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Polypac Pumping Effect Solution — Advanced Hydraulic Seals & O-rings

Polypac Pumping Effect Solution — Reliable Sealing for Demanding Hydraulic Systems

Overview: What is our Pumping Effect Solution?

Polypac’s Pumping Effect Solution addresses seal-related fluid migration, aeration and instability in reciprocating and dynamic hydraulic systems. Combining engineered geometries and advanced materials, our seals reduce the pumping effect that causes pressure spikes, leakage and premature wear—delivering smoother operation, longer service life and lower maintenance costs.

Materials & Technology

We leverage decades of material expertise—from bronze, carbon and MoS2-filled PTFE to elastomers like NBR, FKM, EPDM, silicone and high-performance FFKM. Our filled PTFE compounds provide low friction and wear resistance, while tailored elastomeric elements ensure compatibility with hydraulic fluids and extreme temperatures. Each Pumping Effect Solution is optimized to balance sealing force and dynamic response for minimal fluid displacement.

Customization for Special Working Conditions

With an 8,000 m² production facility and over 10,000 m² site, Polypac offers bespoke O-rings, rubber rings and complex seal profiles. We collaborate with universities and research institutes to develop custom designs for high-frequency reciprocation, vacuum systems, high-pressure hydraulics and contaminated environments—ensuring your Pumping Effect Solution fits the exact duty cycle and assembly constraints.

Quality Assurance & Testing

Our production and testing equipment rank among the industry’s most advanced. Each seal undergoes rigorous dimensional, material and performance testing—wear cycles, pressure stability and fluid compatibility—to validate resistance to the pumping effect under real-world conditions. OEM and aftermarket traceability and documentation are available on request.

Why Choose Polypac?

Founded in 2008, Polypac combines scientific research with manufacturing scale to deliver high-performance Pumping Effect Solutions. We reduce downtime, extend seal life and improve system stability while offering competitive lead times and technical support. Contact Polypac to evaluate seal upgrades or custom sealing programs tailored to your hydraulic challenges.

Pumping Effect Solution Display

FAQ:

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.

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 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.

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.

Table of Contents

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Polypac Pumping Effect Solution — Reliable Sealing for Demanding Hydraulic Systems
Overview: What is our Pumping Effect Solution?
Materials & Technology
Customization for Special Working Conditions
Quality Assurance & Testing
Why Choose Polypac?
Pumping Effect Solution Display

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