canned pump head increase

Hello, Freddy,

The only way is to change the diameter of impeller acc. to Affinity Law, but you must consider the motor rating enogh to cover the extra power or not. Of courrse, if the required impeller size is over the max. impeller size of exiting pump, then, buy a new pump.

Best regarrs,

Tim

Tim,

Thanks for your reaction

Increase head of the pump for in line loading and in line blending from 15m up to 33m.

This can be done by increasing the impeller diameter from 125 to 155 mm.

n=2900/min 22.3m3/hr 1.7kW existing 15m. SS-can.

With the existing SS CAN the electric consumption will be above the 4 kW of the motor. With a ceramic can the electric losses will be reduced with 1.5 kW. Do you know what this mean prob. elektrical losses?

Hi Freddy

To increase the pressure you either have to increase the diameter of the impeller or increase the speed or a combination of both. The max diam & speed are defined by the pump.

Your power requirements as well of class requirement for piping will also rise.

If the pump was designed properly in the first place you will also run at a lower efficiency when you double the pressure.

I would recommend changing the pump and driver and whatever else is needed.

Note: the impeller on a lower pressure pump is usually wider than its high pressure counterpart.