💧 ESPA Acuaria 27 Submersible Pump: multistage stainless steel pump for wells and reservoirs
The ESPA Acuaria 27 is a submersible multistage centrifugal pump for clean water, for domestic, industrial, agricultural and garden use. It is suitable for open wells, tanks and reservoirs. Depending on the model, it delivers flow rates of up to 7.2 m³/h (120 l/min) and heads of up to 70 m.
🔩 Materials
- ✔ Pump body, suction, delivery, filter and impellers: AISI 304 stainless steel
- ✔ Shaft: AISI 431
- ✔ Diffusers: technopolymer
- ✔ Seals: double mechanical seal and NBR/EPDM gaskets
🧰 Equipment
- ✔ MA model: with a level switch (float)
- ✔ M and T models: without a level switch
- ✔ Cable: 15 m without plug; single-phase models have an external capacitor
- ✔ Non-return valve: not included
- ✔ Outlet: 1”
⚙️ Motor
- ✔ Motor: 2-pole asynchronous, water-cooled
- ✔ Protection: IPX8, class F insulation
- ✔ Duty: continuous; single-phase models have built-in thermal protection
📋 Operating Limits
- ✔ Temperature: maximum water temperature 40 °C
- ✔ Immersion: maximum 12 m
📊 Technical Table by Model
| Model | V | CV | P2 kW | P1 kW | A | µF | Height mm | Ø mm | kg |
|---|---|---|---|---|---|---|---|---|---|
| Acuaria 27 4 M | 1x230V | 1,2 | 0,9 | 1,5 | 7 | 16 | 552 | 138 | 20 |
| Acuaria 27 4 MA | 1x230V | 1,2 | 0,9 | 1,5 | 7 | 16 | 552 | 138 | 20 |
| Acuaria 27 6 MA | 1x230V | 2 | 1,5 | 2,2 | 10,8 | 25 | 665 | 138 | 24 |
| Acuaria 27 6 T | 3x400V | 2 | 1,5 | 2,1 | 3,8 | - | 665 | 138 | 24 |
| Acuaria 27 4 T | 3x400V | 1,2 | 0,9 | 1,4 | 2,5 | - | 552 | 138 | 20 |
| Acuaria 27 6 M | 1x230V | 2 | 1,5 | 2,2 | 10,8 | 25 | 665 | 138 | 24 |
💧 Head (m) by Flow Rate (m³/h)
| Model | 1,2 | 1,8 | 2,4 | 3,0 | 3,6 | 4,8 | 6,0 | 7,2 |
|---|---|---|---|---|---|---|---|---|
| Acuaria 27 4 | 43 | 42 | 41 | 39 | 38 | 31 | 23 | 14 |
| Acuaria 27 6 | 68 | 66 | 64 | 61 | 57 | 47 | 36 | 24 |
In the table, each column represents a flow rate in m³/h, and the value is the head in metres.
🔤 How to Read the Reference
- ✔ 4, 6: number of stages (impellers); more stages mean greater head
- ✔ M: single-phase, 230 V
- ✔ MA: single-phase automatic, with a float switch that turns the pump on and off according to the water level
- ✔ T: three-phase, 400 V
