Polypac Fluorocarbon O-Ring Kits (FKM) — Reliable Sealing for Harsh Conditions

Polypac Fluorocarbon O-Ring Kits (FKM) deliver durable chemical- and heat-resistant sealing for hydraulic, oil and industrial applications. Custom sizes, tested quality, and fast delivery from an experienced seal manufacturer.
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Product Details

Product Overview — Fluorocarbon O-Ring Kits by Polypac

Polypac Fluorocarbon O-Ring Kits (FKM) are designed for demanding environments where chemical resistance, high temperature stability and long service life are essential. Each kit includes a range of precision-molded FKM O-rings suitable for hydraulic systems, oil seals, pumps, valves and industrial equipment.

Why Choose Fluorocarbon (FKM) O-Rings?

  • Excellent chemical resistance to fuels, oils, and many aggressive fluids.
  • High temperature resistance up to 200–250°C depending on compound.
  • Low compression set for reliable sealing over long periods.
  • Broad compatibility with hydraulic and oil applications.

Kit Contents and Custom Options

Each Fluorocarbon O-Ring Kit is available in common sizes and can be customized to your specification. Options include cross-section sizes, hardness (durometer), and special formulations for extreme environments. Polypac supports OEM and repair kits with tailored part selection.

Practical Benefits for Your Operations

Polypac FKM O-ring kits reduce downtime and maintenance costs by providing reliable sealing performance in oil, fuel and hydraulic systems. The kits are ideal for service technicians and maintenance teams who need ready access to quality O-rings that work under pressure and heat.

Trusted Manufacturing and Testing

Founded in 2008, Polypac is a scientific and technical hydraulic seal manufacturer with an 8,000 m² production facility and over 10,000 m² site. We use advanced production and testing equipment and partner with universities and research institutions to develop durable sealing materials.

Applications

Suitable for hydraulic seals, oil seals, valves, pumps, automotive, petrochemical and industrial equipment where fluorocarbon O-rings are required.

Get Started

Request a quote or custom kit from Polypac to match your operating conditions. Our technical team will help select the right FKM compound and sizes to maximize seal performance and service life.

Product Image

  • ORing-Kit 007 Cat-A

FAQ

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 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.
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 or concern, please contact us.

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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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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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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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