Description
Clear deep foundation footings, highway underpasses, and utility manholes fast. The Tsurumi Electric Submersible Dewatering Pump clears massive liquid volumes across harsh construction jobsites. A 1.0-horsepower electric motor turns an abrasive-resistant semi-vortex impeller. The pump cannot pass solid stones larger than 0.24-inch diameter without risking impeller binding.
Solid aluminum alloy forms the motor casing, protected by a resilient synthetic rubber outer jacket. A semi-vortex urethane rubber impeller resists abrasive scoring from suspended concrete fines. Dual silicon carbide mechanical seals run inside an oil lifter chamber to survive dry running. The slim cylindrical design cools motor windings with pumped discharge water. Solid stainless steel motor shafts resist rotational deflection.
Submersible Dewatering Specs Overview
Excavation crews clear stormwater from jobsite trenches without priming delays. Continuous top discharge design permits pumping down to shallow water levels without overheating.
- Continuous-duty 1.0-horsepower motor operates on standard single-phase 115-volt utility power
- Semi-vortex urethane impeller delivers 80 GPM maximum water discharge volume
- Ductile iron pump volute resists abrasive scoring from high-velocity sand particles
- Internal oil lifter lubricates mechanical seals during shallow low-water conditions
- Silicon carbide mechanical faces resist abrasive wear from suspended silica sand
- Heavy 32-foot rubber power cord includes strain relief to prevent electrical shorts
- Standard 2-inch discharge fitting connects straight to commercial lay-flat hose
Motor Stress Bench Telemetry
Dynamometer bench testing demonstrates the motor draws 9.6 Amps across 115-volt power under a 25-foot dynamic discharge head. Pump output stabilizes at 62 GPM through 50 feet of 2-inch hose. Motor stator temperature reaches 146°F during extended low-water operation. Acoustic sensors record 58 dBA submerged and 65 dBA above the water line.
Jobsite Operation Mechanical Realities
You lower this pump down utility trenches using a steel cable connected to the handle. The slender cylindrical frame fits down narrow 8-inch inspection casings. Do not lift or suspend this pump by the rubber electrical cable. Pulling the power cord pulls internal lead wires from terminals and causes shock hazards.
- Inspect the cast-iron strainer base for compacted silt before lowering into water
- Check oil bath clarity in the mechanical seal chamber once every 6 months
- Wash the exterior pump housing with clean water after pumping acidic runoff
Commercial Warranty Manifest Terms
Tsurumi covers this dewatering pump with a 2-Year limited commercial warranty. The shipping carton contains the submersible dewatering pump, 32-foot power cord, 2-inch hose discharge adapter, and technical service manual.
