4SR
4" submersible borehole pumps
They are recommended for pumping clean water. Due to their high efficiency and reliability, they are suitable for domestic, civil and industrial applications, for water distribution coupled with autoclaves, for irrigation, for washing systems, for pressure boosting, etc.
| Flow rate | up to 350 l/min (21 m³/h) |
| Head up | up to 576 m |
| Liquid temperature | up to +35 °C |
| Maximus sand content | – 200 g/m3 for 4SR-S – 150 g/m3 for 4SR-N |
| Maximum operating depth below water level | – 200 m with 4PD motors – 300 m with 4PS motors |
| Motor | 2 poles |
| Ingress protection rating | IP 68 |
| Delivery port | Stainless steel AISI 304 |
| Pump sleeve | Stainless steel AISI 304 |
| Impellers | – Derlin® for 4SR-S – Noryl™ for 4SR-N |
| Diffusers | Noryl™ |
| Shaft | Stainless steel AISI 304 |
| Motor bracket | Stainless steel AISI 304 |
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Technical documentation