OW-HD submersible sludge and solids-handling drainage pumps for muddy drainage, wastewater sumps, settling ponds, excavation water and solids-laden water handling.
Find the right model Back to product families
OW-HD covers compact and medium-duty sludge drainage where reliability, solids passage and wear resistance matter more than clean-water efficiency.
A cast-iron submersible pump series for muddy water, suspended solids and demanding drainage environments.
The supplied materials list shows a heavy-duty hydraulic end designed for solids-laden water pumping rather than light domestic drainage.
Searchable model data helps buyers compare outlet size, power, capacity, head and solids passage before requesting final pump selection.
| Model | Outlet (mm) | Power (kW) | Rated capacity (m³/h) | Rated head (m) | Max capacity (m³/h) | Max head (m) | Passage (mm) |
|---|---|---|---|---|---|---|---|
| OW-HD21.5 | 50 | 1.5 | 15 | 15 | 27 | 22 | 8.5 |
| OW-HD31.5 | 80 | 1.5 | 30 | 8 | 40 | 14.5 | 8.5 |
| OW-HD22.2 | 50 | 2.2 | 18 | 20 | 33 | 26 | 8.5 |
| OW-HD32.2 | 80 | 2.2 | 36 | 11 | 55 | 19 | 8.5 |
| OW-HD23.7 | 50 | 3.7 | 12 | 30 | 33 | 34 | 8.5 |
| OW-HD33.7 | 80 | 3.7 | 30 | 20 | 55 | 29 | 8.5 |
| OW-HD43.7 | 100 | 3.7 | 60 | 11.5 | 90 | 18.5 | 8.5 |
| OW-HD35.5 | 80 | 5.5 | 36 | 25 | 75 | 34 | 8.5 |
| OW-HD45.5 | 100 | 5.5 | 60 | 16 | 105 | 23 | 8.5 |
| OW-HD47.5 | 100 | 7.5 | 48 | 30 | 84 | 40 | 11.5 |
| OW-HD67.5 | 150 | 7.5 | 90 | 15 | 124.8 | 31 | 19.5 |
| OW-HD411 | 100 | 11 | 60 | 35 | 84 | 48.5 | 11.5 |
| OW-HD611 | 150 | 11 | 102 | 22 | 147 | 32 | 19.5 |
| OW-HD415 | 100 | 15 | 60 | 42 | 84 | 56 | 11.5 |
| OW-HD615 | 150 | 15 | 102 | 30 | 156 | 40 | 19.5 |
Use these figures for preliminary selection. Confirm liquid properties, solids size, voltage, frequency and final duty point with ONE WHALE before ordering.
The supplied OW-HD folder includes performance curves, model table, material list and dimension drawings for sludge and solids-laden drainage selection.
Sludge pump selection should start with solids condition, not only flow rate.
| Main applications | Wastewater works, muddy-water drainage, settling ponds, excavations, site sumps, quarry washdown and industrial sump drainage |
|---|---|
| Selection focus | Solids content, particle size, abrasive grit, required flow rate, total dynamic head, water level, voltage and duty cycle |
| Recommended details to provide | Liquid type, approximate solids percentage, maximum particle size, pH if corrosive, required hose or pipe diameter and installation depth |
| Optional support | Material guidance, spare parts planning, OEM / ODM cooperation and project-specific model matching |
Send us the flow rate, total head, solids particle size, liquid type and voltage. We will recommend a suitable ONE WHALE pump.