Varisco ST-R Self-priming trash pumps
Self-priming trash pumps, ideal for pumping liquids with solids in suspension. They are used in purification plants and sewage systems an proved a completely safe management and maintenance.
- Rapid self-priming without foot valve. Once filled with water, the pump is automatically primed to a height of 7.5 m
- Total safety operators. Being place outside and above the liquid to be pumped, inspection and maintenance of the pump are made easier, with greatly reduced health and safety hazards for personnel.
- Two vane open impellers handling up to 3" (76 mm) solids.
- Easy maintenance: back pull-out rotating assembly which can be removed without dismantling the pipes or pump casing.
| Electrically-driven pumps | 50 Hz | 60 Hz | |||||||||
| Model | Ports | Solids | Capacity | Head | Speed | Power | Capacity | Head | Speed | Power | |
| mm | in | mm | m³/h | m | rpm | kW | m³/h | m | rpm | kW | |
| ST-R2 | 50 | 2" | 38 | 32 20 10 | 5,5 7 8,5 | 1450 | 1,5 | 40 15 5 | 5 18 21,5 | 3450 | 2,2 |
| ST-R3 | 80 | 3" | 63 | 100 50 20 | 9 14 16 | 1450 | 5,5 | 100 50 20 | 16 20 23 | 1750 | 11 |
| ST-R4 | 100 | 4" | 76 | 160 100 50 | 11 16 19 | 1450 | 11 | 160 100 50 | 20 24 27 | 1750 | 18,5 |
| ST-R6 | 150 | 6" | 76 | 330 200 80 | 14 23 28 | 1450 | 30 | 290 200 70 | 7 13 17,5 | 1150 | 15 |
| ST-R8 | 200 | 8" | 76 | 440 300 100 | 5 12 17 | 950 | 18,5 | 540 300 200 | 6 19 22 | 1150 | 37 |