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Hello everyone,

We are having multiple failures (at least 10)  of rupture discs in four skids of the same design and wanted to seek out your advice.  The set pressure of the discs are 100 psig but they tend to burst around 50-60 psig after a period of operation.  

Below is a rough sketch of the location orientation of the burst disc. It is installed at a location of a tee that the liquid hits it directly before changing path at a right angle. The disc is protecting a heat exchanger upstream of it which has a centrifugal pump further upstream. The pump feeds through the bottom of a CIP tank.