💧 ESPA Drainex 400 Wastewater Pump: cast iron, three-phase
The ESPA Drainex 400 is a 3.5 HP three-phase submersible pump for wastewater with solids up to 45 mm. The pump and vortex impeller are made of cast iron. It is switched on via a protection and control panel, using the panel's float switches (panel and installation kit sold separately).
🔩 Materials
- ✔ Pump and impeller: cast iron
- ✔ Shaft: AISI 420
- ✔ Seals: mechanical seal and NBR/EPDM gaskets
🧰 Equipment
- ✔ Cable: 10 m, without plug
- ✔ Sold separately: protection and control panel (CDF 1.4 for 1 pump, CDAF 2.4 for 2 pumps) and portable (DR3.2) or stationary (DR6) installation kit
⚙️ Motor
- ✔ Motor: three-phase 400 V, 2-pole asynchronous
- ✔ Protection: IPX8, class F insulation
- ✔ Duty: continuous
📋 Operating Limits
- ✔ Temperature: maximum water temperature 40 °C
- ✔ Solids passage: up to Ø 45 mm
- ✔ Immersion: maximum 7 m
📊 Technical Table by Model
| Model | V | CV | P2 kW | A |
|---|---|---|---|---|
| Drainex 400 | 3x400V | 3,5 | 2,6 | 4,1 |
| Drainex 401 | 3x400V | 3,5 | 2,6 | 4,6 |
| Drainex 402 | 3x400V | 3,5 | 2,6 | 5,5 |
💧 Head (m) by Flow Rate (m³/h)
| Model | 6 | 12 | 24 | 30 | 36 | 42 | 48 |
|---|---|---|---|---|---|---|---|
| Drainex 400 | 15,9 | 14,1 | 9,7 | 7,2 | 4,4 | - | - |
| Drainex 401 | 18,8 | 17 | 12,6 | 10,1 | 7,3 | 4,4 | - |
| Drainex 402 | 21,5 | 19,5 | 15 | 12,4 | 9,7 | 6,8 | 3,8 |
In the table, each column is a flow rate in m³/h and the value is the head in meters.
🔤 How to Read the Model Numbers
- ✔ 400, 401 and 402: have the same body, dimensions and 3.5 HP motor; the current and performance curve differ: the 402 provides the greatest head and the 400 the least (see table)
- ✔ Without letters: they are three-phase 400 V and do not come with a float switch: they are switched on via the control panel, using the panel's float switches
