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Nitrile Piston Seal Solutions by Polypac

Nitrile Piston Seal Solutions by Polypac

Reliable Materials and Performance

Polypac's Nitrile Piston Seal (NBR) combines proven oil resistance, low compression set, and excellent abrasion properties to ensure long life in hydraulic cylinders. Ideal for mineral oil and many synthetic fluids, our Nitrile Piston Seal delivers consistent sealing performance across typical hydraulic temperatures (-40°C to +120°C) and dynamic loads.

Precision Manufacturing and Advanced Testing

Manufactured in our 10,000+ m² facility with 8,000 m² of production space, Polypac uses industry-leading equipment to produce tight-tolerance Nitrile Piston Seal parts. Every batch undergoes rigorous dimensional inspection, hardness testing, and simulated life-cycle trials to guarantee reliability in critical applications.

Custom Design for Special Working Conditions

Whether you need bespoke cross-sections, compound blends, or reinforced geometries, Polypac engineers custom Nitrile Piston Seal solutions to match pressure, speed, and media requirements. We collaborate with universities and research institutes to optimize formulations for extreme wear, temperature, or chemical exposure.

Comprehensive Product Range

Beyond piston seals, Polypac supplies compatible components—rod seals, wipers, and secondary O-rings in materials such as FKM, EPDM, silicone, and FFKM—enabling full-system sealing strategies that reduce leakage and downtime. Our experience with PTFE-filled composites supports hybrid sealing for demanding environments.

Applications and Industry Use

Nitrile Piston Seal solutions from Polypac serve mobile hydraulics, industrial presses, construction equipment, and marine systems. These seals are optimized for frequent cycling and high-pressure conditions where consistent cylinder performance is critical.

Why Choose Polypac

Founded in 2008, Polypac combines decades of sealing expertise with large-scale manufacturing, fast prototyping, and OEM service. We offer material development, sample runs, and volume production with competitive lead times—backed by technical support to ensure the Nitrile Piston Seal meets your exact specifications.

Get Started

Contact Polypac for datasheets, CAD models, or custom quotations. Let our engineering team recommend the optimal Nitrile Piston Seal configuration to extend service life and improve hydraulic efficiency.

Nitrile Piston Seal Display

FAQ:

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.

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.

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.

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.

Table of Contents

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Nitrile Piston Seal Solutions by Polypac
Reliable Materials and Performance
Precision Manufacturing and Advanced Testing
Custom Design for Special Working Conditions
Comprehensive Product Range
Applications and Industry Use
Why Choose Polypac
Get Started
Nitrile Piston Seal Display

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