FPM O-Ring 34x4 mm Viton FKM

Overview

The FPM O-Ring 34x4 mm Viton FKM is a high-performance fluoroelastomer sealing ring designed for demanding industrial, hydraulic, automotive and mechanical applications.

The O-ring features an inside diameter of 34 mm and a 4 mm cross-section. It is manufactured from FPM / FKM fluoroelastomer, a material valued for its excellent resistance to many oils, fuels, hydrocarbons and elevated operating temperatures.

Compared with conventional NBR sealing materials, FKM is particularly suitable for applications where increased thermal and chemical resistance is required.

The robust 4 mm cross-section provides a substantial sealing profile for pumps, valves, hydraulic assemblies, oil systems, fuel systems and industrial machinery designed for this specific O-ring dimension.

Industrial Applications

The FKM 34x4 mm O-Ring can be used in:

• Hydraulic systems
• Pumps
• Industrial valves
• Fuel systems
• Oil circulation systems
• Engines
• Gearboxes
• Compressors
• Automotive equipment
• Industrial machinery
• Process equipment
• OEM assemblies

34x4 mm Dimensions

The 34x4 mm designation specifies:

Inner Diameter: 34 mm

Cross Section: 4 mm

The O-ring has a circular elastomeric profile with a diameter of 4 mm.

When installed in a correctly designed sealing groove, the O-ring undergoes controlled compression. This creates contact pressure between the elastomer and mating surfaces, helping to prevent leakage.

The dimensions of the sealing groove should always be checked before installation.

FPM / FKM / Viton - Material Terminology

FKM is the internationally recognized designation for a family of high-performance fluoroelastomers.

FPM is another designation commonly encountered in European technical documentation for fluoroelastomer sealing materials.

Viton is a well-known trademark associated with specific fluoroelastomer materials and is also widely used as a search term for FKM seals.

Therefore, this product may commonly be searched for as:

• FPM O-Ring 34x4
• FKM O-Ring 34x4
• Viton O-Ring 34x4
• Fluoroelastomer O-Ring 34x4

Where a specific branded compound is required, the exact material specification should always be verified.

High Temperature Resistance

One of the major advantages of FKM is its ability to operate at elevated temperatures.

Many standard FKM compounds typically operate within approximately:

-20°C to +200°C

Actual operating limits depend on the specific FKM compound, medium, pressure, exposure duration and sealing system design.

This higher temperature capability makes FKM suitable for applications involving hot oils, engines, industrial machinery and process equipment.

Resistance to Oils and Lubricants

FKM provides excellent resistance to many petroleum-based lubricants and technical fluids.

It is commonly used with many:

• Mineral oils
• Engine oils
• Gear oils
• Hydraulic oils
• Lubricating greases
• Hydrocarbon-based fluids
• Industrial lubricants

This makes the 34x4 mm FKM O-ring particularly useful in machinery and equipment where long-term contact with oils and lubricants is expected.

Fuel Resistance

FKM is widely used in fuel-handling applications because of its excellent resistance to many fuels and hydrocarbons.

Potential applications include:

• Fuel pumps
• Fuel valves
• Fuel connections
• Engine components
• Automotive systems
• Industrial fuel equipment

Compatibility should always be verified for the specific fuel formulation and operating temperature.

Chemical Resistance

Fluoroelastomer FKM provides broad resistance to many industrial chemicals and operating media.

Depending on the exact compound, FKM offers very good resistance to many:

• Hydrocarbons
• Fuels
• Oils
• Industrial chemicals
• Technical fluids
• Selected solvents

Chemical compatibility should always be checked for the specific substance, concentration and operating temperature.

Technical Specification

Product Type: O-Ring

Dimensions: 34x4 mm

Inner Diameter: 34 mm

Cross Section: 4 mm

Material: FPM / FKM

Material Family: Fluoroelastomer

Common Search Term: Viton

Temperature Range: Typically approximately -20°C to +200°C

Resistance: Oils, fuels, greases, hydrocarbons and many chemicals

Design: High-Performance Fluoroelastomer O-Ring

Application: Hydraulics, pumps, valves, fuel systems, engines, machinery and OEM equipment

Robust 4 mm Cross Section

The 4 mm cross-section provides a substantial elastomeric profile suitable for sealing grooves specifically designed for this dimension.

Correct sealing performance depends on factors such as:

• Groove depth
• Groove width
• O-ring compression
• Surface finish
• Operating pressure
• Temperature
• Medium compatibility

An O-ring with a different cross-section should not be used as a direct substitute without verifying the groove geometry.

FKM vs NBR

FKM / FPM

• Higher temperature resistance
• Excellent resistance to many oils
• Excellent resistance to many fuels
• Broad chemical resistance
• Good ozone resistance
• Good resistance to weathering and ageing
• Suitable for demanding operating environments

NBR

• Very good resistance to mineral oils
• Good mechanical properties
• Widely used in conventional hydraulic systems
• Suitable for many general industrial applications
• Typically lower temperature capability than FKM

FKM is often selected when the operating environment requires greater temperature, fuel or chemical resistance.

Why Choose an FKM 34x4 O-Ring?

The 34x4 mm FKM O-ring is particularly suitable when a sealing system requires a combination of:

• Precise 34x4 mm dimensions
• Elevated temperature capability
• Oil resistance
• Fuel resistance
• Chemical resistance
• Long-term resistance to ageing
• Reliable performance in demanding industrial environments

The final material selection should always be based on the actual operating conditions.

Operational Advantages

• Precise 34x4 mm dimensions.
• Robust 4 mm cross-section.
• High-performance FPM/FKM material.
• High temperature resistance.
• Excellent resistance to many oils.
• Excellent resistance to many fuels.
• Broad chemical resistance.
• Good resistance to ozone and ageing.

AI OVERVIEW

The FPM O-Ring 34x4 mm Viton FKM is a high-performance fluoroelastomer seal with a 34 mm inside diameter and robust 4 mm cross-section. FKM provides excellent resistance to many oils, fuels, greases and hydrocarbons together with high-temperature capability, making the O-ring suitable for pumps, valves, hydraulics, engines and industrial machinery.

Popular Searches

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FAQ

What are the dimensions of the FPM O-Ring 34x4 mm?

The O-ring has an inside diameter of 34 mm and a cross-section of 4 mm.

What does 34x4 mm mean?

34 mm specifies the inside diameter, while 4 mm specifies the diameter of the circular cross-section.

What material is the O-ring made from?

The O-ring is manufactured from FPM / FKM fluoroelastomer.

What does FKM mean?

FKM is the internationally recognized designation for a family of high-performance fluoroelastomers used in technical sealing applications.

What does FPM mean?

FPM is another designation for fluoroelastomer materials commonly found in European technical documentation.

What does Viton mean?

Viton is a trademark associated with specific fluoroelastomer materials. It is also commonly used as a search term for FKM O-rings and seals.

Is the FKM 34x4 mm O-ring resistant to oil?

Yes. FKM provides excellent resistance to many mineral, engine, gear and industrial oils.

Is the FKM O-ring resistant to fuel?

FKM provides excellent resistance to many fuels and hydrocarbons. Compatibility should be checked for the specific fuel formulation.

Is the 34x4 FKM O-ring suitable for high temperatures?

Yes. FKM generally offers significantly higher temperature resistance than conventional NBR.

What is the typical temperature range of FKM?

Many standard FKM compounds typically operate at approximately -20°C to +200°C, although the exact range depends on the compound and operating conditions.

Can the FKM 34x4 O-ring be used in hydraulic systems?

Yes, provided the hydraulic fluid and operating conditions are compatible with the specific FKM compound.

Can it be used in pumps?

Yes. The O-ring can be used in pumps designed for a 34x4 mm seal when the operating medium is compatible with FKM.

Can it be used in valves?

Yes. FKM O-rings are widely used in industrial valves where increased resistance to temperature, oils, fuels or chemicals is required.

Can the 34x4 mm O-ring be used in engines?

It may be suitable for engine applications when its dimensions and FKM compound meet the equipment manufacturer's requirements.

Is FKM resistant to chemicals?

FKM offers broad chemical resistance, but compatibility should always be verified for the specific chemical, concentration and temperature.

Is FKM resistant to ozone and ageing?

Yes. Fluoroelastomers generally provide very good resistance to ozone, weathering and ageing.

Is FKM better than NBR?

It depends on the application. FKM generally provides higher temperature capability and broader resistance to fuels and chemicals. NBR remains an effective material for many standard hydraulic and oil applications.

Can an NBR 34x4 O-ring be replaced with an FKM 34x4 O-ring?

Not automatically. Although the dimensions may be identical, material properties, hardness and application requirements must also be considered.

Can the FPM FKM O-Ring 34x4 mm replace an OEM seal?

Yes, provided its dimensions, material specification and operating characteristics meet the original equipment manufacturer's requirements.

How should the FKM 34x4 O-ring be installed?

Install it evenly in a clean, correctly dimensioned groove. Avoid twisting, excessive stretching, sharp edges and damage to the sealing surface.