Pressure assist pump

[mcdeal]

Since my pump is an "on demand" constant pressure pump, can I reduce the pressure by reducing the line voltage to the pump motor?

Im looking for an alternative to a pressure reducing valve....

 

[Matt30]

What constant pressure system do you have? The Pentek Intellidrive and Franklin SubDrive systems can increase/decrease the pressure by adjustments at the pressure sensor.

If you reduce the voltage to the motor, you will achieve nothing except end up with no water at all.

 

[speedbump]

You can change the speed of a motor by varying the cycles from 60 to something else. Reducing the voltage would lead to a burned up motor. The systems Matt mentioned use the variable cycle method. A transducer measures the pressure which tells the drive what to do to keep it there.

A constant pressure valve will totally confuse a variable drive. But for a regular pump they work great.