🔧 ESPA ES4 04 4" Submersible Pump with O4I Motor: complete borehole set
Ready-to-install set with 4" ESPA ES4 04 submersible hydraulic section and ESPA O4I 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
⚙️ O4I Motor
- ✔ 4" ESPA O4I motor, 2-pole asynchronous, oil-cooled
- ✔ Housing and shaft: AISI 304 stainless steel
- ✔ IPX8 protection and class F insulation
- ✔ Continuous operation; single-phase model has built-in thermal protection
- ✔ Cable without plug and external capacitor for single-phase models
📊 Technical Table by Model
| Model | Motor | Voltage | HP | kW | Hydraulic section length (mm) | Connection |
|---|---|---|---|---|---|---|
| ES4 04/08 | O4I 100M | 1x230V | 1 | 0,75 | 345 | 1 1/4" |
| ES4 04/08 | O4I 100 | 3x400V | 1 | 0,75 | 345 | 1 1/4" |
| ES4 04/12 | O4I 150M | 1x230V | 1,5 | 1,1 | 433 | 1 1/4" |
| ES4 04/12 | O4I 150 | 3x400V | 1,5 | 1,1 | 433 | 1 1/4" |
| ES4 04/16 | O4I 200M | 1x230V | 2 | 1,5 | 542 | 1 1/4" |
| ES4 04/16 | O4I 200 | 3x400V | 2 | 1,5 | 542 | 1 1/4" |
| ES4 04/24 | O4I 300M | 1x230V | 3 | 2,2 | 777 | 1 1/4" |
| ES4 04/24 | O4I 300 | 3x400V | 3 | 2,2 | 777 | 1 1/4" |
| ES4 04/32 | O4I 400 | 3x400V | 4 | 3 | 965 | 1 1/4" |
| ES4 04/44 | O4I 550 | 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 total head in meters.
📋 Operating Limits
- ✔ Maximum water temperature: 35 °C (motor limit)
- ✔ Suspended sand: up to 100 g/m³
