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Product Advantage
1. FKM O-ring molecules contain fluorine elements and are made from globally renowned VITON fluororubber materials. Produced through molding process. High precision, high stability, smooth surface, no burrs or cracks.
2. It has the highest temperature resistance among all rubbers, and is the first choice for high-temperature resistant O-rings. The bond energy of C-F bond in FKM O-ring is extremely high, coupled with the shielding effect of fluorine atoms, allowing this rubber O-ring seal to work for a long time in environments up to 250 ℃. It will also not break even if it used in a high temperature of 300 ℃ for a short time.
3. Fluoro rubber O-ring has extremely strong oil and solvent resistance. Excellent resistance to mineral oil, hydraulic oil, gasoline/diesel, lubricating oil, and aromatic solvents, with minimal expansion in oil media. And it has good resistance to strong acids, strong bases, and strong oxidizing chemicals.
4. It has good mechanical strength, with a tensile strength of up to 16MPa. Oil resistant and high-temperature resistant FKM O-rings are often used together with metal seal in automobiles or machinery as oil seal, hydraulic seal, or mechanical seal.
Item | Unit | FKM O-Ring | |
Normal Condition | Color | / | Black,Green,Brown |
Hardness | Shore A | 40—90 | |
Tensile Strength | MPa | 9.3—16.2 | |
Elongation | % | 135—492 | |
Compression Set (200°C/22h) | % | 11—22 | |
Hot Air Aging (250°C/70h) | Hardness Change | Shore A | 1—4 |
Tensile Strength Change | % | -1—-20 | |
Elongation Change | % | -1—15 | |
Oil Resistance Test (IRM901#) (200°C/70h) | Hardness Change | Shore A | -7—-11 |
Tensile Strength Change | % | -5—22 | |
Elongation Change | % | -2—-14 | |
Volume Change | % | 11—14 | |
Oil Resistance Test (IRM903#) (200°C/70h) | Hardness Change | Shore A | -11—-35 |
Tensile Strength Change | % | -10—-34 | |
Elongation Change | % | -5—-18 | |
Volume Change | % | 15—22 | |
Low Temperature Resistance Test | Brittle Temperature | °C | -20—-40 |
Fluorine Rubber (FKM, VT)
Temperature Range: -20 °C to 250 °C
Advantage: Excellent heat, oli, acid and alkaliresistance
Disadvantage: Substandard cold resistance
Use: Oil & Heat resistance situation
Here are specific application scenarios for FKM O-rings:
1. Automotive industry: More than 60% of FKM O-rings are used in automobiles. It can be used as a rubber seal in high-temperature oil environments such as engines, transmissions, turbocharging systems, fuel systems, and air conditioning systems to prevent oil and liquid leakage.
2. Petroleum industry: Used in various types of equipment such as pumps, valves, pipelines, etc., seal including oils, fats, organic solvents, and corrosive media.
3. Aerospace and defense: Used for sealing aircraft engines, fuels, hydraulic systems, rockets, and the environment of extreme temperature, pressure, and chemical corrosion.
Q1. What sizes do you have?
A: We have all sizes of AS568 standard and JIS B 2401standard, and about 3000 non-standard sizes, we also can produce the size according to your requirement.
Q2. Do you have any certificates?
A: We have IATF16949:2016 certificate, ROHS certificate, PAHS certificate, REACH certificate and FDA certificate.
Q3. Can I get some samples before order?
A: Yes, we can provide free samples. You only need to pay for the freight.
Q4. What is the lead time?
A: The lead time for samples is 1-3 days. The lead time for mold is 1-2 weeks. The lead time for batch order is 1-3 weeks.
