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Kawamoto Pump Mfg. Co., Ltd.

Direct connecting

SDP-RW


Application

  • Direct connection to water main for booster

Feature

  • All stainless: Pumps, unit pipings, Major valve, and back flow preventer are made of Stainless cast steel.
  • Low operation sound: Exceeding conbensional model, we realized low operation sound of 50dB (the lowest in industroy).
  • New function in control panel: Equipped liquid cristal display, Eco-drive, Window for manipulation, Remote monitoring (variant model), Duplexed control panel (variant model).
  • 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. (Dual back flow preventation devi
  • 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.
  • Space-saving: Easy installation in anywhere with small installation area of 0.45m2.
  • Stainless steel pump cover: Hair line finished cover looking high-class.
  • Tray for condensed water: condensed water tray is equipped as standard (with drain hole).
  • Quakeproof design: Secure 1.5G standard design with outdoor self standing.
  • Inspection work switch: Inspection work switch showing the states of "during maintenance work" improve maintenance work efficiency.
  • Temperature detection: In case of temperature rising of water in the pump, it stops pump for protection.

Standard spec

Control method
Control method: Constant estimated terminal pressure water supply with Valuable Frequency Drive
Operation method
Operation method: 2/3 units rotary
Installation location
Installation location: Indoor and outdoor (ambient temperatur: -5~)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: Stainless cast steel (304)
Casing: Stainless cast steel (304)
Shaft: SUS304
Pump cover
Pump cover: SUS304 (Hairline finished)
Motor
Type: Permanent Magnet motor (TEFC indoor)
Power source: Three phase
Poles: 8 poles (4 poles: 3.7kW or less)
Efficiency: IE5 equivalent (3.7kW or less), IE4 equivalent (5.5kW or more)
Back pressure
Back pressure: 0.75MPa or less
Back flow prevention device
Back flow prevention device: Pressure reduction type: Dual back flow preventer (same bore size)
Control panel
Major devices: 3 Inverters (individually for pump), 3 Earth Leakage Breakers (individually for pump), Noise filter, Arrester, DC reactor
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 (pump & inverter is mixed), Earth leakage, Suction pressure drop, During Inspection work, Abnormal 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: 3 units pumps made of Stainless steel

Control panel: ECSK2-R type

Flow sensor

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

Check valve: Valve body: Resin

Sluice valve

Accumulator: PTD3-1 type

Condensed water tray


Optional Accessories

Vibration proof joint
Remote monitoring device
Pipe silencer
Accumulator
Foundation bolt
Heater