Showing posts with label air conditioner orings. Show all posts
Showing posts with label air conditioner orings. Show all posts

Wednesday, March 13, 2013

Green HNBR O-Rings

As we continue to expand our inventory and product offerings we are now stocking the most popular sizes in 70 Durometer Green HNBR

Kits with 18 sizes and 200 for a great price

Inch (AS568) and Metric available from stock

70 Durometer

R134A compatible

-20˚c ~ + 150˚c

special order compounds for 45˚c ~ + 150˚c material available. (75 duro only)

Full ASTM D2000 material data sheets for each compound available upon request.

Hydrogenated Nitrile offers excellent high tensile and low compression set. It's excellent heat and ozone resistance make it a compound with a wide variety of uses. Hydrogenation is the process of adding hydrogen atoms to the butadiene segments; this is also known as "saturating" the material. Adding hydrogen causes many of the carbon-to-carbon double bonds (C=C) in the polymer backbone to become single bonds (C-C). Single bonds are desirable because they have greater stability and require more energy to break than double bonds. The higher the percent of saturation, the greater the number of carbon-to-carbon single bonds, and the greater the chemical and heat resistance.

HNBR performs well in:

Automotive applications (air conditioning O-rings, timing belts, fuel injector seals, fuel hose seals, shaft seals, diaphragms, paintball applications and lip seals)
Oil field applications (O-rings, well-head seals, packers, ram and annular blowout preventors, drill-bit seals, downhole, drill/pipe protectors, valve seals).

HNBR does not perform well in:
Esters
Ketones
Ethers
Hydrocarbons (chlorinated)