PSR – Precision Scored Reverse

The Oseco PSR is a reverse-buckling rupture disc boasts a non-fragmenting design which has been designed to open along the scored lines on the vent side to reduce buildup of process media and contamination. 

Its 90% operating ratio is ideal for use in applications that require a high operating to set pressure ratio.  As such, the PSR exhibits an excellent service life in high cycling applications. 

These features also make the PSR a formidable choice for the isolation of safety relief valves. Installing the leak-tight
PSR rupture disk between the process media and the safety
relief valve protects the valve and prevents emissions to the atmosphere.