O-Ring FPM 109x5.3 FKM

Applications

The O-Ring FPM 109x5.3 FKM is a high-performance rubber sealing ring designed for demanding industrial applications where resistance to temperature, chemicals, and aggressive media is essential. It is used as a static and dynamic sealing element in hydraulic and pneumatic systems, oil and fuel circuits, process installations, and mechanical assemblies.

Manufactured from FPM (FKM) fluoroelastomer, commonly referred to in industry as Viton® type, this O-Ring maintains sealing integrity in environments where standard elastomers such as NBR or EPDM are insufficient. Typical applications include industrial machinery, power generation, chemical processing, automotive systems, and maintenance operations.

Advantages

• FPM / FKM material (Viton® type) with excellent chemical and thermal resistance

• High resistance to oils, fuels, lubricants, hydraulic fluids, and many chemicals

• Stable elasticity and dimensional accuracy during long-term operation

• Precise 109x5.3 dimensions ensuring reliable groove fit

• Suitable for technical sealing in hydraulic and pneumatic applications

Technical Data

• Product type: O-Ring

• Material: FPM (FKM, Viton® type)

• Inner diameter: 109 mm

• Cross-section: 5.3 mm

• Color: brown

• Sealing type: static and dynamic

Main Description

The O-Ring FPM 109x5.3 FKM is a professional technical sealing component engineered for applications requiring long service life and high resistance to harsh operating conditions. Produced from FPM fluoroelastomer (FKM), also known as Viton® type, it provides reliable sealing performance in contact with oils, fuels, hydraulic fluids, and chemically aggressive media.

This sealing ring is widely used where conventional rubber gaskets fail due to temperature or chemical exposure. The material retains elasticity and sealing force even during prolonged operation at elevated temperatures, making it suitable for critical industrial systems and continuous-duty applications.

With its accurately manufactured 109x5.3 dimensions, the O-Ring ensures effective sealing in flanges, cylindrical housings, and precision grooves. It is commonly applied as an industrial seal in hydraulic and pneumatic installations, process equipment, and mechanical assemblies where consistent performance and material stability are required.

For B2B customers, maintenance teams, and industrial distributors, this O-Ring represents a dependable solution combining high durability, predictable behavior, and compatibility with demanding technical environments.

FAQ

Is FPM the same as Viton®?
Yes. Viton® is a trade name, while FPM/FKM is the standardized material designation for the same type of fluoroelastomer.

What is the typical temperature range of an FPM O-Ring?
Generally from about -20°C up to +200°C, depending on operating conditions and media.

Can this O-Ring be used in hydraulic systems?
Yes, it is well suited for hydraulic and pneumatic sealing, especially at elevated temperatures.

Is it suitable for dynamic sealing?
Yes, when correctly installed and used within appropriate operating parameters.

Why choose FPM instead of NBR?
FPM offers significantly higher resistance to heat, fuels, oils, and chemicals compared to NBR.