Hydrogenated Nitrile (HNBR) O-Rings
Temperature Range:
-32°F (-36°C) to 300°F (149°C)
Hardness (Shore A) Range:
50 to 90
Also Know As:
Therban®, Tornac®, Zetpol®
Designation:
HNBR
Class:
DH
Shelf Life:
15 Years
Description:
Hydrogenated Nitrile comes from adding hydrogen to the nitrile molecular chain to make it more stable. The addition of hydrogen reduces the number of carbon-carbon double bonds, making it less reactive.
Advantages:
In comparison with NBR, HNBR has better abrasion resistance, tear resistance, high-temperature properties and resistance to chemical attacks. It can be used in ozone applications, R134a refrigerant gas, petroleum oils and fuels, water and team (up to 300° F), silicone oils and greases, vegetable and animal fats and fluids.
Disadvantages:
Cannot be used in chlorinated hydrocarbons, polar solvents (esters and ketones), and strong acids.
Parker Hydrogenated Nitrile (HNBR) Compounds
| Compound #: | Recommended For: | Temperature Range: | Color: |
|---|---|---|---|
| KB190-50 (21705) | Automotive Applications | -25°F to 300/325°F | Black |
| N1173-70 | General Purpose | -25°F to 300/325°F | Black |
| N1239-70 | Refrigerants | -25°F to 300/325°F | Red |
| KA157-70 (21407) | General Purpose | -30°F to 300/325°F | Black |
| KA158-70 | Low Temperature | -40°F to 300/325°F | Black |
| KA174-75 (21107) | 75 Duro, General Purpose | -25°F to 300/325°F | Black |
| N1231-80 | RGD Resistant, Automotive Refrigerants | -25°F to 300/325°F | Black |
| KA453-80 (21508) | Low Swell, ED Resistant | -25°F to 300/325°F | Black |
| KB162-80 (21378) | High Temp. Hydraulics | -25°F to 300/325°F | Black |
| KA183-85 | Low Temperature | -55°F to 300/320°F | Black |
| KB163-90 (21379) | High Temp. Hydraulics, ED Resistant | -25°F to 300/325°F | Black |
| N4007-95 | Extrusion Resistant, ED Resistant | -25°F to 300/325°F | Black |
