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Help CenterAcid Resistant Metric Brown O-Ring Viton For Aircraft Engines Seals Systems
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Certification:CE,FCC,MSDS
Acid Resistant Metric Brown O-Ring Viton For Aircraft Engines Seals Systems
VITON O-RINGS:
Viton® (fluorocarbon rubber) has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals making it a good choice for an o-ring material.
Low temperature resistance is normally not favorable and for static applications is limited to approximately -15 °F (-26 °C) although in certain situations it is suitable down to -40 °F (-40 °C) Under dynamic conditions, the lowest service temperature is between 5 °F and 0 °F (-15 °C and -18 °C).
Gas permeability is very low and similar to that of butyl rubber. Special fluorocarbon compounds exhibit an improved resistance to acids, fuels, water and steam.
ASTM D1418 Designation: FKM
ASTM D2000/SAE Type, Class: HK
ORK Compound Designation: VT
Standard Color: Black
Description: Combining high temperature resistance with outstanding chemical resistance, Fluorocarbon-based compounds approach the ideal for a universal O-ring material.
Key Use(s): Seals for aircraft engines. Seals for automotive fuel handling systems. High temperature/low compression set applications. Wide chemical exposure situations. Hard vacuum service.
Temperature Range
Standard Compound: -13° to +446°F
Special Compound: -40° to +446°F
Hardness (Shore A): 55 to 90.
Features:High fluorine grades offer higher resistance to swell in high octane and oxygenated fuel blends. This give superior performance in Ethanol/Methanol blended gasoline. Base resistant grades offer improved resistance to amine based oil protectants found in new transmission oils. Also, improved resistant to steam for higher temperature services. Low temperature bases can improve performance to -40°F.
New Polymers being offered have improved chemical resistance and low temperature performance.
Viton® Extreme™ ETP offers similar chemical compatibility as Kalrez™ with temperature performance with a TR(10) of -40°F and brittleness to -76°.
Limitations: Fluorocarbons (Viton®s) are not recommended for exposure to ketones, amines, low molecular weight esters and ethers, nitro hydrocarbons, hot hydrofluoric or chlorosulfonic acids, or Skydrol® fluids. They are also not recommended for situations requiring good low temperature flexibility.
Viton® O-Ring General Attributes
Excellent Heat resistanceExcellent resistance to oilsLow compression setGood fuel resistanceExcellent ozone and weather resistanceCommon Applications for Viton® O-Rings
Engine Oil SealsFuel SystemsHigh Temperature SealsPetrochemical Systems| Flurocarbon Compuond | Available Specifications | Key Characteristics | Average Temperature Ranges |
| Commercial | ASTM D2000 | Available in black or brown. Excellent resistance to head and a wide range of chemicals. | 5° to 446°F |
| AMS7276 | AMS 7276, M83248/1, Mil-R-83248 CL1, Dwg AS3208, AS3209 |
Meets AMS7276. Excellent resistance to heat, engine oils and lubricants, ozone and weathering. Low compression set and good fuel resistance. | -13° to 392°F |
| AMS7259 | AMS 7259, M83248/2, Mil-R-83248 CL2, Dwg AS3581 |
Meets AMS7259. Similar to AMS 7276 above except in 90-durometer hardness. | -13° to 392°F |
| M83485/1 GLT Type | M84385/1, AMS-R-83485, Mil-R-83485 |
Meets AMS-R-83485. Excellent heat resistance and low temperature performance. GLT Type Viton. | -35° to 400°F |
| GFLT Viton | ASTM D2000 / SAE J200, M7HK 710 A1-10 B38 EF31 Z1 Z2 Z3 |
GFLT based FKM. Good for low temp with improved chemical resistance. Listed for fuel/alcohol applications. | -31° to 392°F |
| FDA Viton | ASTM D2000 / SAE J200 M2HK 710 A1-10 B37 B38 EF31 F15 Z |
FDA, USDA, and NSF grades available. | -4° to 392°F |
| Viton Extreme | Extreme chemical service. Strong bases and amines. Peroxide cured. | -4° to 392°F | |
| Viton V91A | Low Temperature applications. Explosive decompression resistant. | -51° to 437°F |
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