🔧 ESPA ES4 04 4" Submersible Pump with Franklin Motor: complete borehole set
Ready-to-install set with 4" ESPA ES4 04 submersible hydraulic section and Franklin Electric motor. Designed to pump clean water from boreholes for domestic water supply, irrigation, agriculture and industry. Available in 230 V single-phase and 400 V three-phase versions, with power ratings from 1 to 5.5 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
⚙️ Franklin Motor
- ✔ 4" Franklin Electric 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 out
- ✔ Installation vertically or horizontally; compatible with a frequency inverter above 30 Hz
- ✔ NEMA 4" coupling; single-phase models include an external capacitor in the kit
📊 Technical Table by Model
| Model | Motor | Voltage | HP | kW | Hydraulic section length (mm) | Connection |
|---|---|---|---|---|---|---|
| ES4 04/08 | Franklin 4" 0.75 kW | 1x230V | 1 | 0,75 | 345 | 1 1/4" |
| ES4 04/08 | Franklin 4" 0.75 kW | 3x400V | 1 | 0,75 | 345 | 1 1/4" |
| ES4 04/12 | Franklin 4" 1.1 kW | 1x230V | 1,5 | 1,1 | 433 | 1 1/4" |
| ES4 04/12 | Franklin 4" 1.1 kW | 3x400V | 1,5 | 1,1 | 433 | 1 1/4" |
| ES4 04/16 | Franklin 4" 1.5 kW | 1x230V | 2 | 1,5 | 542 | 1 1/4" |
| ES4 04/16 | Franklin 4" 1.5 kW | 3x400V | 2 | 1,5 | 542 | 1 1/4" |
| ES4 04/24 | Franklin 4" 2.2 kW | 3x400V | 3 | 2,2 | 777 | 1 1/4" |
| ES4 04/32 | Franklin 4" 3 kW | 3x400V | 4 | 3 | 965 | 1 1/4" |
| ES4 04/44 | Franklin 4" 4 kW | 3x400V | 5,5 | 4 | 1296 | 1 1/4" |
💧 Total 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: 150 m (motor)
- ✔ Suspended sand: up to 100 g/m³
