Polypac Industrial O-Ring Kits — Reliable Sealing Solutions

Polypac Industrial O-Ring Kits provide durable, tested O-rings in NBR, FKM, silicone, EPDM and FFKM for hydraulic and industrial applications. Custom kits for special conditions from a trusted seal manufacturer.
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Product Information

Polypac Industrial O-Ring Kits — Trusted Sealing Performance

Polypac Industrial O-Ring Kits deliver reliable, ready-to-use sealing solutions for hydraulics, pneumatic systems, valves, pumps and general industrial maintenance. Designed for durability and ease of use, each kit contains a selection of commonly used sizes and materials to meet daily repair and preventive maintenance needs.

Why choose Polypac O-Ring Kits?

Polypac is a specialist hydraulic seal manufacturer and oil seal supplier with over a decade of focused experience. Our custom rubber ring and O-ring factory spans more than 10,000 square meters and uses advanced production and testing equipment. We work closely with universities and research institutions to develop sealing materials and provide customized sealing solutions for special working conditions.

Materials and compatibility

Each Industrial O-Ring Kit can include O-rings in:

  • NBR (Nitrile): excellent for oil and hydraulic fluids
  • FKM (Viton): high temperature and chemical resistance
  • Silicone: wide temperature range and flexibility
  • EPDM: good for steam, water and certain chemicals
  • FFKM: chemical resistance for extreme conditions

We select materials based on application needs so you get the right O-rings for temperature, pressure and chemical exposure.

Quality, testing and customization

Polypac combines advanced testing capabilities with experienced engineering to ensure seal reliability. Our production lines and quality control processes are built to minimize defects and extend component life. For special working conditions, we offer custom O-rings and tailored kits, plus technical guidance on material selection and installation tips.

Applications and benefits

Polypac Industrial O-Ring Kits are ideal for field service teams, maintenance departments and OEMs. Benefits include reduced downtime, easier inventory management, and confidence that seals will perform under hydraulic and industrial stresses. With a background in filled PTFE products and an expanded portfolio of elastomers, Polypac is positioned to solve complex sealing challenges.

Choose Polypac for tested, professional sealing solutions—customizable, reliable and ready when you need them.

Product Image

  • ORing-Kit 009 Hyud

Q&A

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.
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 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.
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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
Bidirectional Piston Seal
Bidirectional Piston Seal
Low-Profile Seal Design
Low-Profile Seal Design
rod seal suppliers
rod seal suppliers
high pressure hydraulic rod seal
high pressure hydraulic rod seal
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With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

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

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