Tsurumi - HS3.75SL Submersible Pump - Sensor Switch - 230V

The Tsurumi - HS3.75SL Submersible Pump - 10-10-1062 - Sensor Switch - 230V (SKU 10-10-1062) is a high performing single-phase submersible pump designed for efficient water removal in challenging environments. This versatile pump combines power, durability, and advanced features to deliver exceptional dynamic performance across various Uses.

For the automatic control of water levels, theHSseries is available with sensor and float switches: The Sensor switch has two 304 Stainless Steel probes that are encapsulated in moulded rubber and it is designed for portable Uses. The compact design and precise water level control also makes it suitable for fixed installations and narrow or shallow sumps. During use, when both probes touch water, the pump will start and continue to operate for one minute after the water level drops. However, if the water touches both probes again within this time, the pump continues pumping for another minute and will continue like this on demand, so keeping the water level constantly below the level of the probes at all times. The off level can be as low as the level of the water entry of the volute at 50mm, depending on the sump size or area being drained. Probes can be lengthened by 70mm or 170mm, with optional extensions, to enable a lower "on" and "off" level.

Thefloat-switch has a power cable connected to a waterproof case that contains a ball bearing actuated switch and is designed for portable and fixed installations. The cable is clamped to the pump, with a small amount of adjustment to alter the "on" and "off" level.

Thefloat-switch has a switch actuated by a floating cylinder, housed within a tube. Compact, with fixed "on" and "off" levels for precise level control, it is intended for narrow sumps and fixed installations.

High Flow Capacity: The HS3.75SL boasts a maximum flow rate of 140 gallons per minute (530 litres per minute), making it ideal for high-volume drainage tasks.

Powerful Motor: Equipped with a 1 horsepower (0.75 kilowatt) single-phase motor, this pump delivers reliable dynamic performance for demanding jobs.

Automatic Operation: The sensor switch enables automatic water level control, enhancing efficiency and preventing dry-running.

Robust Construction: Built with wear-resistant materials, the pump offers long-term durability in harsh conditions.

Compact and Portable: With dimensions of 315mm x 425mm (diameter x height) and weighing only 22.7 kilogrammes, the HS3.75SL is easy to transport and manoeuvre.

Versatile Uses: Suitable for pumping clean water, groundwater, and sand water with temperatures ranging from 0°C to 40°C.

• Voltage: 230V (single-phase)
• Discharge Size: 3" BSP
• Maximum Total Dynamic Head: 12.2 metres
• Cable Length: 10 metres
• Maximum Solid Handling: 7mm
• Continuous Running Water Level: 89mm

• Built-in shaft-mounted agitator to suspend solids and prevent air lock
• Urethane semi-vortex impeller for maximum durability and pump dynamic performance
• Anti-wicking cable entry to prevent water ingress

The Tsurumi - HS3.75SL Submersible Pump with Sensor Switch is an excellent choice for hire markets, civil engineering projects, and construction sites requiring efficient and reliable water removal solutions.

Real-world product applications

• Removing water from pits, sumps, and collection points
• Supporting drainage and water transfer duties
• Dewatering flooded areas and low-lying spaces
• Transferring water from tanks and containers
• Assisting with general submersible pumping tasks

Key Product Features

• Flow rate: 580 Ltr/min
• Water type: Clean or Discoloured
• Voltage: 230V
• Maximum head: 10.8m

Tsurumi (est. 1924) is a Japanese manufacturer specialising in heavy-duty submersible pumps for drainage, construction dewatering and wastewater. Product ranges include contractor dewatering, slurry and sewage pumps. Common applications include site dewatering, civil engineering, tunnelling, quarrying and public wastewater projects requiring solids handling.