What is the difference between Viton and nitrile O rings?
Environmental Properties: Viton® O-rings and seals have a wide range of chemical resistance (involving mineral acids, fuels, and oils) and this material is also highly resistant to oxidation, UV exposure, fungus, weather, ozone, and mould. This makes Viton® far superior to Nitrile in these regards.
What is NBR O-ring?
Nitrile rubber (NBR) o-rings, also known as Buna-N, are one of the most commonly used sealing elastomers due to resistance to petroleum-based fuels and lubricants and its relatively low price. Nitrile elastomers are copolymers of acrylonitrile and butadiene.
What is the difference between nitrile and Buna o-rings?
High Nitrile content within the polymer provides higher resistance to oils but lowers its flexibility. In other words, Buna offers superior strength and is more resistant than natural rubber to oils and acids, however, its flexibility is limited.
What is the difference between nitrile and fluorocarbon?
Nitrile oil seals are made from a compound that tolerates low temperatures and has excellent abrasion resistance. FKM Fluorocarbon oil seals feature excellent resistance to petroleum products and solvents. They have good high temperature and low compression set characteristics.
Is nitrile softer than silicone?
Nitrile can operate to 100 °C, or 121 °C with reduced longevity. Silicone can operate at much higher temperatures, up to 230 °C. This makes silicone the best choice for high temperature applications. Both materials are resistant to a range of chemicals….Silicone vs Nitrile.
NBR | Silicone |
---|---|
Good abrasion resistance | Poor abrasion resistance |
What is EPDM O ring?
EPDM o-rings, or ethylene propylene o-rings, are a family of synthetic elastomers with lower cost steam and chemical resistance, particularly for applications involving solvents, acids and other mild chemicals.
Is nitrile reach compliant?
This product is a chemical preparation under Regulation No 1907/2006 of the European Parliament and the Council concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH).
What temperature can nitrile rubber withstand?
Due to its excellent resistance to petroleum products, and its ability to be compounded for service over a temperature range of -35°C to +120°C (-30°F to +250°F), Nitrile /NBR is the most widely used elastomer in the seal industry today.
What is the most durable O ring material?
Fluorocarbon (Viton®) Offering outstanding chemical and high-temperature resistance, fluorocarbon O-rings are among the most durable and versatile available. They are particularly valuable in aircraft engines and automotive fuel handling systems because they resist swell in high-octane and oxygenated fuels.
What size is a O ring?
The standard sizes are also used for most military specifications. Cross-sectional diameters range from 0.040 to 0.275 inch. Inside diameters range from 0.029 to 25.940 inches.
Is nitrile rubber good for O-rings?
As an elastomeric material, nitrile has many mechanical properties that make it well-suited for O-rings and sealing applications. Nitrile holds high fuel and oil resistant properties. It is known for its tensile strength.
What are nitrile O-rings?
Nitrile rubber (NBR) o-rings, also known as Buna-N, are one of the most commonly used sealing elastomers due to resistance to petroleum-based fuels and lubricants and its relatively low price. Nitrile elastomers are copolymers of acrylonitrile and butadiene. There are a number of common variations of nitrile compounds.
What is the NBR content of nitrile?
NBR Nitrile. NBR (Nitrile), chemically, is a copolymer of butadiene and acrylonitrile. Acrylonitrile content varies in commercial products from 18% to 50%. As the NBR content increases, resistance to petroleum base oils and hydrocarbon fuels increases, but low temperature flexibility decreases.
What is Buna nitrile O ring?
Buna Nitrile O-Ring Material Description. Nitrile rubber (NBR) o-rings, also known as Buna-N, are one of the most commonly used sealing elastomers due to resistance to petroleum-based fuels and lubricants and its relatively low price. Nitrile elastomers are copolymers of acrylonitrile and butadiene.
What is the temperature range of nitrile?
Temperature Range (Typical Compounds) Sulfur-Cured: Standard Low Temp: -35°C (-31°F) Standard High Temp: 120°C (248°F) SPEC SHEET: Nitrile 70 Durometer SPEC SHEET: Nitrile 75 Durometer – Metal & X-Ray Detectable SPEC SHEET: Nitrile 90 Durometer SPEC SHEET: Nitrile 90 Durometer – High-Visibility Peroxide-Cured: Standard Low Temp: -29°C (-20°F)