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In-line pumps with integrated frequency converter

Hospitals, health centres and nursing homes, Residential construction, Schools and kindergartens, Shops, shopping centres and commercial properties, Spas and swimming baths, The primary side of district heating
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Bronze and acid-proof steel

Kolmeks SC, MD and NC series pumps are variable frequency converter-drive-based centrifugal pumps. The material options for our pumps with an integrated frequency converter are cast iron, bronze and acid-resistant steel.  The SC and MD variable speed drive pump series are often deployed in heating, air conditioning, cooling and LTO systems, heat exchangers, and pressure boosting.

The NC series pumps can be used as circulating, pressure boosting and transfer pumps for clean liquids. The NC series pumps are most commonly deployed in centres requiring a power plant, the primary side of district heating and industry.

VS pump series is no longer available; it has been replaced with the MD series.

Technical data


MD, NC, SC, VS (obsolete)

Flow rate

0 – 70 l/s

Maximum pump head


Liquid temperature range

-25 … +180°C

Motor power range

0,08 – 15kW


Air conditioning systems, Domestic water, Heating systems, Industrial systems, Open systems


Hot and cold oxygenated water, Chlorinated water, Sea water, Alcoholic solutions, Other heat transfer fluids

Nominal pressure

PN10, PN16


MD pump with integrated frequency converter

NC-pump with integrated frequency converter

VS-pump with integrated frequency converter (Obsolete)