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Polypac POM BRT Rings — Reliable, Low-Friction Hydraulic Seals

Polypac POM BRT Rings are durable, low-friction hydraulic seals designed for long service life in demanding conditions. Manufactured with precision and custom options, they offer excellent wear resistance and reliable sealing for cylinders, pumps, and heavy equipment.

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Product Information

Product Overview

Polypac POM BRT Rings are precision-engineered hydraulic seals made from high-performance POM (acetal) material. Designed for smooth operation and long-term durability, these rings reduce friction and resist wear in hydraulic cylinders, pumps, valves, and a wide range of industrial equipment.

Features and Benefits

Low friction surface for smoother motion and lower energy loss.
Excellent wear resistance, extending service intervals and reducing downtime.
Stable dimensional performance across temperature ranges.
Compatible with common hydraulic fluids; resistant to abrasion and mechanical stress.
Available in standard sizes and custom dimensions to fit your application precisely.

Practical Value

POM BRT Rings provide immediate, tangible benefits: improved equipment efficiency, fewer seal replacements, and lower maintenance costs. Their low-friction profile helps protect mating components, while predictable wear behavior simplifies maintenance planning.

Applications

Ideal for hydraulic cylinders, pistons, pumps, valves, and mobile or industrial machinery. Whether you operate construction equipment, agricultural machines, or manufacturing systems, POM BRT Rings deliver reliable sealing under continuous or heavy-duty cycles.

Why Choose Polypac

Polypac is a scientific and technical hydraulic seal manufacturer specializing in sealing materials and customized solutions for special working conditions. Our factory spans over 10,000 m² with 8,000 m² of production space and advanced testing equipment. Since 2008, we have grown from producing filled PTFE seals to offering a broad range of O-rings and rubber components in NBR, FKM, silicone, EPDM, and FFKM.

Customization & Support

We prioritize your needs: fast prototyping, tailored compound selection, and dedicated technical support. Polypac collaborates with universities and research institutions to ensure reliable product performance. Contact us for samples, drawings, or application guidance — we treat every customer as a partner in achieving optimal sealing performance.

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Q&A

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 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.

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.

If you have any other questions, please write email to us or call us , we will reply you ASAP.

Get in Touch

PRODUCTS

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac Industrial Technology Co.,Ltd

+86 189 2463 6168

rose@dmsseals.com

No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.

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