Circulation Pump, Recirculation Pump with 1-Inch NPT Internal Threaded Flanges, 18.5GPM 3-Speed 115V 60Hz

AB Circulation Pumps are designed for efficient circulation of liquids in heating and air conditioning systems for residential and commercial applications. A circulation pump can be fitted to a hot water tank, manifold, swimming pool heating side, sidearm heat exchanger, and other parts of the heating system to help circulate the water in the house. Our pumps come with three-speed settings, allowing you to adjust the pump speed to meet the needs of your system and thereby reducing energy consumption and saving money. Our pumps, featuring a self-lubricating wet rotor design, operate whisper-quiet and maintenance-free. This product has a 1-year warranty against manufacturer's defects and is UL listed. This listing is for the pump (with gaskets) only; flanges and bolts are not included.

Working Condition
  • Rated at 115V 60Hz single phase AC
  • The pressure of system < 1.0MPa
  • The pressure of water inlet > 0.1 MPa
  • The pumped liquid shouldn't include solid impurities exceeding 0.2mm

    Installation Notes
    -For indoor use only
    -Not for submersible use
    -Do not run pump dry
    -Use copper conductors only
    -Do not install the motor part above or below the pump body

  • Product Information
    Model GPD15-6SF Phase 1 Maximum Pressure 145psi
    Capacitance 10µF Voltage 115 (60 Hz) Port Size 1" NPT
    Input Power
    (High/Med./Low; Watts)
    120 / 78 / 57 Rated Current
    (High/Med./Low; Amps.)
    0.9 / 0.7 / 0.4 Materials Cast Iron
    Head Range
     9.8' - 16.4' - 23' Flow Rate 23 GPM Dimensions,
    7.5" x 7.5" x 6", 8.9lb
    FAQ and Support

    We have worked with heating systems for over 10 years and are happy to help you with any questions or concerns that you may have. You can email us at or call us at 833 328 6888 for help with your heating projects.