Double rupture disc assembly

Adding to its pressure-relief assembly range, Elfab has introduced a design to prevent 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 a combination of the two, 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 secondary disc prevents pollution of the environment, while the intermediate pressure sensor alerts staff to the need to replace the disc that has operated.

The device is available in various materials, from stainless steel to Hastelloy and Duplex.