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Polypac O Ring Kits — Reliable O-rings for Every Seal Need

Polypac O Ring Kits offer durable, oil- and chemical-resistant O-rings (NBR, FKM, EPDM, silicone, FFKM) in practical kits or custom sets. Fast maintenance, reduced downtime, and expert support from an experienced seal manufacturer.

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Product Description

Polypac O Ring Kits — Reliable O-rings for Every Seal Need

Polypac O Ring Kits deliver dependable sealing solutions for hydraulic, automotive, and industrial applications. As a leading seal manufacturer and oil seal supplier, Polypac combines advanced production, strict testing, and flexible customization to ensure you get the right O-rings for the job.

Why choose our O Ring Kits?

Each kit is assembled to be practical and user-friendly. Kits include a selection of common sizes and materials—NBR, FKM (Viton), EPDM, silicone, and high-performance FFKM—so you can repair and maintain equipment quickly. Our O-rings are durable, resistant to oil and chemicals, and designed to reduce leaks and downtime. Polypac values your needs and provides clear guidance to select the best material and size.

Materials & quality

Founded in 2008, Polypac began with filled PTFE and expanded into custom rubber ring and O-ring production. Our factory covers over 10,000 m² with 8,000 m² of production space and advanced testing equipment. Close cooperation with universities and research institutes allows us to control material formulas and ensure consistent quality across NBR, FKM, silicone, EPDM, and FFKM options.

Applications & benefits

Polypac O Ring Kits are ideal for hydraulic systems, pumps, valves, compressors, and general maintenance. Key benefits include:

Wide material selection for oil, heat, and chemical resistance
Pre-packaged sizes for quick repairs and reduced downtime
Custom O-rings and kits tailored to special working conditions
Industry-tested durability for longer service life and fewer replacements

Ordering & customization

We offer ready-made kits and fully customized O-ring solutions. Contact Polypac for technical advice, custom rubber ring specifications, or fast delivery options. Our team supports you from selection to after-sales, ensuring your equipment stays sealed and reliable.

Choose Polypac O Ring Kits for reliable sealing, fast maintenance, and expert support—keeping your systems running safely and efficiently.

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Frequently Asked Questions

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.

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.

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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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