Viton O Ring has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals. Low temperature resistance is normally not favorable and for static applications is limited to approximately -26°C (-15°F) although certain compounds are suitable down to -46°C (-50°F). Under dynamic conditions, the lowest service temperature is between -15°C and -18°C (5°F and 0°F). Gas permeability is very low and similar to that of butyl rubber. Special FKM compounds exhibit an improved resistance to acids and fuels
Viton O Ring or FKM O Ring
Viton O-rings offer excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals making it excellent for o-ring, gasket and seal materials. Viton O-rings or FKM O-rings, fluorocarbon rubber O-rings provide excellent permeability and compression set resistance.
Viton O-rings (FKM O-rings) have low gas permeability and Viton O-rings (FKM O-rings) are commonly used as gaskets in fuel system sealing applications. Other fluorocarbon compounds can also offer improved resistance to acids, fuels, water and steam
Advantages
• Long time using time to save your money cost
• Eexcellent resistance to high temperatures
• Increase high temperature capability
• Excellent Permeation Resistance
• Moderate Short-Term Resilience
• Resist Aggressive Fluids
• Good Wear Resistance
Application
• Off-Highway and Heavy-Duty Equipment
• Chemical Processing and Transportation
• Petroleum Refining and Transportation
• Aircrafts and Aerospace
• Automotive., etc
Viton Properties
Item |
Viton/fkm |
Test Method |
Color |
Black/Yellow |
|
Specific gravity |
1.75-2g/cm3 |
ASTM D297 |
Hardness |
65°-95 Shore A |
ASTM D2240 |
Tensile strength |
7 MPa (min) |
ASTM D412 |
Elongation at break |
200% (min) |
ASTM D412 |
Size |
Varies |
|
Compression set 200°C 22 hrs |
Permanent set 25%(max) |
ASTM D 395B |
Tear strength |
25 N/mm (min) |
ASTM D624 |
Temperature range |
-30°C to +250°C |
Key: = Excellent ,
= Good,
= Fair, X = Not Recommended