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Grundfos 1/12 HP 115V 1-Speed Cast Iron Circulator Pump

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Grundfos 1/12 HP 115V 1-Speed Cast Iron Circulator Pump


  • Recirculator pump
  • Material: Cast iron
  • Single-speed, low energy consumption and maintenance-free
  • Designed for use in high flow and medium/high head closed loop heating applications such as hydraulic heating, radiant floor heating, fan coils, and snow melting
  • Incorporates an automatic resetting thermal protection that assures motor safety and longer life
  • Canned rotor type - the pump and motor form an integral unit without shaft seal and with only two gaskets for sealing
  • Bearings are lubricated by the pumped liquid
  • Ceramic shaft and radial bearings
  • Carbon axial bearing
  • Stainless steel rotor can and bearing plate
  • Corrosion resistant impeller made of composite and PES plastic
  • Motor is a 1 phase motor
  • No additional motor protection is required
  • Maximum ambient temperature: 104 °F
  • Maximum operating pressure: 145 PSI
  • Flange standard: USA oval
  • Type of connection: CI flange
  • Pipe connection: 2-bolt flange
  • Pressure stage: 10
  • Liquid temperature range: 356° F - 2048° F
  • Number of poles: 2
  • Insulation class (IEC 85): F
  • Maximum power input: 185 Watts
  • Rated power:1/12 HP
  • Main frequency: 60 Hz
  • Rated voltage: 115V
  • Current: 17 Amps
  • Capacitor size: 8 F / 180 V

Product Details:

  • Flow Rate: 34 Gallons per Minute (GPM)
  • Engine Horsepower: Less than 1/3 Hp


  • Overall: 6.5" H x 4.13" W x 6.38" D
  • Overall Product Weight: 10.78lbs

Special Offer:

24 Issues of Better Homes and Gardens

Included with purchase ($10 value). 

Grundfos 1/12 HP 115V 1-Speed Cast Iron Circulator Pump

Weights & Dimensions

  • Overall: 6.5" H x 4.13" W x 6.38" D
  • Overall Product Weight: 10.78lbs


Product Type: Circulator PumpMaterial: Cast iron
Power Source: ElectricVoltage: 115 Volts (V)
Flow Rate: 34 Gallons per Minute (GPM)Engine Horsepower: Less than 1/3 Hp
Maximum Pressure (PSI): 145 


Assembly Required: NoAdditional Parts Required: No

About the Manufacturer

Grundfos is one of the world’s leading pump manufacturers. It is their mission - the basis of their existence - to successfully develop, produce and sell high-quality pumps and pumping systems world-wide, contributing to a better quality of life and a healthy environment.

Grundfos 1/12 HP 115V 1-Speed Cast Iron Circulator Pump

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