Shutdown tylannitride SNF 2009-07-27 14:30:47: gate valve leaking.

seymour at seymour at
Mon Jul 27 15:45:14 PDT 2009

removed tube gate valve and rebuilt it. checked base and leak rate and they were good. Waited 10 mins with 3 liters N2 flow ( what the recipe calls for for that time) and opened tube in manual. Closed and started pump10.

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