O-ring FPM 8x2 mm FKM Viton - Fluoroelastomer O-ring

O-ring FPM 8x2 mm FKM Viton - Fluoroelastomer O-ring

O-ring FPM 8x2 mm FKM Viton is a fluoroelastomer sealing ring with an inside diameter of 8 mm and a cross-section of 2 mm. The O-ring has a closed circular construction and round cross-section. FKM, also referred to as FPM, is widely used in sealing technology where resistance to elevated temperatures, many oils, fuels, hydrocarbons, ozone and ageing is required.

The product is sold individually. The displayed net price is for 100 pcs.

Technical data - O-ring FPM 8x2 mm

The exact hardness, compound formulation, operating temperature range, colour and possible approvals cannot be determined from the FKM/FPM designation alone. These parameters depend on the specific elastomer compound.

What does O-ring FPM 8x2 FKM Viton mean?

The product designation can be interpreted as follows:

• O-ring - sealing ring with a circular cross-section
• 8 mm - inside diameter
• 2 mm - cross-section diameter
• FKM - designation for the fluoroelastomer material family
• FPM - designation for fluorocarbon rubber commonly encountered in European technical terminology
• Viton - trade name associated with fluoroelastomer materials

FKM, FPM and Viton are often used together when identifying fluorocarbon O-rings. However, these terms alone do not define the exact compound formulation, hardness or complete operating temperature range.

Construction of the FKM 8x2 mm O-ring

The 8x2 mm O-ring is a closed elastomeric ring with a round cross-section measuring 2 mm in diameter. Its inside diameter is 8 mm.

When installed in a correctly designed groove, the O-ring is compressed between the mating surfaces. The resulting deformation of the elastomer creates the sealing effect.

O-rings can be used for static sealing and, when the sealing system is correctly designed, in selected dynamic applications.

FKM / FPM material properties

FKM belongs to the fluoroelastomer family and is widely used in industrial sealing technology where the properties of conventional elastomers may be insufficient.

Typical characteristics of many FKM compounds include:

• very good resistance to many oils
• very good resistance to many fuels
• resistance to numerous hydrocarbons
• very good ozone resistance
• very good ageing resistance
• very good weathering resistance
• suitability for elevated-temperature applications
• resistance to a broad range of chemical media

FKM is not universally resistant to every chemical.

Material compatibility should therefore be checked against the actual operating medium, its concentration, temperature, pressure and duration of exposure.

Operating temperature of the FKM 8x2 mm O-ring

A single operating temperature range should not be assigned to this specific product solely on the basis of the FKM designation.

FKM is a material family containing different elastomer compounds. Individual formulations can differ in hardness, chemical resistance and minimum and maximum service temperatures.

Where operating temperature is a critical parameter, the technical specification of the exact FKM compound should be verified.

FKM 8x2 O-ring vs NBR 8x2 O-ring

An FKM 8x2 mm O-ring and an NBR 8x2 mm O-ring can have exactly the same inside diameter and cross-section but should not automatically be considered technically interchangeable.

FKM is commonly selected for applications requiring resistance to elevated temperatures, many fuels and hydrocarbons, ozone and ageing.

NBR is widely used for sealing applications involving many oils and lubricants, but its chemical and thermal properties differ from those of FKM.

The required elastomer should therefore be selected according to the actual operating conditions.

Alternative designations and search references

Natural designation variants for this product include:

• O-ring FPM 8x2
• O-ring FKM 8x2
• O-ring FPM 8x2 mm
• O-ring FKM 8x2 mm
• FPM O-ring 8x2 mm
• FKM O-ring 8x2 mm
• O-ring 8x2 FKM
• O-ring 8x2 FPM
• Viton O-ring 8x2
• O-ring Viton 8x2
• FKM seal 8x2 mm
• FKM sealing ring 8x2 mm

These are natural designation variants used to identify the 8x2 mm size and FKM/FPM material. They are not confirmed OEM numbers or manufacturer-specific references.

How to select an 8x2 mm O-ring

Before ordering, verify:

• 8 mm inside diameter
• 2 mm cross-section
• required elastomer material
• required compound hardness
• operating medium
• operating temperature
• system pressure
• static or dynamic operation
• groove dimensions and design
• required material approvals

The 8x2 mm dimensions alone are not sufficient to establish full interchangeability.

An FKM 8x2 mm O-ring may have the same dimensions as an NBR, EPDM or VMQ O-ring, but these elastomers have different physical, chemical and thermal properties.

Typical applications of FKM O-rings

FKM O-rings are widely used in industrial sealing applications, particularly where the sealing element may be exposed to oils, fuels, lubricants, hydrocarbons or elevated temperatures.

Typical application areas for FKM O-rings include:

• hydraulic systems
• pneumatic systems
• pumps
• valves
• industrial fittings
• oil systems
• fuel systems
• industrial equipment
• production machinery
• process equipment
• maintenance
• technical service

These are typical application areas for FKM O-rings. They do not constitute confirmation that this specific 8x2 mm O-ring is suitable for a particular machine, vehicle or OEM application.

Sold individually - displayed net price for 100 pcs

The FPM 8x2 mm FKM O-ring is sold individually, allowing customers to order the quantity required for production, maintenance, repair or technical procurement.

The displayed net price is for 100 pcs.

This means that the sales unit and price reference quantity are different. O-rings can be purchased individually, while the net price displayed on the product page represents the price of 100 pieces.

Installation of the FKM 8x2 mm O-ring

Before installation, carefully clean the groove and mating surfaces.

During installation, avoid:

• cutting or nicking the O-ring
• damage from sharp edges
• excessive stretching
• twisting the ring
• pulling the O-ring over exposed sharp threads without protection
• contamination of the sealing surfaces

If an assembly lubricant is used, its compatibility with both the FKM compound and the operating medium should be verified.

FAQ - O-ring FPM 8x2 FKM Viton

What are the dimensions of the FPM 8x2 O-ring?

The O-ring has an inside diameter of 8 mm and a cross-section diameter of 2 mm. Its dimensional designation is 8x2 mm.

What does FKM mean in an 8x2 O-ring?

FKM identifies a family of fluoroelastomers used in sealing technology. These materials are commonly selected for resistance to elevated temperatures, many oils, fuels, hydrocarbons, ozone and ageing.

Are FPM and FKM the same type of material?

FKM and FPM are designations referring to the fluorocarbon elastomer material family. The designation alone does not define the exact compound formulation, hardness or complete operating parameters.

Are Viton and FKM exactly the same?

No. FKM is a generic designation for a family of fluoroelastomers, while Viton is a trade name associated with specific fluoroelastomer materials. The designation FKM alone does not confirm a specific Viton compound.

Is the FPM 8x2 O-ring sold individually?

Yes. The product is sold individually, so customers can order the required number of pieces. However, the displayed net price is for 100 pcs.

Can an FKM 8x2 O-ring replace an NBR 8x2 O-ring?

Not automatically. Although both O-rings may have identical 8x2 mm dimensions, FKM and NBR have different material properties. The operating medium, temperature, pressure and other application requirements must be checked before substitution.

Is the FKM 8x2 O-ring resistant to oil?

FKM materials generally provide very good resistance to many oils and lubricants. Compatibility of the specific FKM compound with the actual operating medium should nevertheless be verified.

What is the operating temperature of an FKM 8x2 O-ring?

There is no single operating temperature range applicable to every FKM compound. Temperature capability depends on the exact elastomer formulation, operating medium and application conditions.

O-ring FPM 8x2 FKM Viton - key information

O-ring FPM 8x2 mm is an FKM/FPM fluoroelastomer sealing ring with an 8 mm inside diameter and 2 mm cross-section. FKM is commonly used where resistance to elevated temperatures, many oils, fuels, hydrocarbons and ozone is required. The product is sold individually, while the displayed net price is for 100 pcs.

Availability from simmering.pl

O-ring FPM 8x2 mm FKM is available from simmering.pl for industrial customers, maintenance departments, technical services, distributors and B2B procurement.

Products are supplied from stock in Poland, with worldwide shipping available. simmering.pl specialises in industrial sealing solutions and supplies O-rings in a wide range of dimensions and elastomer materials.