Double disc solution
July 1st 2004 A pressure-relief assembly has been designed by Elfab to prevent environmental contamination in severe process conditions.
The Double-Disc Opti-Gard comprises primary and secondary bursting discs, plus a pressure gauge or switch to monitor the space between the discs. In the event of chemical attack causing pinholing of the primary disc, the back-up prevents pollution of the environment, while the intermediate pressure sensor warns process managers and maintenance teams of the need to repair the primary disc.
The Opti-Gard disc comes with a 5% tolerance as standard, wetted parts are made from corrosion-resistant Hastelloy C267, and the assembly meets NACE MRO175. More articles from Elfab Limited: | 
