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Kawamoto Pump Mfg. Co., Ltd.

Direct connecting

KFED-R


Application

  • Direct connection to water main for booster

Feature

  • By pump section's high efficiency design and IE4 equivalent PM motor, the KFE type realized top class total efficiency in the industry.
  • One more back flow prevention device for Inspection work: back flow prevention device is possible without suspending the water supply due to another back flow prevention device for inspection work as a standard component.
  • 3 units rotary control: dispersion to 3 pump units for reduction of the operation output per units, thus in the range of small water operation, it could realize further energy-saving, moreover it could enhance redundancy.
  • Less impact to water main: Soft start and stop pump minimizes impact to the water main.
  • Clean water supply without red discoloration: Stainless steel, Resin, and Bronze materials are adopted for portion contacting water such like Pump, Valve and Pipes, thus, free from concern about rusting and red discoloration of water.
  • Water level control of Overhead tank: Combination with level relay makes it usable to direct connection boosting for overhead tank & gravity water supply system.
  • Supply terminal for heater with switch: Labor-saving for heater installation with supply terminal for heater as standard terminal.
  • Inspection work switch: Inspection work switch showing the states of "during maintenance work" improve maintenance work efficiency.
  • Direct boosting function: In case power failure and pump stop, city water main pressure pushes water to pump secondary side through bypass.
  • Fully equipped component: As well as Low sound TEFC motor and DC reactor, cumulative operation timer and counter is equipped as standard.

Standard spec

Control method
Control method: Constant estimated terminal pressure water supply with Valuable Frequency Drive
Operation method
Operation method: Alternate operation 2/3 rotary operation
Installation location
Installation location: Indoor (ambient temperature: 0~)40°C, Humidity: 90%RH or less, Altitude: 1000m or less
Liquid
Fluid quality: Clean water
Fluid temperature: [0~40°C (No freezing)
Materials
Impeller: Resin
Casing: Stainless cast steel (304)
Shaft: SUS304
Motor
Type: Permanent Magnet motor (TEFC indoor)
Poles: 4 poles
Power source: Three phase
Efficiency: Super premium efficiency (Equivalent to IE4)
Back pressure
Back pressure: 0.75MPa - Boosting set head MPa
Back flow prevention device
Back flow prevention device: Pressure reduction type (Dual device in 75mm and 40mm)
Paint color (Munsell No.)
Paint color (Munsell No.): Control panel: Beige (5Y7/1), Accumulator: Gray (10Y5.5/0.5), Base: Gray (2.5PB5.1/0.8)
Control panel
Major devices: 3 Inverters (individually for pump), 3 Earth Leakage Breakers (individually for pump), Noise filter, Arrester
Normal indication: Power, Operation (individual), Operation current & frequency selective indicator (individual), Dis. & Suc. head (selective indicator in control panel), Cumulative operation hours, Cumulative operation counts
Abnormal indication: No.1, 2, 3 pump individual fault indicator (pump and inverter are mixed), Earth leakage, Suction pressure drop, During inspection work, Abnormal water level of overhead tank.
External signal (voltage-free: always OPEN contactor): Operation (individual pump), Fault (individual pump), Suction pressure drop, During inspection work, Abnormal water level of overhead tank

Standard Accessories

Pump: Stainless

Control panel: ECSH5 type

Flow sensor

Pressure transmitter: 1 pc for Suc. and 1 pc for Dis.

Check valve: Hummer-less valve made of stainless

Sluice valve: Bronze

Accumulator: PTD3-1 type

Suction pipe

Discharge pipe

Others: Base


Optional Accessories

Vibration proof bed
Connecting pipe for direction change of Suc. & Dis.
Anti-freezing heater
Vibration proof joint
Pipe silencer
Accumulator
Foundation bolt
Monitoring device