PGY Piston Seal: Durable Performance for Pneumatic Cylinders

The PGY piston seal is a high-performance packing seal engineered exclusively for piston applications in pneumatic cylinders and actuators. Manufactured to SAKAGAMI standards, this wear-resistant sealing solution delivers reliable, long-lasting performance across a wide range of operating conditions — from lubricated and non-lubricated to completely dry air environments.

Optimized Design for Long Service Life

The PGY seal features a specially formulated profile that prioritizes abrasion resistance and maintains consistent sealing contact against the cylinder bore surface. Its robust lip geometry ensures stable sealing even during pressure fluctuations, making it particularly suitable for standard cylinder applications where extended service life and minimal maintenance are critical. The seal’s design effectively prevents bypass leakage while allowing smooth piston movement with controlled friction.

Material Options for Versatile Applications

The PGY series is available in two primary material grades to accommodate different operating environments:

  • RN713 (Standard NBR): Temperature range -15°C to +60°C, ideal for general-purpose pneumatic applications with standard temperature requirements

  • RF905 (Heat-Resistant FKM): Temperature range -5°C to +150°C, specifically developed for high-temperature pneumatic systems

Key Technical Specifications:

Parameter Specification
Max Pressure ≤ 1.0 MPa (10 bar)
Max Speed 1 m/s
Media Compatibility Compressed air

Primary Applications & Sizes

PGY seals are widely used in standard pneumatic cylinders, industrial automation equipment, packaging machinery, and assembly line systems where dependable piston sealing is essential.

Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/