Product and Performance
Technical Data
| Flow Rate | 22,5 l/min (50Hz) | 23 l/min (60Hz) | ||
| Delivery Head | 3,5 m (50Hz) | 23 l/min (60Hz) | ||
| Temperature Range | -20…+85°C (PP) | -20…+95°C (PPS) | ||
| Max. Specific Gravity | 1,0 Kg/dm3 @ max. 30 mPa s | |||
| Pump Casing Pressure | 1,4 bar | |||
| Pump Casing Material | PP | PPS | ||
| Impeller | PP | PPS | ||
| Spindle Material | Keramik (Alumina ceramic) | |||
| O-Ring | EPDM | NBR | ||
| Motor | 230 V, 1 Ph, 50 Hz | 230 V, 1 Ph, 60 Hz | 110 V, 1 Ph, 50 Hz | 110 V, 1 Ph, 60 Hz |
| Motor Capacity | 84 Watt (Input) 18 Watt (Output) | |||
| IP Protection | IP 22 | |||
| Total Weight | ~ 2,1 kg | |||
Dimensions and component parts
Component Parts
| Pos. | Type | Description | Quantity | Articlel No | Remark |
|---|---|---|---|---|---|
| 1 | NDP 25/4 | Motor | 1 | – | |
| 2 | NDP 25/4 | Fan | 1 | 033322 | |
| 3 | NDP 25/4 | Motor Cover | 1 | 043335 | |
| 4 | NDP 25/4 | Screw | 2 | 001739 | |
| 5 | NDP 25/4 | Drive Magnet | 1 | 023267 | 6mm Bore |
| 6 | NDP 25/4 | Nut | 6 | 001564 | |
| 7 | NDP 25/4 | Spindle Housing | 1 | 003277 | |
| 8 | NDP 25/4 | O-Ring | 1 | 013290 | EPDM |
| 8 | NDP 25/4 | O-Ring | 1 | 021056 | Viton |
| 8 | NDP 25/4 | O-Ring | 1 | 003398 | Nitrile |
| 9 | NDP 25/4 | Impeller | 1 | 023247 | 60 Hz |
| 9 | NDP 25/4 | Impeller | 1 | 023220 | 50 Hz |
| 10 | NDP 25/4 | Pump Body | 1 | 013385 | plain |
| 10 | NDP 25/4 | Pump Body | 1 | 023261 | threaded |
| 11 | NDP 25/4 | Screw | 6 | 001626 |
Article numbers
The part numbers listed are the actual, that have changed in the past several times. When ordering spare parts, the located on the nameplate of the pump Item Number and Serial Number specify.
NDP 10/2: ,, 023939, 033921, 033940, 033942
NDP 14/2: 143912, 163995, 183965, 133939, 133938, 133986, 133983, 173932, 123926, 133922, 113957,, 033951, 043912, 063995, 083965, 033939, 033938, 033986, 033983, 073932, 023926, 033922, 013957;; Heidolph KrP 800/2 523.320.0001, KrP 14/2 523.614.0001
NDP 25/2: 123921, 153982, 113951, 123927, 133923, 163994,, 023921, 053982, 013951, 023927, 033923, 063994;; Heidolph KrP 25/2 25/2 523.625.0001
NDP 25/4: 173901, 173915, 183944, 123902, 173904, 173900, 173952, 173953, 183966, 133987, 123904, 173903,, 073901, 073915, 083944, 023902, 073904, 073900, 073952, 073953, 083966, 033987, 023904, 073903, Mercury MK5, C-6089, C-6574;; Eheim 1030 71 663, Heidolph KrP 25/4 523.625.0001
NDP 35/3: 143985, 173951, 173975, 143904, 173921, 173981, 13539, 163992, 173978, 133934, 133988, 163993, 123928, 133933,, 033924, 043985, 073951, 073975, 043904, 073921, 073981, 03539, 063992, 073978, 033934, 033988, 063993, 023928, 033933, 4803001, Heidolph KrP 35/3 523.635.0001
XDP 14/2: 143966,, 043966
XDP 25/2: 143998, 183952,153994,, 043998, 083952, 053994, 073992