European Oil and Gas Issue 113 Final Edition

Page 47

HEROSE herose.co.uk

Services High quality cyrogenic valves

europeanoilandgas.co.uk

As a leading manufacturer of fittings for cryogenic technology and pressure vessel construction, for more than more than 140 years HEROSE has dealt with the safe handling of technical gases, vapours and liquids. Certificates from classification societies such as ‘Det Norske Veritas’, for example, confirm the adherence to the most stringent standards. Already in 2007, TĂœV approval in accordance with EN 12567 was obtained for the stainless steel cryogenic valves. This standard defines the general requirements for the suitability of globe valves used in the manufacture, storage and transportation of liquid natural gas. Special attention was paid

to the standard reference to the fire resistance test in accordance with EN ISO 10497, which must be performed upon customer request. This international standard defines the requirements and methods for the evaluation of the functionality of valves exposed to a fire under defined conditions. The fire duration was defined as the maximum time required for extinguishing most fires. HEROSE currently views the market as divided into two sections. On the one hand, fittings with fireproof approval are generally required for ships and LNG terminals, i.e. the valves must have been approved in accordance with EN 12567 and EN ISO 10497. On the other hand, the fittings need only have EN12567 approval for the remaining onshore installations. Dependent on the operator's safety concept, isolating valves with fireproof approval are, however, also used. As a consequence there must be a smooth transition between the two requirements (EN 12567 approval or EN ISO 10497 approval) and a clear separation is not possible!

HEROSE

European oil & gas

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