The Oseco PSR (Precision Scored Reversing) rupture disk is designed and manufactured for high-performance and demanding rupture disk applications.

The reverse-buckling disc is scored on the vent side to reduce buildup of process media and contamination. It opens along scored lines and is designed to be non-fragmenting.

Combined with a 90% operating ratio, these features make the PSR an excellent choice for applications requiring a high operating to set pressure ratio and for isolating safety relief valves. Installing the leak-tight PSR rupture disk between the process media and the safety relief valve protects the valve and prevents fugitive emissions.