The Atlas Copco WEDA D04BN is a 0.5 HP submersible drainage pump with a 1″ NPT discharge — the small-port variant of the D04N, suited to clean-water dewatering with tighter discharge hose.
Key Features
- 0.5 HP submersible motor — oil-filled, IP68
- 42 GPM max flow / 39 ft max head
- 1″ NPT discharge connection
- 0.18″ max solid pass-through — handles trash water
- Hardened impeller and stainless-steel wear plate
- Stainless-steel handle, double mechanical seal
- CSA / UL listed for North American use
- Multiple voltage options — see variants below
Ideal Applications
- Construction site dewatering
- Mining and tunneling water removal
- Flood and basement pump-out
- Wellpoint and pond transfer
- Industrial sump and process water
Specifications
| Model | WEDA D04BN |
|---|---|
| Impeller / Head Class | standard / 1″ discharge |
| Horsepower | 0.5 HP |
| Max Flow | 42 gpm |
| Max Head | 39 ft |
| Shaft Speed | 3500 rpm |
| Rated Output | 0.4 kW |
| Max Power Input | 0.7 kW |
| Discharge | 1″ NPT |
| Max Solids | 0.18″ |
| Weight | 21 lb |
| Height | 16.3 in |
| Diameter | 8.7 in |
| Warranty | 12 months from start-up / 18 months from receipt (whichever comes first) |
| Country of Origin | Sweden / China assembly |
Why Buy From A1 Compressor Warehouse
- Authorized Atlas Copco dealer — full factory warranty support.
- Free application sizing — call (803) 526-5797 or email [email protected] before you order.
- Same-day quote response, 24-hour order processing.
- Direct-to-consumer pricing — no middleman markup.








