The four-lobe X-ring design prevents spiral failure in reciprocating applications and performs in rotary duty as well. HNBR gives higher temperature capability than standard NBR while retaining resistance to petroleum oils, motor oils, sour gas and oxidised fuels.
The four-lobe X-section is the remedy for spiral failure — the twisting an O-ring suffers in reciprocating duty. The lobes also give two sealing lines and a lubricant reservoir between them, so breakout friction is lower and the seal lasts longer than an equivalent O-ring.
Key Features
- Temperature: −30 to 150 °C
- Four-lobe design prevents spiral failure
- For static and dynamic sealing
Typical Applications
- Reciprocating rods and pistons in drilling and production equipment
- Rotary shafts and swivels
- Hydraulic cylinders and actuators
- Sour gas, petroleum oil and oxidised-fuel service
- Replacement of O-rings where spiral failure has been a problem
Custom Options & Ordering
- Material: HNBR (hydrogenated nitrile)
- Temperature: −30 to 150 °C
- Four-lobe section resists spiral failure
- Static and dynamic duty; standard and custom sizes
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.