[Esr-users] SHMS Warm return valves

Steven Lassiter lassiter at jlab.org
Fri Jun 7 10:40:40 EDT 2019


Hello,


 Hall C will be adding Helium pressure switches to activate the warm return valves in the event of a PLC module fault.

Testing of the devices will commence today.

There should be no impact on the system as the valves will only be open 2 to 3%, It takes an opening of 15% to crack the ball valve enough for flow to begin.


Steven
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