John Tech 4SD8/8 – 1.1kW 4
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John Tech 4SD8/8 – 1.1kW 4" Submersible Borehole Pump
John Tech 4SD 4" submersible borehole pump ends are stainless steel multistage pumps for 100 mm (4") boreholes. The number after the slash is the stage count - more stages give more head at the same flow. The pump end couples to a NEMA-standard 4" motor (sold separately).
Specifications
| Parameter | Value |
|---|---|
| Brand | John Tech |
| Item code | 4SD8/8 |
| Model | 4SD8/8 |
| Nominal flow | 8 m³/h |
| Stages | 8 |
| Motor power | 1.1 kW |
| Horsepower | 1.5 HP |
| Outlet | 40mm |
| Packed size (L x W x H) | 48 x 12 x 12 cm |
| Shipping weight | 4.6 kg (approx.) |
Range specifications
| Pump size | 4" (for 100 mm boreholes and larger) |
| Motor coupling | NEMA 4" |
Features
- Model code: 4SD6/20 = nominal flow 6 m³/h, 20 stages
Applications
- Domestic and farm boreholes
- Water supply and irrigation
Performance
| Flow (m³/h) | 0.0 | 1.2 | 2.4 | 3.6 | 4.8 | 6.0 | 7.2 | 8.4 | 9.6 | 10.8 |
|---|---|---|---|---|---|---|---|---|---|---|
| Head (m) | 51 | 50 | 46 | 43 | 40 | 38 | 35 | 30 | 23 | 15 |
Head at flow from the John Tech / Tesk 4SD catalogue (2850 rpm, 50 Hz).
Complete Specifications, Sizing and Price Guide Click Here.
John Tech 4SD8 Range – Performance Curves
23 kB | Download
John Tech 4SD6 / 4SD8 Range – Technical Data
41 kB | Download
