Choosing the right Pump

3 essential steps to choosing the right water pump.

1.

Assess the nature of the water to be pumped
Since all liquids needing pumping do not share the same characteristics, Water pumps are designed for multiple purposes depending on:
a) Quality of Water - clear water and water with little sediment or heavily sediment.
For special liquids (sea water, liquid fertiliser, hydrocarbons ...), contact us for advice.
b) The flow and pressure - required depending on the head losses.

2.

Calculate the height of the elevation required
The elevation is more or less important depending on the configuration of the installation or the application (pumping out, spinkling, irrigation, draining, washing). It is calculated from:
The suction height: - This is the difference in height between the level of the water to be pumped and the axle of the pump. The laws of physics dictate that this cannot exceed 8m above sea level.Performance curve .
The Discharge height: - This is the difference in height between the axle of the pump and the highest point of the network.
The Head Loss: - This is the resistance encountered by the water in the pipes. It is calculated according to the length, diameter and quality of the pipes, their shapes and the number of accessories (for general cases, we take 20%)

Elevation Height = Suction height+Lift height+Head loss


3.

Determine the flow to choose the right output
he flow corresponds to the maximum quantity of water that can be extracted at a given height. It is determined by checking the height of elevation in metres on the curve. The flow in L/min may then be deduced. The height of elevation determines the available pressure. This is divided by 10 to obtain the pressure in bar. If this pressure is not enough, a more powerful model should be selected. The flow and the discharge height are the main criteria used in selecting your water pump.