Fire integrity of flanges

Over the last couple of years, we have developed a scheme for analysis of fire integrity of flanges. The development was triggered by requirements put forward by Statoil in Statoil’s technical requirements document TR3003 and in Guidelines for the Protection of Pressurised Systems Exposed to Fire (Scandpower). The scheme makes use of flange models that are modelled in Brilliant, and VessFire for calculation of leak rates.

Fire tests of flanges were performed at the SP Fire Research laboratory in Trondheim, supported by Statoil and Trelleborg.