Products
LEO 4XR2/21-1.1
LEO 4XR2/21-1.1 submersible borehole pump
For water supply from wells or reservoirs, domestic and industrial water transfer, and irrigation. Range photograph shown; confirm the supplied pump, motor and control equipment.
Model specifications
| Rated motor output | 1.1 kW |
|---|---|
| Supply | Three-phase 380–415 V, 50 Hz |
| Performance table reference speed | Approximately 2850 rpm |
Individual hydraulic curve and dimensional reference
The curve joins the exact published local hydraulic table points by straight lines. No performance outside those points is assumed. Shut-off head is not the operating duty; select against required flow and total dynamic head.
Published hydraulic points
| Flow (m³/h) | Head (m) |
|---|---|
| 0 | 149 |
| 0.3 | 147 |
| 0.6 | 146 |
| 0.9 | 145 |
| 1.2 | 140 |
| 1.5 | 135 |
| 1.8 | 126 |
| 2.1 | 118 |
| 2.4 | 109 |
| 2.7 | 95 |
| 3 | 82 |
| 3.3 | 67 |
Model dimensions and connections
| P - pump length | 768 mm |
|---|---|
| M(t) - three-phase motor length | 369 mm |
| T(t) - overall length | 1137 mm |
| Standard outlet DN | 1¼ inch |
| Optional outlet DN | 1 or 1½ inch; confirm selected outlet |
Dimensions are the LEO European three-phase reference for this model. Confirm the supplied motor, outlet, cable length, control-box configuration and assembly clearance before installation; regional assemblies may differ. Manufacturer outline is not to scale.
Operating conditions
Published range limits: maximum liquid temperature 35°C; maximum sand content 0.25%; maximum immersion 150 m, subject to the supplied assembly and installation. Four-inch borehole family: check actual casing clearance against the pump, cable and joints. The range sheet specifies IP68 enclosure and class F insulation. Confirm appropriate motor protection and control equipment.