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Thread: Whisperflo pump differences

  1. Back To Top    #1

    Join Date
    Jul 2009
    Olney, MD

    Whisperflo pump differences

    Does anyone know if a WF-23 has the same pump as a WFE-3 with the difference being the motors? Curious if you upgrade a WF-23 with a B2980, would it then be basically a WFE-3?
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  2. Back To Top    #2
    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: Whisperflo pump differences

    There are a couple of differences. First the WFE series use more efficient motors than the WF series, about 12% more efficient. Second, the WFE-3 is a full rated 3/4 HP pump while the WF-23 is an uprated 3/4 HP pump (1/2 HP full rated equivalent) so they aren't really the same pump. The WFE-3 is really the same pump as the WFE-24 and the WF-23 is the same as the WF-2.

    Also, upsizing the motor doesn't change the pump. The pump head curve is determined by the impeller not by the motor. The motor is simply appropriately sized to the impeller so it doesn't over heat and fail prematurely.
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