Steamdog, tks. for your prompt reply.
My main driver of the question is if it is worth to install a flow meter in the pump by pass line to assure the ARC valve is working OK and the pump is running over minimum flow all the time.
This is a boiler feed water pump, there’s a flow meter in the main...
I’d like to know if it is a normal practice install a flow meter in by-pass line boiler feed water centrifugal pump when an automatic return valve is installed, to assure pump minimum flow is reached all the time and the ARC valve is working OK.
