maintain constant head in centrifugal pum by using variable frequency

[17021982]

iwant know how to maitain costant head in centrifugal pump by using vfd (veriable frequency drive)
formula and method

 

[dicksewerrat]

Call the pump manufacturer

Richard A. Cornelius, P.E.

http://WWW.amlinereast.com

 

[hydrae]

the drive mfg will program the drive using a PID loop
you will need a setpoint, time interval and gain for tuning the PID loop so it will maintain pressure

 

[PEDARRIN2]

Put a pressure regulator downstream of the pump with a pressure gage to tell you that you have the correct pressure.