FKM O-rings are widely used in high-performance sealing applications due to their exceptional resistance to heat, chemicals, and oils.
- FKM O-rings provide superior resistance to extreme temperatures, chemicals, and oils, making them a top choice for industrial sealing applications.
These seals play a crucial role in various industries, ensuring leak-free performance under demanding conditions.
What Is an FKM O-Ring and How Does It Work?
FKM O-rings are synthetic rubber seals designed to withstand high temperatures and harsh chemicals.
- An FKM O-ring is a fluorocarbon elastomer seal known for its exceptional heat and chemical resistance, making it ideal for harsh environments.
Key Features of FKM O-Rings
| Feature | Benefit |
|---|---|
| Heat Resistance | Withstands temperatures up to 250°C |
| Chemical Resistance | Resists fuels, oils, acids, and solvents |
| Durability | Long-lasting performance in tough conditions |
What Is the Temperature Range of FKM O-Rings?
FKM O-rings offer excellent performance across a wide temperature range, making them suitable for extreme environments.
- FKM O-rings can operate effectively between -20°C and 250°C, with some special grades tolerating even wider ranges.
These seals maintain flexibility at high temperatures and resist cracking in colder conditions.
What Is the Difference Between NBR and FKM O-Rings?
Choosing between NBR and FKM O-rings depends on the specific requirements of your application.
- NBR O-rings are cost-effective and suitable for moderate conditions, while FKM O-rings provide superior resistance to heat, chemicals, and fuels.
Comparison Table: NBR vs. FKM O-Rings
| Property | NBR O-Rings | FKM O-Rings |
|---|---|---|
| Temperature Range | -40°C to 120°C | -20°C to 250°C |
| Chemical Resistance | Limited | Excellent |
| Oil Resistance | Good | Outstanding |
| Cost | Lower | Higher |
FKM vs. Viton O-Rings: Are They the Same?
Many buyers wonder whether FKM and Viton O-rings are interchangeable.
- FKM is the general term for fluorocarbon rubber, while Viton is a brand name owned by DuPont. Both offer the same fundamental properties.
Although all Viton O-rings are FKM, not all FKM O-rings are branded as Viton.
How to Choose the Right FKM O-Ring Size?
Finding the correct O-ring size is essential for an effective seal.
- Use an FKM O-ring size chart to ensure compatibility with your specific application.
FKM O-Ring Size Chart (Sample)
| Line Diameter (mm) | Outer Diameter Range (mm) | Customization Support |
|---|---|---|
| 2 | 5-250 | ✅ |
| 1.5 | 4-110 | ✅ |
| 2.5 | 10-495 | ✅ |
| 4 | 10-495 | ✅ |
What Chemicals Are FKM O-Rings Compatible With?
FKM O-rings excel in environments with aggressive chemicals.
- These O-rings resist oils, fuels, acids, and solvents, making them ideal for automotive, aerospace, and industrial applications.
Chemical Compatibility of FKM O-Rings
| Chemical | Compatibility |
|---|---|
| Diesel Fuel | Excellent |
| Hydraulic Oil | Excellent |
| Acids | Good |
| Ketones | Poor |
Conclusion
FKM O-rings provide superior sealing performance in extreme conditions, making them essential for industries requiring durability and chemical resistance.
Contact Us for High-Quality FKM O-Rings
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