Immersible Pump GRUNDFOS MTS


Screw spindle pumpfor coolant and cutting oil.

Water Pump Product Information (MEI)

Minimum efficinecy index (MEI) means the dimensionsless scale unit for hydraulic pump efficiency at best efficiency point (BEP), part load (PL) and overload (OL). The commision Regulation (EU) sets effiency requirement to MEI > 0.1 as from 1 January 2013 and MEI > 0.4 as from 1 January 2015. An indicative benchmark for best-performing water pump available on the market as from 1 January 2013 is determined in the regulation.

  • The benchmark for most efficiency water pump is MEI ≥ 0.70
  • The efficiency of a pump with a trimmed impeller is usually lower than that of a pump with the full impeller diameter. The trimming, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.
  • The operation of this water pump with variable duty point may be more efficiency economic when controlled, for example, by the use of a variable speed drive that matchess the pump duty to the system.
  • Information on benchmark efficiency is available at http.//
  • The”Year of manufacture” is indicated on the product nameplate with a four digit number which is deconded as folows, YYWW with year (2 digits), e.g. PC 0223 for year 2002 and week 23. The number can be separate or it can be part of the model number, e.g. xxxxPX0223xxxx.

Pump Designs

Immersible Pumps

Technical Data

Head max : 1081 m

Max flow : 55.21 m3/h

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