dbde24e1-4012-47b6-8db4-e89ee4ca5a70 - Polypac

English

Turkish

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac Hydraulic Seal Kit — Trusted Custom Seals & O-Rings

Polypac Hydraulic Seal Kit — Reliable Sealing Solutions

Why Choose Polypac Hydraulic Seal Kits?

Polypac is a scientific and technical hydraulic seal manufacturer with extensive experience in seal production, sealing material development, and tailored solutions. Founded in 2008, our large-scale custom rubber ring and O-ring factory combines advanced production and testing equipment with close collaboration with universities and research institutes to ensure every Hydraulic Seal Kit meets demanding performance expectations.

Comprehensive Product Range

Our Hydraulic Seal Kit catalog covers filled PTFE seals (bronze-filled, carbon-filled, graphite, MoS2-filled, glass-filled) and a broad selection of elastomers including NBR, FKM, silicone, EPDM, and FFKM. Each kit is assembled to provide piston seals, rod seals, wipers, guide rings, and backup rings suited to pressure, temperature, and chemical environments.

Customization for Special Working Conditions

Polypac specializes in customized sealing solutions for special working conditions. Whether you need high-temperature resistance, aggressive fluid compatibility, low friction, or long-cycle durability, our engineers design Hydraulic Seal Kits with optimized materials, profiles, and tolerances for your machine specifications.

Quality Control and Performance Testing

Quality is engineered into every kit. Our factory spans over 10,000 square meters and uses industry-leading production and testing equipment to validate wear, leakage, compression set, and dynamic performance. Long-term partnerships with research institutions support continual material innovation and rigorous validation for real-world reliability.

Applications and Operational Benefits

Polypac Hydraulic Seal Kits serve construction, agriculture, aerospace, offshore, and industrial hydraulics. Benefits include reduced leakage, extended cylinder life, lower maintenance costs, and simplified field replacement with complete, application-matched kits that minimize downtime.

How to Order and Technical Support

Ordering is fast and flexible: specify dimensions, material preferences, and working conditions for a tailored Hydraulic Seal Kit. Our technical team provides rapid consultation, sample evaluation, and manufacturing scalability to meet production timelines. Contact Polypac for quotes, certifications, and custom sealing project partnerships.

Hydraulic Seal Kit Display

FAQ:

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.

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 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 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

≡

Polypac Hydraulic Seal Kit — Reliable Sealing Solutions
Why Choose Polypac Hydraulic Seal Kits?
Comprehensive Product Range
Customization for Special Working Conditions
Quality Control and Performance Testing
Applications and Operational Benefits
How to Order and Technical Support
Hydraulic Seal Kit Display

Related Blog

What are common inspection and maintenance tips for shaft seals?

This guide provides essential information on rotating shaft seals, including their applications, common failure causes, inspection and maintenance tips, and how to select the right seal material. It also highlights Polypac's advantages in seal manufacturing.

What are common inspection and maintenance tips for shaft seals?

FKM: The Complete Guide to High-Temperature & Chemical-Resistant Sealing | Polypac

Discover Polypac’s comprehensive guide to FKM seals, designed for high temperature and chemical resistant applications. Learn how FKM provides durable, reliable sealing solutions to enhance performance and safety in demanding industrial environments.

FKM: The Complete Guide to High-Temperature & Chemical-Resistant Sealing | Polypac

How to install a rotating shaft seal step-by-step?

This guide provides essential information on rotating shaft seals, including installation steps, maintenance tips, and common troubleshooting techniques, tailored for professionals in the seal manufacturing industry.

How to install a rotating shaft seal step-by-step?

The Ultimate Guide to Rod Seals: Types, Selection, Failures, & Future Trends in 2026

A comprehensive guide for engineers and maintenance professionals on rod seals. Covers types, material selection, failure analysis, installation best practices according to ISO standards, and future industry trends.

The Ultimate Guide to Rod Seals: Types, Selection, Failures, & Future Trends in 2026