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Leak Tests conditions

Leak Tests conditions. Summer has come and we are under a steel un-insulated roof. Giving rapid temp changes through IR transfer both at day & night. 1 Day. Results. SM002 3.5E-04 [ mbar.l /s] SM003 5.5E-03 [ mbar.l /s] SM004 1.26E-05 [ mbar.l /s ] SM005 1.58 E-04 “U” changed

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Leak Tests conditions

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  1. Leak Tests conditions • Summer has come and we are under a steel un-insulated roof. Giving rapid temp changes through IR transfer both at day & night. 1 Day

  2. Results • SM002 3.5E-04 [mbar.l/s] • SM003 5.5E-03 [mbar.l/s] • SM004 1.26E-05 [mbar.l/s] • SM005 1.58E-04 “U” changed • SM006 1.02E-04 [mbar.l/s] • SM007 3.17E-04 [mbar.l/s] • SM008 1.25E-02[mbar.l/s]Needs rework

  3. Correct assembly & tightening All Ferrules will be verified for presence and orientation. All of the locknuts x4/ch and all nuts x8 must be checked at each step of assembly The correct tools must be used, 17mm and no adjustable spanners, as the jaws are too wide.

  4. Conclusions • The conditions in 904 during summer are not excellent, IR from the un-insulated steel roof. • Cooling Jig works. • Template for the calculation of leak rate almost ready. • The chambers are not ready for SM assembly. • The “U” & “C” pipes are giving problems for the SM assembly as shown by the leak test. No clear evidence is visible. • Correct assembly technique is essential, There are 24 points to control during SM assembly. • Re check doubtful cases in QC4 lab ?

  5. Curious log plot

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