What are HNBR o rings used for?

HNBR o-rings are available in 70 durometer, 80 durometer, and 90 durometer. HNBR o-rings are preferable for use with petroleum-based oils and fuels, aliphatic hydrocarbons, vegetable oils, silicone oils and greases, ethylene glycol, water and steam (up to 300ºF), and diluted acids, bases, and salt solutions.

What are HNBR o rings made of?

HNBR o-rings are made from hydrogenated nitrile specifically designed to provide superior temperature and fuel resistance compared to traditional NBR materials. HBNR o-rings also feature excellent abrasion, wear, and compression set resistance, making them a reliable o-ring in a wide range of tough applications.

What is HNBR gasket?

HNBR for Gasket applications The HNBR gasket materials are especially developed oil resistant grades typically used for oil and gas applications. The HNBR polymers used are based on fully hydrogenated copolymers from butadiene and. acrylonitrile monomers. The most important feature of the HNBR polymers is the polarity.

Can HNBR o rings be used with gasoline?

HNBR applications HNBR is resistant to mineral oil-based hydraulic fluids, animal and vegetable fats, diesel fuel, ozone, sour gas, dilute acids and bases. HNBR also resists new bio-oils (biological oils).

What is the difference between black o rings and green o rings?

Difference between black o rings and green o rings Black o rings are primarily neoprene or Nitrile or, in some cases, a mix of the two materials. Green o rings are hydrogenated Nitrile, also known as highly saturated Nitrile, or more commonly known as HNBR.

What is the difference between green O rings and black O rings?

Are green O rings Viton?

Viton® & FKM O-Rings Fluoroelastomer (FPM, FKM, Fluoroelastomer) Green 75 Duro. Fluorocarbon FKM & Viton® O-Rings: Chemical resistant Fluorocarbon FKM O-Rings exhibit exceptional resistance to chemicals, oils, temperature extremes, low compression set, low gas permeability and excellent aging characteristics.

Is Buna N and nitrile the same?

Nitrile rubber — also known as acrylonitrile butadiene rubber, NBR, or Buna-N — is a synthetically produced, petroleum-based rubber ideal for seals, gaskets and o-rings. Nitrile is a highly versatile rubber. It is used in countless applications and products, from marine fuel systems to small engine carburetors.

Do the color of an O-rings make a difference?

Absolutely. The most common color is black, but brown, green, and rust are also available. Keep understand that changing from a black material to a colored one can reduce the material’s compression set resistance and / or physical properties.

Are green O-rings Viton?

What are the colors of HNBR O rings?

Internally lubricated compounds are superior for extended wear dry air applications. HNBR O-Rings are most commonly in Green or Black, are also avaialable in Yellow and red special compounds. An O-ring is a solid-rubber seal shaped like a dough nut or torus.

What kind of seal is an O ring?

An O-ring is a solid-rubber seal shaped like a dough nut or torus. When compressed between mating surfaces, an O-ring blocks the passage of liquids or gases. O-rings are available in a wide range of standard and non-standard sizes that are suitable for nearly all sealing applications.

What kind of resistance does an O ring have?

Fluorocarbon FKM & Viton® O-Rings: Chemical resistant Fluorocarbon FKM O-Rings exhibit exceptional resistance to chemicals, oils, temperature extremes, low compression set, low gas permeability and excellent aging characteristics.

Which is the best material for O rings?

Buna-N O-Rings / Nitrile O-Rings / NBR: Buna-N O-Rings are the most widely used o-ring material in the world because of low cost, good mechanical performance with resistance to water, most basic oils, lubricants and some fuels, many pneumatic, hydraulic systems, propane, natural gas and the default choice for basic applications.