CAL-VAC® / POS-A-SET® Rupture Disc Assemblies0 pages

CAL-VAC® / POS-A-SET ®
Rupture Disc Assemblies
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The CAL-VAC / POS-A-SET Rupture Disc
Assembly is a highly accurate, double acting
pressure relief device designed to protect
processing and storage tanks against implosion or
overpressure condition that can occur:
• when too much vacuum is pulled
during liquid product withdrawal
• during hot water or steam cleaning of tanks
• from development of an
abnormal process condition

CAL-VAC Assembly

Both designs relieve pressure settings starting
as low as 1" water column differential.
The difference in performance of the
CAL-VAC Rupture Disc and
the POS-A-SET Rupture Disc is how each one
is installed (oriented) in the system.
The CAL-VAC Rupture Disc relieves
ultra low pressure in the vacuum (negative)
pressure direction, while the POS-A-SET
Rupture Disc relieves ultra low pressure
in the positive pressure direction.

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POS-A-SET Assembly