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Kawamoto Pump Mfg. Co., Ltd.




  • General civil engineering and construction work.
  • Drainage for rain water and sump
  • Manhole and pit drainage


  • Adopting new developed small & high torque motor, and urethan rubber for Impeller so that is strength to lubrication, it performs excellent pump characteristics.
  • Aluminum die casted motor frame and adopting rubber materials brings weight and size down.
  • Vortex structure relieves Impeller lock from sand, and easy disassemble and assemble.
  • Built in auto-cut prevents motor from burn.

Standard spec

Application liquid
Fluid quality: Civil work dewartering, Rain water, Sump water (pH6.5~8.0, Viscosity 5mPa・s or less, Earth and sand concentration: less than 2% of volume)
Fluid temperature: 0~40°C
Impeller: DUG2: Resin, DU4: Urethane rubber, DUM2: Urethane rubber, DU2: Cast ductile iron 450
Shaft: SUS403
Casing: DUG2: Cast iron 200, DU4: Rubber, DUM2: Rubber + SUS304, DU2: Cast iron
Strainer: DUG2: Steel plate, DU4: Rubber, DUM2: Rubber, DU2: -
Type: Dry-sealed submersible motor (Built in auto cut)
Power source: Single phase or Three phase
Speed: 50Hz: 3,000 min-1, 60Hz: 3,600 min-1
Max. submersing depth
Discharge method: DUG2: Outer, DU4: Inner, DUM2: Semi-inner, DU2: Semi-inner
Impeller: Vortex type
Shaft sealing: Double mechanical seal
Bearing: Closed ball bearing
Discharge figure
hose coupling

Standard Accessories

Hose coupling: Aluminum die casted

Submersible cable: DUG, DU4: 5m, DUM2, DU2: 10m

Optional Accessories

Rhombic flange
Hose coupling