Testing of a 'Dura Seal' Rotary Seal,

Tests were run to determine the effectiveness of air cooling, the operating characteristics, and the life expectancy for a 5 12 in. Dura Seal. It was found that air cooling was satisfactory. The power consumed by the seal was generally less than 1000 watts and the leakage of air through the seal less than 0.002 lbsec. The rate of wear of the face of the graphite member varied considerably with conditions however, it appeared that satisfactory performance can be attained only in an installation where the seal is readily accessible and can be adjusted periodically.