Double-disc

Elfab has added a new design to its existing pressure-relief assembly range that prevents environmental contamination in severe process conditions.

The Double-Disc Assembly comprises primary and secondary bursting discs that are both reverse-acting, both forward-acting or now a combination of the two, plus a pressure gauge or switch to monitor the space between the discs. The product aims to help the increasing number of companies facing the pressures of zero emissions and other environmental concerns.

In the event of chemical attack causing pinholing of the primary disc, the secondary disc prevents pollution of the environment, while the intermediate pressure sensor alerts process managers and maintenance teams to the need to replace the disc that has operated.