Wobbling Pump

It doesn't matter whether the pump wobbles or not. The work done by any pump is the product of the pressure rise and the volumetric flowrate. All one has to do is select compatible units to get the work done.

Different types of pumps are inherently more (or less) efficient than others. Don't forget to divide the power added to the fluid by the pump efficiency (less than one obviously) to get power required to run the pump.

Also, if you are using pressurized water to drive the pump (which is what I think you said) you will also need to account for the efficiency of the turbine (device that converts engergy from the pressurized water to mechanical energy to drive the pump.) I assume that these two devices are integrated so hopefully the manufacturer will provide overall efficiency of the turbine and pump combined.

Thank you 'dhanishd' I never knew what a wobble pump was untill today.

Now I do:-

http://www.animatedsoftware.com/pumpglos/wobble.htm

It says it can develop incredible pressures, so are you thinking of a water jet cutter?