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HOW TO REDUCE ENERGY CONSUMPTION IN A PUMPING SYSTEM?
What aspects must be taken into account?
  1. Does the characteristic of a piping system changes during the time of operation? What is the longest operating mode. Make ranging of all possible modes. It is useful to fill table with parameters of all operation modes and duration of every mode as a percentage of annual operation. The example of such table is below.

2. It is necessary to have a System curve. What type of losses prevails in the system characteristic -  friction or static head? This fact greatly affects the selection of a pump control method.

 

3.   Keep in mind that the pump must provide all possible modes even if a term of operation is very short or it's possibility is very low.

Recommendations for energy savings in pumping systems are presented in the table below
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