🔧 ESPA ES4 01 4" Submersible Electric Pump with Franklin Motor: complete borehole unit
Ready-to-install unit with a 4" ESPA ES4 01 submersible hydraulic section and a Franklin Electric 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 0.75 to 1.5 CV.
✔ 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
⚙️ Franklin Motor
- ✔ Franklin Electric 4" motor, asynchronous, water-filled
- ✔ Construction: NSS motor in AISI 304 stainless steel
- ✔ Insulation class B; voltage tolerance +6% / -10%
- ✔ Starts: up to 20 per hour, spaced apart
- ✔ Installation vertically or horizontally; compatible with a variable-frequency drive above 30 Hz
- ✔ NEMA 4" coupling; single-phase models include an external capacitor in the kit
📊 Technical Table by Model
| Model | Motor | Voltage | CV | kW | Hydraulic section length (mm) | Connection |
|---|---|---|---|---|---|---|
| ES4 01/19 | Franklin 4" 0.55 kW | 1x230V | 0,75 | 0,55 | 481 | 1 1/4" |
| ES4 01/19 | Franklin 4" 0.55 kW | 3x400V | 0,75 | 0,55 | 481 | 1 1/4" |
| ES4 01/26 | Franklin 4" 0.75 kW | 1x230V | 1 | 0,75 | 642 | 1 1/4" |
| ES4 01/26 | Franklin 4" 0.75 kW | 3x400V | 1 | 0,75 | 642 | 1 1/4" |
| ES4 01/38 | Franklin 4" 1.1 kW | 1x230V | 1,5 | 1,1 | 864 | 1 1/4" |
| ES4 01/38 | Franklin 4" 1.1 kW | 3x400V | 1,5 | 1,1 | 864 | 1 1/4" |
💧 Head (m) by Flow Rate (m³/h)
| Model | 0 | 0,3 | 0,6 | 0,9 | 1,2 | 1,5 |
|---|---|---|---|---|---|---|
| ES4 01/19 | 126 | 118 | 105 | 86 | 60 | 30 |
| ES4 01/26 | 173 | 160 | 141 | 117 | 81 | 39 |
| ES4 01/38 | 253 | 234 | 208 | 169 | 117 | 52 |
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: 150 m (motor)
- ✔ Suspended sand: up to 100 g/m³
