400V - 5-15 HP
50÷2450 L/min - Head 2÷32 m
Ø 4’’
The Speroni SK 90, SK 100, SK 120, and SK 140 submersible electric pumps are professional cast iron pumps designed for construction site drainage, civil engineering works, and general drainage applications. Their robust structure and high efficiency make them suitable even for the most demanding tasks, where reliability, continuous operation, and durability are required. The top discharge system ensures effective engine cooling, while the double mechanical seal in silicon carbide in an oil bath helps guarantee a long operational life. They are therefore a suitable solution for pumping and disposing of water on construction sites and in professional drainage activities.
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The Speroni SK 90-100-120-140 are submersible cast iron electric pumps developed for construction site drainage and civil engineering. The range is designed to operate submerged and ensure high performance in drainage operations, even in applications characterized by large volumes of water. The professional construction includes a cast iron pump body and motor cover, while the impeller is made of a high-chrome alloy, a material particularly suitable for applications requiring resistance. The stainless steel motor shaft contributes to the overall robustness.
One of the distinctive features of the Speroni SK submersible electric pumps is the double silicon carbide (SiC/SiC) mechanical seal in an oil bath. This solution is designed to offer reliability and durability, protecting the internal components of the pump during operation. The top discharge also plays an important role: it promotes engine cooling during use, helping to maintain adequate operating conditions even during continuous service.
Thanks to their cast iron construction, high flow rates, and professional configuration, the Speroni SK pumps are a suitable solution for draining construction sites, excavations, civil works, and professional applications. The availability of four power ratings allows you to choose the most suitable model based on the quantity of water to be moved and the system characteristics.


| Code | 101295370 | 101295380 | 101295420 | 101295430 |
| Model | SK 90-3.7 | SK 100-5.5 | SK 120-7.5 | SK 140-11 |
| Power Supply | 400 V | 400 V | 400 V | 400 V |
| Rated Power | 5 HP - 3.7 kW | 7.5 HP - 5.5 kW | 10 HP - 7.5 kW | 15 HP - 11 kW |
| Discharge Diameter | 4'' | 4'' | 4'' | 4'' |
| Head | from 4 to 18.5 m | from 2 to 23 m | from 3 to 31 m | from 5 to 32 m |
| Liquid Flow Rate | 50÷1500 L/min | 50÷1750 L/min | 50÷2080 L/min | 50÷2450 L/min |
| Protection Class - Insulation | IP 68 - F | IP 68 - F | IP 68 - F | IP 68 - F |
| Min Suction Level | 150 mm | 150 mm | 190 mm | 190 mm |
| Max Liquid Temp. Domestic Use | 35 °C | 35 °C | 35 °C | 35 °C |
| Max Liquid Temp. Professional Use | 50 °C | 50 °C | 50 °C | 50 °C |
| Max. Immersion Depth Domestic Use | 10 m | 10 m | 10 m | 10 m |
| Max. Immersion Depth | 25 m (with cable) | 25 m (with cable) | 25 m (with cable) | 25 m (with cable) |
| Pump Body Material | Cast Iron | Cast Iron | Cast Iron | Cast Iron |
| Impeller | Chrome Alloy | Chrome Alloy | Chrome Alloy | Chrome Alloy |
| Mechanical Seal | Silicon Carbide in Oil Bath | Silicon Carbide in Oil Bath | Silicon Carbide in Oil Bath | Silicon Carbide in Oil Bath |
| Dimensions | 28.5 x 62.9 x 25.2 cm | 28.5 x 62.9 x 25.2 cm | 33 x 67.6 x 31.4 cm | 37.3 x 69.5 x 35 cm |
| Weight with Packaging | 68 kg | 84 kg | 119 kg | 150 kg |