The OK and NK-series circulation pumps are powerful units having a capacity between 13 and 33 m3/h. With the housing moulded in plastic, the pumps are completely saltwater resistant. To improve the operating characteristics OK and NK pumps have an integrated prefilter and the impeller shaft has a rotating seal.
| Type | NK 25 |
NK 33 |
| m³/h at 10 m | – | 4.0 |
| Max. flow at 5 m | 8,000 l* | 11,000 l* |
| Max. head | 9.25 m | 11 m |
| Power (watt) | 0.27 | 0.30 |
| A V |
230 | 230 |
| Dimensions cm (l x w x h), app. |
43 x 21 x 27 | |
* max. flow at 3 m
Motor protection switch (necessary to use with any NK or OK pump)!
Warranty is void, if pumps are used without motor protection switch!
