel free to contact us.

Get in Touch
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Polypac Industrial Technology Co.,Ltd
No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.
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Tags
BRT Style PTFE Seal
BRT Style PTFE Seal
high temperature piston seal
high temperature piston seal
Bidirectional Hydraulic Seal
Bidirectional Hydraulic Seal
PHE Series Seal Kit
PHE Series Seal Kit
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Whether you need product details, technical support, or a custom solution, we’re here to assist.

Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

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How Can We Help You?

Whether you need product details, technical support, or a custom solution, we’re here to assist.

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Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

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