There are many indications that end users should not use a valve for flow control—or at least not to extremes.
Understand pump metallurgy
Dr. Nelik (aka “Dr. Pump”) is president of Pumping Machinery LLC, an Atlanta-based firm specializing in pump consulting, training, equipment troubleshooting and pump repairs. Nelik has more than 30 years of experience in pumps and pumping equipment. He may be reached at firstname.lastname@example.org.