The WEDA D81 drainage pump features a max head of up to 276 ft, max flow of 1630 USgpm, and can withstand solids of up to 0.47 in.
The WEDA drainage pumps handle either clean or sand-laden water, even with small solid particles, with the best performance and efficiency. These pumps are designed with robustness, sustained performance and ease-of-maintenance in mind. Suitable for general dewatering applications, ground water, raw water, construction sites and harsh conditions on site.
| Product Specifications | WEDA D91 |
| Installation | Portable drainage pump |
| Hydraulic range | N - Normal Head H - High Head |
| Insulation class | H (+180°C/+356°F) IEC 85 (VFD-ready) |
| Protection class | IP68 |
| Voltage variation | Max ± 5% of nominal voltage |
| Voltage imbalance | Max 2% - between phases |
| Max start-stop | Max 30 starts/hour |
| Cable | H07RN-F (20 m) or SOOW AWG (65 ft) |
| Casted parts | Corrosion resistant aluminum |
| Impeller | High chrome iron, 55±5 HRC |
| Wear parts | Rubber (NBR) |
| Strainer | Corrosion resistant aluminum |
| Shaft | Stainless steel |
| O-rings | Rubber (NBR) |
| Main bearing | Double row ball bearing, pre- greased |
| Mechanical seal | Stainless-steel cartridge-type double mechanical seal SiC/SiC |
| Thermal contacts | 140°C / 284°F |
| Options / accessories | Float switch Zinc anodes Epoxy coating Quick couplings (hose / NPT / ISO-G / Camlock / Storz) Pump raft Terminal board Softstarter NSSHÖU screened cable |
| Product Dimensions Weda D91 | N - Normal Head | H - High Head |
| Solids handling, strainer hole | 0.47 in (12 mm) | 0.47 in (12 mm) |
| Liquid temperature | Max 104°F | Max 104°F |
| Depth of immersion | Max 65 ft | Max 65 ft |
| Max Head | 167 ft | 276 ft |
| Max Flow | 1630 USgpm | 890 USgpm |
| Max liquid specific gravity | 1.1 | 1.1 |
| pH of the pumped liquid | pH 5–8 | pH 5–8 |
| Discharge connection | 6 in | 4 in |
| Height | 42.3 in (1075 mm) | 42.3 in (1075 mm) |
| Width | 18.3 in (465 mm) | 17.3 in (440 mm) |
| Diameter | 16.7 in (425 mm) | 16.7 in (425 mm) |
| Weight (excl. cable) | 422 lbs (190kg) | 422 lbs (190kg) |
WEDA D81 Performance Curve
WEDA D81 Power Curve
WEDA D81 Drainage pumps are used for various general dewatering purposes on construction sites. During construction, it is crucial to remove shallow water and groundwater to keep the project on schedule. The Atlas Copco D81pumps are portable and can be moved where they are needed the most.
Quarries require dewatering for a variety of reasons. In order to mine the aggregate for concrete and other construction materials, it needs to be sufficiently dry at the quarry. The WEDA D81 pumps can provide the dry sump needed for proper working conditions.
