LEAKAGE OF WATER FROM GASKETED JOINTS PROPOSED FOR THE HWCTR - PART II AND PUMP MECHANICAL SEAL VAPOR LEAKAGE

摘要

The average leakage rate was less than 0.3 pound per year per linear inch of gasket when mockups of typical joints proposed for the reactor vessel and the isolated coolant loops of the HWCTR were subjected to temperature and pressure cycling. The joints, which were exposed to deionized light water, were cycled about 100 times from 70℃ and atmospheric pressure to 250℃ and pressures of 1500 psig for the vessel joints and 750 psig for the joints designed for the isolated coolant loops.nThe average leakage of water vapor from a pump mechanical seal was less than 1.4- lb/yr during a five-month period. The pump circulated deionized water at 260℃ and 850 psig.