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Kawamoto Pump Mfg. Co., Ltd.

Sea water


From left
1st: Manual type (Floor mount)
2nd: Automatic type
3rd: Automatic alternate type


  • Seawater
  • Seawater intake and circulation
  • Drainage of aquaculture farm, fishery processing factory and others.


  • Starting/stopping water levels are adjustable in L and LN types.
  • Uses titanium for the metal part contacting water, and plastic in the pump to achieve corrosion proof, light weight and easy-to-handle features.
  • Glass fiber reinforced plastic is used in plastic parts which require strength, such as the impeller and casing.
  • As well as excellent performance to pass foreign objects because of vortex type, furthermore, high water pumping performance.
  • Motor has built in auto-cut which prevents from burnout.
  • Semi-open impeller prevents foreign objects from clogging. Strainers are quick detachable type for easy maintenance. (0.75kW or less)
  • Double mechanical seal prevents water immersion into motor.

Standard spec

Application liquid
Fluid quality: For seawater and sump
Fluid temperature: 0 to 40°C (no freezing)
Impeller: Resin
Shaft: Titanium (portion contacting liquid)
Casing: Resin
Type: Dry-sealed motor (auto-cut built in)
Power source: Single phase or Three phase
Speed: 50Hz: 3,000 min-1, 60Hz: 3,600 min-1
Max. submersing depth
Max. submersing depth: 5m
Impeller: Vortex type
Shaft sealing: Double mechanical seal (liquid side: SiC x SiC *SiC x carbon in WUZ2, Motor side: Ceramic x Carbon)
Seal oil: Turbine oil (WUZ2), Liquid paraffin (WUZ3)
Bearing: Closed ball bearing
Flange figure
Flange figure: Special flange

Standard Accessories

Submersible cable: 6m (10m in 1.5kW or more) (3 core: single phase, 4 core: three phase)

Companion flange: One set (with packing, bolts and nuts)

hose coupling: One piece (resin hose coupling: 0.75kW or less)

Optional Accessories

Weight (Nylon coating type 0.75kW or less)