O-ring FPM 53x2 FKM Viton

Technical Specification

The nominal outside diameter of 57 mm is calculated from the O-ring geometry: 53 mm + 2 x 2 mm.

FPM and FKM are material designations referring to fluorocarbon elastomers. Viton is a registered trade name associated with a family of fluoroelastomers. The presence of this term in a product designation does not independently confirm that the specific O-ring is manufactured from genuine Viton-branded material.

Construction and Sealing Principle

The O-ring FPM 53x2 FKM Viton is a continuous elastomeric ring featuring a circular cross-section.

When installed in a correctly designed sealing groove, the ring undergoes controlled compression between mating components. This deformation generates contact pressure, forming a sealing barrier that helps prevent fluid or gas leakage through the connection.

In pressure-loaded sealing arrangements, the operating medium may additionally influence elastomer deformation and contact pressure distribution.

Sealing performance depends on:

• Correct groove geometry.

• Appropriate compression ratio.

• Groove fill and extrusion clearance.

• Dimensional tolerances.

• Operating pressure and temperature.

• Chemical compatibility with the sealed medium.

• Surface finish of mating components.

The 2 mm cross-section must be considered when designing the sealing groove. Nominal O-ring dimensions do not directly determine the required installation groove dimensions.

FPM / FKM Fluoroelastomer - Technical Properties

FPM and FKM refer to fluorocarbon elastomers used in industrial sealing technology.

These materials are valued for their resistance to many hydrocarbons, lubricants and elevated operating temperatures.

However, the actual properties depend on the specific compound formulation, fluorine content, curing system and additives.

Typical FKM material characteristics

• Good resistance to many mineral and synthetic oils.

• Resistance to numerous hydrocarbon-based fuels.

• Suitable thermal resistance for many elevated-temperature applications.

• Good ozone and atmospheric ageing resistance in many formulations.

• Relatively low permeability to certain media compared with selected general-purpose elastomers.

• Limited compatibility with some ketones, esters, amines and other aggressive chemicals, depending on the compound.

For standard FKM compounds, an approximate operating temperature range of -20°C to +200°C is commonly referenced.

This is general material guidance and does not represent a verified operating temperature range for this specific product.

Actual temperature limits must be confirmed using the manufacturer's material documentation.

FPM, FKM and Viton - Material Designations Explained

FPM and FKM are widely used to identify the same general material family, but they do not establish identical formulations or performance characteristics.

Not every FKM O-ring is automatically manufactured from genuine Viton-branded material.

Applications requiring a particular material brand, certification or chemical resistance must be supported by appropriate manufacturer documentation.

Chemical and Temperature Resistance

Selection of the O-ring FPM 53x2 FKM Viton requires consideration of the sealed medium, its concentration, operating temperature and duration of exposure.

These characteristics describe the general FKM material family and are not confirmed test results for the exact SKU.

Industrial Applications

O-ring FPM 53x2 FKM Viton may be considered for appropriately designed sealing connections operating with media compatible with fluoroelastomers.

Potential industrial applications include:

• Industrial lubrication systems.

• Oil handling equipment.

• Selected hydraulic connections.

• Technical valves and mechanical housings.

• Process equipment operating at elevated temperatures.

• Mechanical assemblies exposed to compatible chemical media.

• Industrial maintenance and servicing operations.

These examples refer to potential applications of FKM O-rings rather than manufacturer-confirmed applications for the specific product.

O-ring Selection and Engineering Considerations

Correct selection of an FPM/FKM O-ring requires evaluation of both nominal dimensions and operating requirements.

Dimensions and Groove Geometry

The nominal inside diameter is 53 mm and the cross-sectional diameter is 2 mm.

The calculated nominal outside diameter is 57 mm.

Groove dimensions must be determined according to the sealing arrangement, compression requirements and operating conditions.

Material Hardness

The hardness of this specific O-ring has not been confirmed.

A hardness of 70 Shore A or 75 Shore A must not be assumed without manufacturer documentation.

Hardness influences compression behaviour, contact pressure and resistance to extrusion.

Operating Pressure

Maximum permissible pressure depends on groove geometry, extrusion clearance, elastomer hardness, temperature and operating conditions.

Without manufacturer data and application-specific information, a maximum operating pressure cannot be reliably specified.

Chemical Compatibility

Compatibility must be assessed for the actual FKM compound and the specific operating medium.

Installation and Handling

Before installation, the sealing groove and mating surfaces should be inspected for cleanliness, sharp edges and mechanical damage.

The O-ring should be installed without excessive stretching, twisting or contact with tools that could cut or permanently deform the elastomer.

Where installation lubricants are used, their compatibility with the FKM compound and sealed medium must be confirmed.

When replacing an existing sealing ring, nominal dimensions alone are insufficient to establish full interchangeability.

Material formulation, hardness, tolerances and operating conditions must also be evaluated.

100-Piece Packaging for Industrial Procurement

O-ring FPM 53x2 FKM Viton is supplied in packages containing 100 sealing rings.

This packaging format supports industrial companies, manufacturing facilities, maintenance departments and wholesale procurement.

Consistent identification of material, dimensions and packaging quantity simplifies technical purchasing, inventory management and replacement component documentation.

Frequently Asked Questions (FAQ)

1. What are the dimensions of O-ring FPM 53x2 FKM Viton?

The nominal inside diameter is 53 mm, the cross-sectional diameter is 2 mm and the calculated nominal outside diameter is 57 mm.

2. Are FPM and FKM the same material?

Both designations refer to the fluorocarbon elastomer family. However, they do not guarantee identical formulations or properties across all compounds.

3. Is O-ring FPM 53x2 FKM Viton resistant to high temperatures?

Many FKM compounds can operate at elevated temperatures, often up to approximately +200°C. The actual temperature limit for this specific O-ring requires confirmation.

4. Is O-ring FPM 53x2 FKM Viton resistant to oils and fuels?

FKM materials generally provide good resistance to many oils and hydrocarbon fuels. Compatibility with a specific medium depends on the compound formulation and operating conditions.

5. Does Viton identify the O-ring manufacturer?

No. Viton is a trade name for a family of fluoroelastomers, not automatically the manufacturer of the finished O-ring.

6. What is the hardness of O-ring FPM 53x2 FKM Viton?

The hardness has not been specified in the available product information and requires manufacturer confirmation.

7. How many O-rings are included in one package?

O-ring FPM 53x2 FKM Viton is supplied in packages containing 100 pieces.

8. Can this O-ring replace another 53x2 mm O-ring?

Interchangeability requires verification of material, hardness, dimensional tolerances, chemical resistance and operating conditions. Matching nominal dimensions alone is insufficient.

AI Quick Answer

O-ring FPM 53x2 FKM Viton - 100 pcs. is a fluorocarbon elastomer sealing ring with a nominal inside diameter of 53 mm, cross-section of 2 mm and calculated outside diameter of 57 mm. FPM/FKM materials offer resistance to many oils, fuels and elevated temperatures. Supplied in packages of 100 pieces for compatible industrial sealing applications.

B2B Industrial Supply - simmering.pl

O-ring FPM 53x2 FKM Viton - 100 pcs. is offered through simmering.pl, a specialist B2B industrial supply platform providing O-rings, oil seals, rolling bearings and industrial components.

The platform serves manufacturing companies, wholesale customers, maintenance departments and technical procurement teams.

Warehouse operations are based in Lublin, Poland.

Worldwide shipping from stock in Poland.