Electric self-priming dewatering pump
The same self-priming pump end driven by an electric motor, for sites with a supply. Quieter, cheaper to run, and with nothing to refuel.
Features
- With no engine there is no fuel, no exhaust and no engine service, so the running cost is electricity and seals alone.
- Three-phase units must be checked for rotation on first start; reversed rotation gives reduced flow that looks plausible on a gauge.
- Float or pressure switch control lets the pump cycle unattended without the start reliability concerns an engine brings.
- Motor protection rating and the cable gland decide outdoor survival — the motor rarely fails before the cable entry does.
- Star-delta or soft starting matters on larger motors where the site supply is limited or shared with other plant.
- A supply failure stops dewatering silently, so a high-level alarm is worth specifying on anything that matters.
Specifications
| Figure | Typical range | Unit | Why it matters |
|---|---|---|---|
| Maximum flow | 30 - 250 | m³/h | Compare at duty head, not maximum. |
| Maximum total head | 20 - 60 | m | Decides whether the outfall is reachable. |
| Motor rating | 2.2 - 30 | kW | Sizes the supply, cable and starter. |
| Supply voltage / phase | 230 / 1~ or 400 / 3~ | V | Must match the site board. |
| Motor protection rating | IP 55 | Governs survival standing outdoors. |