DuPont™ Kalrez® 0090 Perfluoroelastomer Parts For Ball Valves in Refineries

Ball valves are primarily used for shut-off applications in the energy industry and must function in a wide range of chemical environments, both gas and liquid, where significant performance differences are often observed between various types of sealing materials.

Kalrez® 0090 O-rings are TOTAL and NORSOK compliant with exceptional chemical resistance and Rapid Gas Decompression performance making them an excellent choice for refi nery, ball valve applications.

Application Parameters

  • Chemicals:  Sour feed gas (gas/vapor)  5 to 15% H2 S, 2 to 5% CO2
  • Process conditions:  19°F to 250°F  |  1030 psi to 1233 psi
  • Incumbent solutions: Competitive FFKM
  • Incumbent performance: 6 to 12 months before failure

Kalrez 0090 O-Ring Performance

Thanks to the exceptional chemical resistance and outstanding RGD (Rapid Gas Decompression) performance, Kalrez® 0090 O-rings outperformed competitive FFKM seals and exhibited very little or no seal degradation.

Kalrez® 0090 exceeded the performance requirements of 24 months, resulting in significant cost savings by reducing additional maintenance and associated shutdowns while increasing reliability and safety.


The original case study can be found on DuPont's website here.

Gallagher Seals is a Tier 1 Kalrez stocking distributor. If you require project assistance or compound guidance, contact us today.