byrdj:
Your colored lines are all correct. The question mark is a level transmitter. The data come from the mfr's data sheet. Physically, Pump No. 2 is bigger and a bit heavier (20%), with higher flow rate (30%).
JJ Pellin:
The two pumps run with the same rpm.
byrdj:
Thank you for your response.
Please see the attached P&ID of the CO Unit that provides answers to part of your questions.
In reply to your questions regarding logic:
(1) Each pump can be stand-by for the other.
(2) There is no priority for start/run for pump A or B.
(3) It seems there...
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