John Tech 4SD2/8 – 0.37kW 4" Submersible Borehole Pump
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John Tech 4SD2/8 – 0.37kW 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).
Model specifications
| Nominal flow | 2 m³/h |
| Stages | 8 |
| Motor power | 0.37 kW |
| Horsepower | 0.5 HP |
| Outlet | 32mm |
| 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 table
| Flow Q (m³/h) | 0 | 0.3 | 0.6 | 0.9 | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | 2.7 | 3 | 3.3 |
| Head H (m) | 58 | 56 | 55 | 54 | 52 | 50 | 46 | 43 | 38 | 34 | 27 | 21 |
Model 4SG2/8 (0.37 kW), 50 Hz. Source: John Tech 4" pump datasheet (performance table).