High performance seals from Dichtomatik
25 Feb 2015
Increasing oil extraction pressures and temperatures, aggressive chemicals and rapid gas decompression (RGD) in new, more difficult drilling sites are creating operating environments beyond the capabilities of most elastomers.
DuPont Kalrez 0090 (K-312 “A” O-rings) perfluoroelastomer sealing parts, however, were developed to provide enhanced rapid gas decompression resistance in aggressive environments and have received the industry best “0000” rating in accordance with the NORSOK M-710 Rev. 2 standard and TOTAL GS EP PVV 142 specification.
These products, which are available from UK authorised distributor Dichtomatik, provide the optimum balance of chemical, heat and mechanical properties for different chemical and oil and gas sealing applications.
The key performance characteristics of Kalrez 0090 seals include:
- Resistance to rapid gas decompression, certified to highest 0000 rating in NORSOK M-710, Rev. 2 laboratory tests made with Kalrez 0090 K-312_ “A_ O-rings
- Withstands attack by over 1800 chemicals, and resists ageing in sour fluid, including multi-phase fluids containing high concentrations of hydrogen sulphide
- Retains high levels of elasticity, recovery and extrusion resistance even after long-term exposure to temperatures as high as 250°C and as low as -40°C in high pressure environments.
- Although Kalrez 0090 parts are a high hardness perfluoroelastomer, it remains elastomeric with low compression set under most aggressive HPHT environments.
For more information, please visit: www.dichtomatik-kalrez.co.uk
