Parker’s HNBR sealing compounds provide cost-effective solutions in aggressive EOG environments.
N1173-70, N1231-80 and KB163-90 are sealing compounds made from hydrogenated nitrile, a synthetic polymer that results from the hydrogenation of nitrile rubber (NBR). The hydrogenation process gives HNBR materials enhanced thermal stability (up to 149°C/300°F, with short periods at higher temperatures).
HNBR materials also possess superior mechanical properties and enhanced fluid compatibility over standard nitrile compounds. These properties allow HNBR materials to be a cost-effective bridging compound between nitrile and fluorocarbon elastomers.
Due to their enhanced abrasion resistance, Parker’s HNBR elastomers are commonly used in journal bearing seals for drill bits. Their fluid and temperature resistance make N1173-70, N1231-80 and KB163-90 compounds ideal for any EOG applications where high temperatures and harsh chemicals, such as amines, are present. Check with the Gallagher Engineering Department to be sure HNBR fits your application.
- Sour gas
- Petroleum Oils
- Silicone greases
- Most refrigerants including R134a
- Dilute acids and bases
Not recommended for:
- Polar solvents
- Strong acids
- Chlorinated hydrocarbons
- Aliphatic hydrocarbons
Unless otherwise noted, these are test values from a limited number of samples and should be used for establishing specific limitations