Rupture Disk Inlet and Outlet Piping

The hydraulic performance requirements of pressure relief valve inlet and outlet lines are rooted primarily in the opening and closing behavior of the various types of valves. Since rupture disks operate fundamentally differently from pressure relief valves, their inlet and outlet lines do not have to meet the same hydraulic performance requirements. Rupture disk connecting lines need only to be only be large enough to allow the entire rupture disk/piping system to have a flow capacity at least as large as the required relief load. Accordingly, rupture disk inlet and outlet lines are sized in the same process as sizing the disk itself, as described in Item 2, “Rupture Disk Sizing Using Pipe Flow Equations (KR Method)”

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