Description
De-water flooded foundation footings, highway underpasses, and utility manholes fast. The Tsurumi 3 In Electric Submersible Dewatering pump clears massive liquid volumes across harsh construction jobsites. A 2.0-horsepower electric motor turns a high-chromium semi-open impeller. The pump cannot pass solid stones larger than 0.33-inch diameter without risking impeller binding.
Ductile iron forms the pump volute and casing, resisting abrasive wear from sand and mud. The 2.0-horsepower single-phase motor incorporates an internal thermal sensor to prevent burnout during voltage drops. Dual silicon carbide mechanical seals run inside an oil lifter chamber to survive dry running. The slim cylindrical design cools motor windings with pumped water. High-torque shafts resist rotational stress.
Dewatering Submersible Hardware Specs
Excavation crews clear stormwater from jobsite trenches without priming delays. Continuous top discharge design permits pumping down to shallow water levels without overheating.
- Electric 2.0-horsepower motor operates on standard single-phase 115-volt or 230-volt power
- Semi-open high-chromium impeller delivers 185 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 50-foot rubber power cord includes strain relief to prevent electrical shorts
- Standard 3-inch discharge neck connects straight to commercial lay-flat hose lines
Motor Stress Bench Telemetry
Bench testing demonstrates the motor draws 15.0 Amps on 115-volt power under a 25-foot dynamic discharge head. Pump output stabilizes at 142 GPM through 50 feet of 3-inch lay-flat hose. Motor stator temperature reaches 148°F during shallow low-water operation. Acoustic sensors record 60 dBA underwater and 68 dBA above the water line.
Jobsite Operation Mechanical Realities
You lower this pump into manholes using a dedicated steel lifting rope attached to the handle. The slender cylindrical frame fits down narrow 10-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 de-watering pump, 50-foot power cord, 3-inch hose discharge adapter, and technical service manual.
