🔧 ESPA ES4 12 4" Submersible Pump with Coverco Motor: complete borehole assembly
Ready-to-install assembly with a 4" ESPA ES4 12 submersible hydraulic section and Coverco motor. Designed to pump clean water from boreholes for domestic water supply, irrigation, agriculture and industry. Available in single-phase 230 V and three-phase 400 V versions, with power ratings from 2 to 7.5 HP.
✔ ES4 hydraulic section
- ✔ Body, suction, discharge and shaft: AISI 304 stainless steel
- ✔ Diffusers and impellers: floating, made of technopolymer
- ✔ Gaskets: NBR/EPDM
- ✔ Built-in check valve
- ✔ Coupling: NEMA MG1-18.388 standard
⚙️ Coverco Motor
- ✔ Coverco motor, 4", oil-filled, rewindable
- ✔ Construction: AISI 304 stainless steel sleeve
- ✔ Insulation class F; voltage tolerance +6% / -10%
- ✔ Starts: up to 30 per hour, spaced apart
- ✔ Installation vertically or horizontally; accepts a variable frequency drive above 30 Hz
- ✔ NEMA 4" coupling; single-phase models include an external capacitor in the kit
📊 Technical Specifications by Model
| Model | Motor | Voltage | HP | kW | Hydraulic section length (mm) | Connection |
|---|---|---|---|---|---|---|
| ES4 12/07 | Coverco 4" 1.5 kW | 1x230V | 2 | 1,5 | 534 | 2" |
| ES4 12/07 | Coverco 4" 1.5 kW | 3x400V | 2 | 1,5 | 534 | 2" |
| ES4 12/10 | Coverco 4" 2.2 kW | 3x400V | 3 | 2,2 | 690 | 2" |
| ES4 12/14 | Coverco 4" 3 kW | 3x400V | 4 | 3 | 989 | 2" |
| ES4 12/19 | Coverco 4" 4 kW | 3x400V | 5,5 | 4 | 1195 | 2" |
| ES4 12/26 | Coverco 4" 5.5 kW | 3x400V | 7,5 | 5,5 | 1559 | 2" |
💧 Head (m) by Flow Rate (m³/h)
| Model | 0 | 6,0 | 8,4 | 10,8 | 13,2 | 15,6 |
|---|---|---|---|---|---|---|
| ES4 12/07 | 45 | 37 | 33 | 28 | 22 | 14 |
| ES4 12/10 | 64 | 54 | 48 | 41 | 32 | 20 |
| ES4 12/14 | 89 | 76 | 67 | 56 | 43 | 28 |
| ES4 12/19 | 120 | 102 | 91 | 76 | 58 | 37 |
| ES4 12/26 | 163 | 136 | 120 | 100 | 75 | 48 |
In the table, each column is a flow rate in m³/h, and the value is the head in meters.
📋 Operating Limits
- ✔ Maximum water temperature: 30 °C (motor limit)
- ✔ Maximum depth: 250 m (motor)
- ✔ Suspended sand: up to 100 g/m³
