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Edward Lowton
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Certification for seals
06 June 2013
The DuPont Kalrez 0090 perfluoroelastomer O-ring seals, available in the UK from Dichtomatik, has gained the Total GS EP PVV 142 certification, being the industry standard for sealing products supplied for use with piping, valves and vessels.
The Kalrez 0090 range provides a high degree of resistance to rapid gas decompression (RGD), combined with a broad chemical resistance for use within harsh industrial environments.
This latest certification complements the NORSOK M-710 certification for these products, which specifically covers ‘downhole’ applications applicable to the oil and gas industries.
In third party tests to stringent globally recognised standards, Kalrez 0090 O-ring seals gained the best possible rating (0000) when subject to repeated rapid gas decompression conditions. This rating demonstrates compliance with the specifications of ‘no cracks or blisters visible on the O-ring’s cross section after the test’.
Critical seal parts are said to withstand attack from more than 1800 chemical substances.
