Hydrogenated nitrile O-rings offer excellent oil resistance and resist hydrogen sulfide and LPG, which is why they are widely used in oilfield equipment. The working range spans −40 °C to 150 °C with high tensile strength, filling the gap between NBR, EPDM and FKM.
Hydrogenated nitrile fills the gap between NBR, EPDM and FKM. It keeps the oil resistance and mechanical strength of nitrile but adds heat, ozone, H2S and amine resistance, which is why it is so widely used in oilfield equipment where FFKM would be over-specified.
Key Features
- Temperature: −40 to 150 °C
- Resists: oils, H2S, LPG
- High tensile strength, wide temperature range
Typical Applications
- ESP equipment, wellhead and Christmas tree seals
- Sour gas service containing H2S and CO2
- LPG, condensate and refined-product handling
- Rotary and reciprocating seals in drilling and production equipment
- Automotive and industrial oil sealing
Custom Options & Ordering
- Material: HNBR / HSN (hydrogenated nitrile)
- Temperature: −40 to 150 °C
- High tensile strength and abrasion resistance
- Sizes: AS568, ISO 3601 and custom moulded
Request a Quote
Tell us your medium, working temperature, pressure and dimensions and we will recommend the compound and geometry for your duty. Reach our engineering team at sales@aobo.biz or +86-573-87855272, or use our contact page.