Generally applicable highgrade pump that can be used efficiently in draining in civil engineering through to deepwell applications.
Maximum depth of submersion 25m.
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NK | 1-phase / 50Hz
| Model | Colour code curve | Bore mm | Motor output kW | Rated current A | Head max. m | Capacity max. l/min | Dry weight kg w/o cable | Max. solid handling ø mm | Pressure resistance max. m | Cable length m |
|---|---|---|---|---|---|---|---|---|---|---|
| NK4-22 | 50 | 2,2 | 14,8 | 24,0 | 525 | 29,0 | 6 | 25 | 20 | |
| NK3-22L | 80 | 2,2 | 14,5 | 18,0 | 800 | 40,0 | 6 | 25 | 20 |
NK4-22_1.pdf
| 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 | BR+natural rubber, Grey iron casting EN-GJL-200 | |||
| Shaft Seal | Silicon carbide in oil bath | |||
| Motor | Insulation | Insulation class F, Insulation class B | ||
| Lubrication | Turbine oil (ISO VG32) | |||
| Phase / Voltage | Single phase 230V / 50Hz | |||
| Motor Protector (built-in) | Circle thermal cut-out | |||
| Type, Poles | Induction motor, 2 poles, IP68 | |||
| Material | Casing | Aluminium die casting | ||
| Shaft | Stainless steel EN-X6Cr13, Stainless steel EN-X30Cr13 | |||
| Cable | Rubber, 10m H07RN8-F | |||
| Discharge Connection | Threaded flange/Hose coupling | |||
Dimensions in mm:
-
-
- NK4-22
- NK3-22L
W1: lowest running water level
| Model | d | A | A1 | B | B1 | D | H | W1 |
|---|---|---|---|---|---|---|---|---|
| NK4-22 | 50 | 240 | 194 | 546 | 464 | 243 | 614 | 80 |
| NK3-22L | 80 | 235 | 191 | 601 | 519 | 216 | 669 | 120 |
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.
