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NK | 1-phase / 50Hz

Generally applicable highgrade pump that can be used efficiently in draining in civil engineering through to deepwell applications.
Maximum depth of submersion 25m.

Performance curves

Kurve_U.jpg

Specifications

ModelColour code curveBore mmMotor output kWRated current AHead max. mCapacity max. l/minDry weight kg w/o cableMax. solid handling ø mmPressure resistance max. mCable length m
NK3-22 50 2,2 13,5 24,0 525 29,0 6 25 20
NK3-22L 80 2,2 14,5 18,0 800 40,0 6 25 20

Material

ø Discharge bore mm 50, 80
Pumping Fluid Temperature 0-40°C
Type of Fluid Spring water, Rain water, Ground water, Sand carrying water
Pump Compo- nents Impeller Semi-Vortex impeller
Shaft Seal Double mechanical seal
Bearings Shielded ball bearings
Material Impeller Ductile iron casting EN-GJS-700-2, Chromium iron casting
Casing Ethylene propylene rubber, Grey iron casting EN-GJL-200
Shaft Seal Silicon carbide in oil bath
Motor Type, Poles Induction motor, 2 poles, IP68
Lubrication Turbine oil (ISO VG32)
Motor Protector (built-in) Circle thermal cut-out
Insulation Insulation class B
Phase / Voltage Single phase 230V / 50Hz
Material Casing Aluminium die casting
Shaft Stainless steel EN-X6Cr13, Stainless steel EN-X30Cr13
Cable Rubber, H07RN-F
Discharge Connection Threaded flange/Hose coupling

Dimensions in mm:

  • NK3-22
  • NK3-22L

W1: lowest running water level
ModeldAA1BB1DHW1
NK3-2250240187555473240623120
NK3-22L80235191601519216669120


In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. In this regard, please pay attention to our website www.tsurumi.eu/english/applications.htm.