Polypac O-Ring Activated Seal Solutions

O-Ring Activated Seal Solutions by Polypac

Why choose an O-Ring Activated Seal?

O-Ring Activated Seal technology combines the simplicity of an O-ring with engineered sealing profiles to deliver reliable dynamic and static sealing across hydraulic, pneumatic, and rotary applications. Polypac’s O-Ring Activated Seal products optimize pressure-activated sealing, reduce leakage paths, and extend service life in harsh environments.

Materials tailored to performance

Polypac manufactures O-Ring Activated Seal components in a wide range of elastomers and composites — NBR, FKM (Viton®), silicone, EPDM, and High Quality FFKM — plus PTFE variants including bronze-, carbon-, graphite-, MoS2-, and glass-filled PTFE. Material selection is driven by temperature, media compatibility, wear resistance and chemical resistance to ensure the best fit for your application.

Precision manufacturing & testing

Our custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of production space and industry-leading test equipment. Each O-Ring Activated Seal undergoes dimensional inspection, hardness verification, compression set testing, and leakage performance checks to meet stringent quality standards.

Customization for special working conditions

Polypac excels at tailored sealing solutions — from extreme temperatures and aggressive hydraulic fluids to high-speed rotary shafts and heavy-duty reciprocating pistons. We collaborate with customers and research partners to modify geometries, shore hardness, and filler systems for optimized sealing under your specific conditions.

Design guidance & installation best practices

Proper groove design, surface finish, and installation torque are critical for O-Ring Activated Seal performance. Polypac provides engineering support, CAD drawings, and installation recommendations to prevent extrusion, ensure uniform compression, and maximize service life.

Proven R&D and industry partnerships

Founded in 2008, Polypac has long-term cooperation with universities and research institutions at home and abroad. Our R&D expertise in sealing materials and PTFE-filled technologies supports continuous product improvement and compliance with demanding industry requirements.

Partner with Polypac

Choose Polypac for engineered O-Ring Activated Seal solutions that combine material science, advanced manufacturing and hands-on technical support. Contact us for samples, custom quotes, and application-specific testing to secure leak-free reliability.

O-Ring Activated Seal Display

FAQ:
How do I choose the right material for my sealing application?

Material selection depends on four key factors: Media: What fluid or gas will the seal contact? (e.g., petroleum oil, water, chemicals, steam) Temperature: What is the minimum and maximum operating temperature? Pressure: What is the system's operating pressure? Are there pressure spikes? Application: Is it a static, dynamic, or rotary seal? Example: NBR (Buna-N) is excellent for standard hydraulic oil, while FKM (Viton®) is needed for high temperatures or aggressive chemicals.

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 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.

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.

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.

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