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Kawamoto Pump Mfg. Co., Ltd.

Package booster



  • Water supply for skyscraper
  • Condominium
  • Small regional drinking water
  • Other general water supply


  • Adoption of Synchronous motor. Compared to previous products, we succeeded in motor weight reduction to 67% and motor volume miniaturization to 55%, and in package unit, weight reduction to 79%. Motor efficiency and pump performance in the large capacity
  • High pressure pump Newly developed stainless high performance vertical multistage pump package unit available by 250m skyscraper in max. (bore size 65mm series)
  • Easy maintenance Special structure makes it possible to replace motor, mechanical seal, bearing without pump disassemble.
  • Energy saving rotary controls. From 2 up to 6 unit pump rotary control enables fine grain energy saving operation.
  • Reliable back up function. water supply suspension are avoided as much as possible with the backup functions that activate when there is pump failure, inverter failure as well as pressure transmitter failure and control PC Board failure*. In addition to t
  • Packaged design. Package unit including control panel. Steel plate vibration proof beds for individual pump is standard component.
  • Sanitary stainless. Stainless steel is adopted to pump, discharge header and valve.
  • Long life. Longer life is realized to Cooling fan for inverter and capacitor for main control circuit are.
  • High power factor and harmonic suppression. High power factor equipment*4 with standardly integrated DC reactor for each pump, and suppress the generation of harmonics*5. Perfect noise control with surge suppressor and high efficiency noise filter for bot

Standard spec

Control method
Control method: Constant estimated terminal pressure by frequency control
Operation method
Operation method: 2~6 units rotary operation
Installation location
Installation location: Indoor (Ambient temperature: 0 to 40°C, Humidity: 90% or less, Altitude: 1,000m or less)
Application liquid
Application liquid: Clean water 0~40°C (no freezing)
Pump (material)
Pump (material): KVS type stainless vertical multistage pump (Impeller: stainless cast steel (304), Shaft: SUS316(portion contacting liquid), Casing: stainless cast steel (304))
Motor: Synchronous motor (IPM) motor, TEFC indoor
Motor: Poles: 6 (max. frequency: 225Hz)
Motor: Efficiency: Super premium (equivalent to IE4)
Suction condition (special specification in suction lift up use)
Suction condition (special specification in suction lift up use): Inflow: 0 to 5m [suction lift up: -5m in models with 50mm suction bore, -3m in models with 65mm suction bore]
Flange figure
Flange figure: Equivalent to JIS20K in suction port, Equivalent to JIS20K in discharge port
Paint color (Munsell No.)
Paint color (Munsell No.): Control panel: beige (5Y7/1), Accumulator and base: gray (2.5PB5.1/0.8)

Standard Accessories

Control panel: ECSG4-R type

Flow sensor

Pressure transmitter

Check valve: (Stainless)

Accumulator: Two pcs (one pc in R2 type)

Pressure gage

Ball valve: (Stainless)

Discharge header: (Stainless)

Vibration proof bed: (Steel plate for individual pump)

Escaping pipe

Others: Base

Optional Accessories

Foot valve (in case suction lift up use)
Foundation bolt
Electrode holder