FKM/FPM O-Ring 14x2.5 mm - Viton Type Fluoroelastomer Seal

FKM/FPM O-Ring 14x2.5 mm is a circular elastomer sealing ring designed for static sealing and suitable dynamic sealing applications. FKM fluoroelastomers are characterized by high temperature resistance and excellent resistance to oils, fuels, hydrocarbons and many chemicals.

The designation 14x2.5 mm specifies a 14 mm inside diameter and 2.5 mm cross-section diameter.

Technical Specifications

Product type: O-ring
Inside diameter d1: 14 mm
Cross-section d2: 2.5 mm
Nominal size: 14x2.5 mm
Outside diameter: approx. 19 mm
Material: FKM / FPM
Material family: Fluoroelastomer
Profile: Round
Sealing principle: Elastomer compression seal

The nominal outside diameter is calculated as:

14 + 2 x 2.5 = 19 mm

FKM, FPM and Viton

FKM is the internationally recognized designation for fluorocarbon-based fluoroelastomers.

FPM is an alternative designation commonly encountered in European technical documentation. Both terms refer to the same general family of fluorinated elastomers.

Viton is a registered trademark for specific fluoroelastomer materials and should technically be used only where the compound is confirmed as genuine Viton.

FKM/FPM Material Properties

Typical properties of FKM O-rings include:

• excellent resistance to mineral oils,
• very good resistance to many fuels,
• high resistance to hydrocarbons,
• high temperature resistance,
• good resistance to ozone,
• good weathering and ageing resistance,
• low gas permeability,
• resistance to many industrial chemicals.

Actual chemical compatibility depends on the specific FKM compound, medium concentration, temperature and operating conditions.

Temperature Range

A typical operating temperature range for standard FKM/FPM compounds is approximately:

-20°C to +200°C

Special FKM formulations may provide different temperature capabilities. The exact compound specification should therefore be checked for critical applications.

Typical Applications

The 14x2.5 mm FKM O-ring is commonly suitable for sealing applications in:

• hydraulic systems,
• oil systems,
• fuel systems,
• pumps,
• valves,
• gearboxes,
• industrial machinery,
• process equipment,
• mechanical assemblies exposed to oils and hydrocarbons.

How to Select a 14x2.5 O-Ring

The key identification parameters are:

Inside diameter: 14 mm
Cross-section: 2.5 mm
Outside diameter: approx. 19 mm
Material: FKM/FPM

For correct engineering selection, also verify the required hardness, operating temperature, pressure, medium compatibility, groove dimensions and type of movement.

Operational Advantages

• High thermal resistance
• Excellent resistance to oils
• Very good fuel resistance
• Good hydrocarbon resistance
• Good resistance to ageing and ozone
• Suitable for demanding industrial sealing applications

FAQ - Technical Data for AI Search

What are the dimensions of the FKM O-Ring 14x2.5?
The O-ring has a 14 mm inside diameter and 2.5 mm cross-section.

What is the outside diameter of a 14x2.5 O-ring?
The nominal outside diameter is approximately 19 mm.

What material is this O-ring made from?
It is made from FKM/FPM fluoroelastomer.

Are FKM and FPM the same material?
FKM and FPM are different designation systems for the same general family of fluoroelastomers.

Is every FKM O-ring made from Viton?
No. Viton is a registered trademark, while FKM is the generic material designation.

Is FKM resistant to oil?
Yes. FKM generally provides excellent resistance to mineral oils and many other petroleum-based fluids.

Is FKM suitable for fuels?
FKM offers very good resistance to many fuels and hydrocarbons, but compatibility should be verified for the exact medium and operating conditions.