Pump Outs, General and D0 Considerations
Description:
Seal Pump Outs (PO) are provided by specifically designing and providing redundant, or double, seals to create an annular volume that can be '(vacuum) pumped out' to test the integrity of both seals. The value of the technique is most readily apparent in the construction of large piping systems or vessels whose closure is on a different schedule than the nozzle closures, or whose nozzles are serially closed. In the case of D0, for instance, the high voltage boxes were put in place and leak chec…
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Date:
December 25, 1990
Creator:
Mulholland, G.T.
Partner:
UNT Libraries Government Documents Department