IN-LINE CENTRIFUGAL PUMPS

3E

PERFORMANCE CURVE SPECIFICATIONS

50Hz

MEI INDEX SPECIFICATIONS

Rev.A

The minimum efficiency index (MEI) is a measure of the quality of a pump size in respect to its mean efficiency.

The minimum efficiency index is based on the hydraulic efficiency and on the head at the best efficiency point.

The efficiency of a pump with trimmed impeller is usually lower than that of a pump with the full impeller

diameter. The trimming of the impeller will adapt the pump to a fixed duty point, leading to a reduced energy

consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.

The operation of these water pumps with variable duty points may be more efficient and economical when

controlled, for example, by the use of a variable speed drive that matches the pump duty to the system.

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EBARA

CORPORATION

PM10U