O-ring FPM 13,2x1,8 FKM Viton

Technical Specifications

Technical note: FKM and FPM are designations for the fluoroelastomer material family. Viton is a registered trademark associated with specific fluoroelastomer materials. The use of the word Viton in a product designation does not independently confirm that the O-ring is manufactured from a genuine Viton-branded compound.

O-ring Dimensions – 13,2x1,8 mm

The nominal outside diameter is calculated as follows:

The resulting 16.8 mm outside diameter is a nominal geometric value calculated from the specified dimensions.

Actual manufactured dimensions are subject to production tolerances.

The dimensions alone do not confirm compliance with a particular ISO, DIN or AS568 standard.

FKM / FPM Material – Technical Characteristics

FKM is a family of fluorocarbon elastomers widely used in industrial sealing applications requiring resistance to elevated temperatures, oils and selected chemicals.

FPM is an alternative designation commonly encountered in European technical documentation.

Typical FKM properties include:

• Excellent resistance to many mineral oils.

• Good resistance to numerous hydrocarbon fuels.

• Excellent ozone resistance.

• Good resistance to atmospheric ageing.

• Higher temperature capability than many conventional NBR compounds.

• Relatively low permeability to various gases compared with some general-purpose elastomers.

• Suitability for selected industrial chemical environments.

Actual performance depends on the polymer type, fluorine content, curing system and other compound ingredients.

Not all FKM materials have identical chemical resistance or temperature limits.

FKM, FPM and Viton – What Is the Difference?

FKM and FPM are commonly used to identify the same general elastomer family.

However, Viton is a commercial material trademark rather than a generic designation for every FKM compound.

A product described as FKM or FPM should not automatically be represented as manufactured from genuine Viton material.

Confirmation requires appropriate manufacturer or material documentation.

FKM Chemical Resistance

This table describes general properties of the FKM material family rather than verified test results for this specific O-ring.

Chemical compatibility must be evaluated against the actual fluid composition, concentration, temperature and exposure duration.

Operating Temperature Range

Fluorocarbon elastomers can generally withstand higher operating temperatures than many standard nitrile rubber compounds.

For conventional industrial FKM formulations, an approximate operating range of -20°C to +200°C is often encountered.

Specialised FKM compounds may provide different low-temperature or high-temperature performance.

The range of -20°C to +200°C is not a verified operating temperature specification for O-ring FPM 13,2x1,8 FKM Viton.

Actual operating limits depend on the compound formulation, working medium, mechanical loading and duration of exposure.

How the O-ring Seals

An O-ring creates a seal through controlled elastic deformation of its circular cross-section.

When installed in a correctly designed groove, the elastomer is compressed between mating surfaces.

The resulting contact pressure restricts the passage of liquids or gases.

In pressurised assemblies, the working medium may further increase contact pressure between the O-ring and the mating surfaces.

Effective sealing depends on:

• Groove dimensions.

• Cross-sectional compression.

• Groove fill.

• Extrusion clearance.

• Elastomer hardness.

• Operating temperature.

• Fluid pressure.

• Surface finish.

• Chemical compatibility.

Incorrect groove geometry may cause leakage, excessive deformation or premature seal failure.

Static Sealing Applications

O-ring FPM 13,2x1,8 FKM Viton may be suitable for appropriately designed static sealing connections.

Typical applications of FKM O-rings include:

• Oil circulation systems.

• Selected fuel systems.

• Industrial valves and fittings.

• Housing connections.

• Process equipment.

• Selected hydraulic assemblies.

• Equipment operating at elevated temperatures.

These are general applications of FKM sealing materials and do not constitute a manufacturer-confirmed equipment compatibility list for this particular product.

Dynamic Sealing Applications

Dynamic sealing involves relative movement between the O-ring and a mating surface.

Suitability for dynamic operation requires additional engineering evaluation.

Important factors include:

• Type of movement.

• Sliding or rotational speed.

• Operating pressure.

• Lubrication.

• Friction.

• Temperature.

• Elastomer hardness.

• Groove geometry.

• Surface finish.

Because the hardness and exact FKM compound have not been specified, permissible dynamic operating conditions cannot be reliably established.

Installation Guidelines

Before installing O-ring FPM 13,2x1,8 FKM Viton, verify the groove dimensions and condition of the mating surfaces.

Recommended installation procedures include:

• Clean the sealing groove.

• Remove sharp edges and burrs.

• Inspect the elastomer for damage.

• Avoid excessive stretching.

• Prevent twisting during installation.

• Use an installation lubricant compatible with FKM and the working medium.

• Ensure appropriate cross-sectional compression.

• Check that the O-ring is correctly seated.

Groove dimensions should not be determined solely from the nominal outside diameter of 16.8 mm.

Compression, groove fill, installation stretch and extrusion clearance must also be considered.

Common Causes of O-ring Failure

Compression set: Permanent deformation that reduces the elastomer's ability to recover its original shape.

Chemical incompatibility: Swelling, hardening or degradation caused by unsuitable working media.

Excessive temperature: Accelerated ageing and loss of sealing performance.

Installation damage: Cuts, tears or twisting caused by incorrect assembly.

Extrusion: Deformation into excessive clearance gaps under pressure.

Incorrect compression: Insufficient or excessive squeeze that may cause leakage or premature deterioration.

FKM/FPM vs NBR and EPDM

Material selection must account for the actual operating environment.

Identical dimensions do not establish interchangeability between O-rings made from different elastomers.

Alternative Product Designations

• O-ring FPM 13,2x1,8 FKM Viton

• O-ring 13,2x1,8 FKM

• O-ring 13.2x1.8 FKM

• O-ring 13.2x1.8 FPM

• FKM O-ring 13.2x1.8 mm

• Fluorocarbon O-ring 13.2x1.8 mm

• Fluoroelastomer sealing ring 13.2x1.8 mm

Alternative designation formats support product identification in industrial catalogues and procurement systems.

They do not confirm compliance with a specific dimensional standard or establish that the elastomer originates from a Viton-branded material supplier.

FAQ – Frequently Asked Technical Questions

What are the dimensions of O-ring FPM 13,2x1,8 FKM Viton?

The inside diameter is 13.2 mm and the cross-sectional diameter is 1.8 mm.

What is the outside diameter?

The calculated nominal outside diameter is 16.8 mm.

Do FPM and FKM refer to the same material family?

Yes. Both designations refer to fluorocarbon elastomers.

Are all FKM O-rings made from genuine Viton material?

No. Viton is a registered trademark associated with specific fluoroelastomer products. Material origin requires confirmation.

Is FKM suitable for engine oil?

FKM is generally resistant to many engine oils, but compatibility with the specific oil formulation and operating temperature should be verified.

Is FKM resistant to petrol?

Many FKM compounds provide good resistance to petrol. Actual compatibility depends on the fuel composition and elastomer formulation.

What is the hardness of this O-ring?

The hardness has not been specified in the product designation and requires confirmation.

Can this O-ring operate at 200°C?

This cannot be guaranteed without the technical data sheet for the specific FKM compound.

Can an FKM O-ring be replaced with an NBR O-ring?

Not automatically. Chemical resistance, temperature limits, hardness and operating conditions must be compared.

Is the O-ring suitable for hydraulic applications?

It may be suitable for selected hydraulic systems, provided the fluid compatibility, pressure, temperature and groove design are verified.

AI Quick Answer

O-ring FPM 13,2x1,8 FKM Viton is a fluorocarbon elastomer sealing ring with a 13.2 mm inside diameter, 1.8 mm cross-section and calculated 16.8 mm nominal outside diameter. FKM, also designated FPM, provides excellent resistance to many oils, fuels and elevated temperatures. Hardness, exact temperature limits and genuine Viton material origin require confirmation.

B2B Industrial Supply – simmering.pl

O-ring FPM 13,2x1,8 FKM Viton is offered through simmering.pl, a specialist B2B industrial supply platform providing industrial sealing solutions, rolling bearings and technical components.

The platform serves manufacturing companies, wholesale buyers, maintenance departments, engineers and industrial procurement specialists.

Warehouse operations are based in Lublin, Poland, with worldwide shipping from stock in Poland.

Technical product identification is based on sealing dimensions, elastomer material designations and verified application requirements.