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Polypac O-Ring Kits — Precision Seals for Hydraulic & Industrial Use

Polypac O-Ring Kits — Reliable Seals for Every Application

Polypac offers professionally engineered O-Ring Kits designed to meet demanding hydraulic, oil seal and industrial sealing needs. Our kits combine broad material options, precision manufacturing and quality verification to ensure consistent performance across temperature, pressure and chemical exposure scenarios. Ideal for maintenance teams, OEMs and service centers, Polypac O-Ring Kits simplify stocking and reduce downtime.

Comprehensive Materials & Kit Options

Choose from NBR, FKM (Viton®-class), silicone, EPDM and high-performance FFKM formulations to match fluid compatibility and temperature requirements. Kits are available in standard AS568 sizes and metric dimensions, custom cut lengths, and mixed assortments tailored to your equipment. Each kit can be packaged by size, material, or application to streamline repairs and inventory management.

Precision Manufacturing & Quality Assurance

Our custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of production space, outfitted with advanced molding and testing equipment. Polypac enforces strict dimensional control, hardness verification and compound testing to meet industry standards. Long-term collaborations with universities and research institutions ensure we stay at the leading edge of material science and seal reliability.

Customized Solutions for Special Working Conditions

From extreme temperatures and aggressive chemicals to high-pressure hydraulic systems, Polypac develops tailored sealing solutions. We offer bespoke compound development, filled PTFE variants and specialty coatings to extend seal life in harsh environments. Our engineering team supports material selection, failure analysis and application-specific design adjustments.

Why Choose Polypac O-Ring Kits

Polypac combines manufacturing scale, technical depth and responsive service. Our O-Ring Kits reduce installation errors, shorten repair time and lower overall maintenance costs. With global supply capabilities and ISO-level quality practices, we deliver dependable sealing solutions that protect equipment and maximize uptime.

O-Ring Kits Display

FAQ:

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.

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.

Why did my O-ring fail prematurely?

Common causes of O-ring failure include: Chemical Incompatibility: Swelling, softening, or cracking due to fluid exposure. Improper Sizing: Using an incorrect size leads to over-compression or inadequate sealing force. Abrasion: Wear and tear from rough surface finishes or contaminated fluid. Extrusion: The seal is forced into the gap between metal parts under high pressure. Installation Damage: Nicks, cuts, or twists during assembly.

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.

Table of Contents

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Polypac O-Ring Kits — Reliable Seals for Every Application
Comprehensive Materials & Kit Options
Precision Manufacturing & Quality Assurance
Customized Solutions for Special Working Conditions
Why Choose Polypac O-Ring Kits
O-Ring Kits Display

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