Rupture Disk

A one-time-use metallic membrane designed to fail at a predetermined positive or vacuum pressure. A rupture disk can be used to protect pressure vessels, equipment, or systems from overpressurization or potentially damaging vacuum conditions. Rupture disks provide instant response to an increase or decrease in system pressure, but once the disk has ruptured it must be replaced. Major advantages of the application of rupture disks compared to using pressure relief valves include leak tightness, cost, response time, size constraints, and ease of maintenance.