Location of Rupture Disk

Particularly when a rupture disk is selected because of its quick-opening characteristics, the disk should be installed as close to the protected equipment as practical, with no intervening elbows, etc. While an intervening isolation valve may be installed, the disk should be in a “line of sight” of the equipment’s contents.

Conversely, in applications in which routine pressure surges occur, the rupture disk should be placed in a location that minimizes the severity of the pressure surges. The pressure cycling accompanying such surges can contribute to premature fatigue failure of metal rupture disks.

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