FPM O-Ring 80x3.5 (FKM, Viton)

Product Description

The FPM O-Ring 80x3.5 (FKM, Viton) is a high-performance industrial sealing ring engineered for demanding environments where chemical resistance, thermal stability, and long-lasting durability are critical. Manufactured from premium Fluoroelastomer (commonly known as FKM or Viton material), this rubber gasket delivers superior service in applications exposed to oils, fuels, aggressive chemicals, high temperatures, and mechanical stress.

This O-Ring is widely used as a static or dynamic seal across industries such as hydraulics, pneumatics, automotive, chemical processing, and heavy machinery. Its precise 80x3.5 dimensions ensure a secure fit in grooves and housings, creating a reliable fluid-tight barrier that minimizes leakage and maintains system performance over extended operational cycles. Compared to standard elastomers such as NBR, the FKM compound offers significantly improved resistance to high temperatures and a broader range of chemicals, delivering dependable sealing where conventional rubber seals fail.

The FPM O-Ring is ideal for industrial sealing applications including valve seats, cylinder end caps, pump housings, compressors, and fuel system components. Engineered for both oil resistance and chemical compatibility, it meets the stringent demands of modern industrial equipment, maintaining elasticity and structural integrity even after prolonged exposure to heat and aggressive media. This high durability reduces maintenance frequency, lowers total cost of ownership, and supports continuous operation in critical systems.

Technical Specifications

• Material: FPM (Fluoroelastomer / Viton)

• Inner Diameter: 80 mm

• Cross-Section: 3.5 mm

• Seal Type: O-Ring / Rubber gasket / Industrial sealing ring

• Temperature Resistance: Elevated thermal stability typical of FKM materials

• Chemical Resistance: Excellent against oils, fuels, acids, bases, and solvents

• Applications: Industrial machinery, hydraulic & pneumatic systems, chemical processing, automotive equipment

• Key Benefits: High durability, chemical & oil resistance, broad temperature tolerance, enhanced service life

FAQ - Frequently Asked Questions

1. What is the FPM O-Ring 80x3.5 used for?
This O-Ring is used as a general sealing element in hydraulic and pneumatic systems, fuel lines, pumps, valves, and industrial equipment requiring resistance to heat, chemicals, and mechanical stress.

2. Why is FKM (Viton) material preferred?
FKM/Viton offers superior chemical and thermal resistance compared to standard elastomers. This makes it suitable for aggressive environments involving oils, fuels, acids, and high operating temperatures.

3. What is the meaning of 80x3.5 for O-Rings?
It indicates the inner diameter (80 mm) and cross-section thickness (3.5 mm) of the O-Ring, essential for selecting the correct size for grooves and housings.

4. Can this O-Ring handle high temperatures?
Yes. FKM materials are designed to perform reliably in elevated temperature conditions where many other elastomers would degrade or fail.

5. How long do FPM O-Rings last?
Thanks to their resistance to heat, chemicals, and aging, FPM O-Rings exhibit an extended service life compared to conventional rubber seals, reducing replacement frequency.