Manufactured by Tsurumi - pumps, the LB series submersible water pumps are extremely robust, compact contractor pumps, that has a 2 inch (50mm) outlet and a tough pressed steel strainer base and body.
For the automatic control of water levels, LB480 and LB800 are available with sensor and float switches:
The 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 - 10-10-1178 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 suction cover at 20mm, depending on the sump size or area being drained. Probes can be lengthened by 70mm or 170mm, with , to enable a lower "on" and "off" level.
The float-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.
The float-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.
They all offer excellent durability during periods of continuous use and/or operator abuse.
The Tsurumi - LB-480 models incorporate a dual position outlet port, which allows the user to position the outlet hose horizontally or vertically to suit their changing requirements on site and prevent the hose from kinking.
A combination of a rubber pump chamber, rubber wear plate and a urethane vortex impeller provides excellent wear resistance in site water Uses that contain sand and silt in suspension, thus maintaining dynamic performance and reliability in the long term.
The Tsurumi - LB-480 submersible pumps utilise a 403 Stainless Steel shaft that is fitted with an ultra hard-wearing twin mechanical seal (inboard: silicon carbide-silicon carbide) which runs in an oil chamber that has a patented oil lifter to maintain seal lubrication during operation in any position. This feature, combined with the water and air cooling route to the top outlet, allows the pump to operate for extended periods with little or no water.
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: 225 Ltr/min
- Water type: Dirty Water
- Voltage: 110V
- Maximum head: 11m
- Cable length: 10m
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.
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