🔧 ESPA ES4 04 4" Submersible Pump with Coverco Motor: complete borehole assembly
Ready-to-install assembly with a 4" ESPA ES4 04 submersible hydraulic section and a 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 1 to 5.5 hp.
✔ ES4 hydraulic section
- ✔ Body, intake, discharge and shaft: AISI 304 stainless steel
- ✔ Diffusers and impellers: floating, made of technopolymer
- ✔ Seals: NBR/EPDM
- ✔ Built-in check valve
- ✔ Coupling: NEMA MG1-18.388 standard
⚙️ Coverco motor
- ✔ 4" Coverco motor, oil-filled, rewindable
- ✔ Construction: AISI 304 stainless steel sleeve
- ✔ Insulation: Class F; voltage tolerance +6% / -10%
- ✔ Starts: up to 30 per hour, at spaced intervals
- ✔ Installation vertically or horizontally; compatible with a frequency inverter above 30 Hz
- ✔ NEMA 4" coupling; for single-phase models, the external capacitor is included in the kit
📊 Technical Specifications by Model
| Model | Motor | Voltage | hp | kW | Hydraulic section length (mm) | Connection |
|---|---|---|---|---|---|---|
| ES4 04/08 | Coverco 4" 0.75 kW | 1x230V | 1 | 0,75 | 345 | 1 1/4" |
| ES4 04/08 | Coverco 4" 0.75 kW | 3x400V | 1 | 0,75 | 345 | 1 1/4" |
| ES4 04/12 | Coverco 4" 1.1 kW | 1x230V | 1,5 | 1,1 | 433 | 1 1/4" |
| ES4 04/12 | Coverco 4" 1.1 kW | 3x400V | 1,5 | 1,1 | 433 | 1 1/4" |
| ES4 04/16 | Coverco 4" 1.5 kW | 1x230V | 2 | 1,5 | 542 | 1 1/4" |
| ES4 04/16 | Coverco 4" 1.5 kW | 3x400V | 2 | 1,5 | 542 | 1 1/4" |
| ES4 04/24 | Coverco 4" 2.2 kW | 3x400V | 3 | 2,2 | 777 | 1 1/4" |
| ES4 04/32 | Coverco 4" 3 kW | 3x400V | 4 | 3 | 965 | 1 1/4" |
| ES4 04/44 | Coverco 4" 4 kW | 3x400V | 5,5 | 4 | 1296 | 1 1/4" |
💧 Head (m) by Flow Rate (m³/h)
| Model | 0 | 2,4 | 3,0 | 4,2 | 5,4 | 6,0 |
|---|---|---|---|---|---|---|
| ES4 04/08 | 51 | 46 | 43 | 35 | 24 | 18 |
| ES4 04/12 | 77 | 71 | 68 | 57 | 41 | 31 |
| ES4 04/16 | 102 | 96 | 92 | 77 | 57 | 46 |
| ES4 04/24 | 151 | 139 | 132 | 111 | 80 | 62 |
| ES4 04/32 | 203 | 185 | 175 | 146 | 105 | 80 |
| ES4 04/44 | 278 | 260 | 247 | 210 | 159 | 127 |
In the table, each column represents 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
