🏊 ESPA Nadorself Counter-Current Swimming Pump
The ESPA Nadorself creates a strong water current in the pool to swim against. It is self-priming up to 4 m and comes in 3 HP (single-phase or three-phase) and 4 HP (three-phase) versions. 2 1/2" connections; unions sold separately.
🔩 Materials
- ✔ Body, impeller, diffuser, suction inlet, and discharge outlet: made of technopolymer
- ✔ Shaft: AISI 431
- ✔ Seal: mechanical seal and NBR/EPDM gaskets
- ✔ Motor housing: aluminum
🧰 Equipment
- ✔ Cable: no cable
- ✔ Connections: 2 1/2”; unions not included
⚙️ Motor
- ✔ Motor: 2-pole asynchronous
- ✔ Protection: IPX5, class F insulation
- ✔ Duty: continuous; the single-phase version has built-in thermal protection
📋 Operating Limits
- ✔ Temperature: maximum water temperature 40 °C
- ✔ Salt water: compatible up to 7 g/l
📊 Technical Table by Model
| Model | V | HP | P2 kW | P1 kW | A | µF |
|---|---|---|---|---|---|---|
| Nadorself 300 M | 1x230V | 3 | 2,2 | 3 | 13,4 | 60 |
| Nadorself 300 | 3x230/400V | 3 | 2,2 | 3 | 8,6 / 5 | - |
| Nadorself 400 | 3x230/400V | 4 | 3 | 3,4 | 11,8 / 6,8 | - |
💧 Head (m) by Flow Rate (m³/h)
| Model | 6 | 12 | 24 | 36 | 48 | 60 | 72 | 78 |
|---|---|---|---|---|---|---|---|---|
| Nadorself 300 M | 14,6 | 14 | 12,8 | 11,3 | 9 | 6,5 | - | - |
| Nadorself 300 | 14,6 | 14 | 12,8 | 11,3 | 9 | 6,5 | - | - |
| Nadorself 400 | 17,2 | 16,6 | 15,3 | 13,8 | 11,6 | 9,4 | 6,3 | 4,5 |
In the table, each column represents a flow rate in m³/h, and the value is the head in meters.
🔤 How to Read the Model Numbers
- ✔ 300 and 400: the 400 has more power (4 HP) and delivers more flow and head; the 300 has 3 HP
- ✔ M: single-phase, 230 V
- ✔ Without M: three-phase, 230/400 V
