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Reverse Acting

PSR (Precision Scored Reverse)

The Oseco PSR is a reverse-buckling disk that opens along scored lines and is designed to be non-fragmenting. The PSR rupture disk has a 90% operating ratio for applications requiring a high operating to set pressure ratio. Due to its high operating ratio and non-fragmenting design, the PSR is an excellent choice for the isolation of safety relief valves.

PSR Flyer

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