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Polypac Pump Rod Seal Product Category

Polypac Pump Rod Seal Solutions

Why Choose Polypac Pump Rod Seal?

Polypac specializes in high-performance Pump Rod Seal products engineered for demanding hydraulic and oil pump applications. Founded in 2008, we combine scientific R&D with large-scale manufacturing to deliver seals that resist extrusion, chemical attack, and thermal stress. Our seals are designed for longevity, low friction, and reliable containment in reciprocating environments.

Advanced Materials and Manufacturing

We manufacture Pump Rod Seal components using filled PTFE variants (bronze, carbon, graphite, MoS₂, glass) and a wide range of elastomers including NBR, FKM, silicone, EPDM, and FFKM. Our 10,000+ m² facility and industry-leading production and testing equipment ensure consistent quality, tight tolerances, and traceability—critical factors for sealing rod assemblies in pumps and hydraulic cylinders.

Customization for Special Working Conditions

Polypac provides tailored Pump Rod Seal solutions for high temperature, high pressure, abrasive, or chemically aggressive environments. Working closely with universities and research institutions, we develop custom compounds and geometries to optimize sealing life and reduce maintenance intervals. Custom O-rings, rubber rings, and PTFE profiles can be engineered to your unique specifications.

Performance Benefits

Our Pump Rod Seal range offers low friction for smoother rod movement, improved wear resistance for extended service life, and superior sealing integrity to prevent leakage. Combined with rigorous testing protocols, these benefits translate to increased equipment uptime, reduced fluid loss, and lower total cost of ownership for OEMs and maintenance teams.

Applications and Industries

Polypac Pump Rod Seal products serve oil & gas pumps, hydraulic power units, petrochemical transfer systems, and industrial reciprocating pumps. Whether retrofitting existing pumps or designing new equipment, our seals meet performance demands across heavy industry, marine, and mobile hydraulics.

Contact and Supply Capabilities

As one of China’s leading seal manufacturers, Polypac supports volume production, quick prototyping, and global export. Contact our technical team for material selection, drawings review, and sample trials to ensure the right Pump Rod Seal solution for your application.

Pump Rod Seal Display

FAQ:

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.

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.

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.

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.

Table of Contents

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Polypac Pump Rod Seal Solutions
Why Choose Polypac Pump Rod Seal?
Advanced Materials and Manufacturing
Customization for Special Working Conditions
Performance Benefits
Applications and Industries
Contact and Supply Capabilities
Pump Rod Seal Display

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