D.C. Pumps more energy efficient?

[reefer4816]

are D.C. Pumps (Specifically the jaebo pp-15) more energy efficient than the same gph A.c. Pumps?

I feel like I have heard they are but I can't remember when or where I heard this.

 

[Sacohen]

I have heard this too.
Considering that they use a 24 volt (typically) power supply rather than a 120 volt and they are adjustable (meaning you can run them at a slower speed ) I believe they are.
To determine the amount of Watts (or energy) used you need to know how many amps the pump uses and the voltage.
The equation is Watts = Amps × Voltage.
Let's say the pump runs at 4 amps and 24 volts then it uses 96 watts.
Here is a good wattage calculator.
http://www.rapidtables.com/calc/electric/Amp_to_Watt_Calculator.htm

 

[alton]

To find out you will need to have a kilo-watt meter, and a setup of pump, hose and a bucket to see how much water the pumps you have selected will pump at a 5' height. Comparing a AC Panworld 50PXX which states 1100 GPH will pump more water than most, if not all DC pumps rated at 2,000 gph at a 5' height. Although I have never owned a Jebeo DC pump, I did have a AC pump of theirs and it drew twice the wattage that was posted on the pump, so in some cases you can not rely on the manufactures data.

 

[Cabinetman]

I have a dc 12000 jebao and plugged it into a metre that tells how many watts it draws and it was bang on. Moves an insane amount of water