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

English

Turkish

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac Piston Seal Kit — Durable Hydraulic Seals for Reliable Performance

Polypac Piston Seal Kit delivers precision-made hydraulic piston seals and O-rings. Available in PTFE, NBR, FKM and more, designed for long life, low friction and reliable sealing in demanding environments.

Get a free quote

Product Information

Product Overview

The Polypac Piston Seal Kit provides a complete set of piston seals and O-rings engineered for hydraulic cylinders and other piston-driven systems. Manufactured by Polypac, a specialist in seal material development and custom sealing solutions, this kit combines proven materials and tight manufacturing tolerances to deliver consistent performance and long service life.

Key Features & Benefits

High Reliability

Each seal in the kit is produced under strict quality control using advanced equipment. The result is a reliable seal that resists extrusion, wear, and leakage under pressure.

Multiple Material Options

Choose from proven materials such as filled PTFE, NBR, FKM, EPDM, silicone, and FFKM. These options allow the kit to meet requirements for temperature, chemical compatibility, and friction.

Easy to Install and Maintain

The kit includes common sizes and clear guidance for installation, making replacement fast and reducing downtime. Proper maintenance extends seal life and preserves system performance.

Materials & Compatibility

Polypac began with advanced PTFE compounds (bronze, carbon, graphite, MoS₂, glass-filled) and expanded to a wide range of elastomers. This expertise ensures each piston seal and O-ring is matched to the application—whether hydraulic oil, water-glycol, phosphate ester, or other fluids.

Typical Applications

The Piston Seal Kit is ideal for construction machinery, industrial presses, mobile hydraulics, agricultural equipment, and any system that uses piston-type actuators. It suits both standard and demanding operating conditions.

Why Choose Polypac

Polypac’s factory spans over 10,000 m² with advanced production and testing tools. Founded in 2008, the company collaborates with universities and research institutes to keep materials and designs up to date. When you choose a Polypac Piston Seal Kit, you get decades of seal development expertise and dependable quality control.

Ordering & Support

Custom sizes and special-material kits are available. Contact Polypac with your dimensions, operating pressures, and fluid type to get a tailored solution and technical support from experienced engineers.

Product Images

FAQ

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 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 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.

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.

Get In Touch With Us