Kyle, Chandra

WP 6463

Today we fed a 1/16" diam. rope wire through the bottom sensing lines of CP 3 & 4. Length of 109.5" penetrated CP4 (measured from the 1/4" swagelock fitting). Length for CP3 was 105.5". The sensing line is 1" longer on CP4 than for CP3 (based on how much it protrudes from nipple welded to CP outer body).

The theoretical length from drawings V049-4-005, V049-4-090, V049-4-121 is 111.7" ....and then add 1.2" for CP3 and 2.2" for CP4 for additional length of swagelock connections.

We felt resistence toward the end, where I thought we were hitting the 90 deg bend just past the bibraze joint (until looking at these measurements more closely); then we were able to push another ~2". Vertical length is 2.25". The gap between the inner and outer vessel wall at the bottom is only 7/8". The last 4-5" of the wire was cold and frosted when we pulled it out. We then cycled between ~1 Torr (diaphragm pump) and 100 psig pressure on CP4 lower sensing line. Did not detect any breakthrough.

We left both CP3 and CP4 upper and lower sensing lines plumbed together through the shunt valve, essentially bypassing the transducer. Currently not pumping or pressurizing CP4 line.