How to calculate the pipeline pressure losses within the framework of water pumping?
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Pressure loss calculation in water distribution
The selection of a well, drilling or surface pump is made depending on the water demand (flow) and the manometric delivery head.
The total manometric head (TMH) includes the pressure loss resulting from the water friction in the pipelines. This pressure loss is expressed in meters of water column.
In the table below, the pressure losses are provided in cm/m.
Example: Flow 2 m³/h, pipe diameter 1″ (26×34), pipe length 100 m.
>> Pressure loss (m) = 9 cm/m x 100 m = 9 m
If the pressure loss exceed 5 to 10 m or if is in the shaded part of the table, that means you need to choose different pipes with a larger diameter.
Pressure loss table in a pipeline / source GRUNDFOS
To know more: how to choose a submersible pump for wells