Over pressure protection for submersible well pump

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by JOS, Sep 3, 2020.

  1. JOS

    JOS New Member

    Sep 3, 2020
    visalia ca
    I installed a low yield well system recently, consisting of a submersible pump that fills a poly tank and a jet pump that draws from the poly tank to charge a pressure tank and supply water. The 1/2 hp submersible pump is controlled by a float switch and is wired through a Franklin control box equipped with Pumptec QD.

    To balance the pumping rate with my well's yield, I am throttling the flow with a globe valve. However, I am concerned about the possibility of the valve working itself closed or of sand blocking the valve which would reduce the flow to near zero gpm and cause the submersible pump to overheat.

    I would like to install a mechanical switch on the pump that would open if the pump overpressures, but would not reclose (and restart the submersible pump) when the pressure drops. I guess I am looking for a pressure switch that is -1 to 100 psi. Is there such a thing? Would this overpressure safety be easier to accomplish with a pressure sensor and relay? Thanks.
  2. fitter30

    fitter30 Active Member

    Feb 2, 2020
    Retired service tech
    Peace valley missouri
  3. Sponsor

    Sponsor Paid Advertisement

Similar Threads: pressure protection
Forum Title Date
Plumbing Forum, Professional & DIY Advice Low Pressure issue- i'm stumped Oct 19, 2020
Plumbing Forum, Professional & DIY Advice Water pressure in condo? Oct 17, 2020
Plumbing Forum, Professional & DIY Advice Setting captive air tank pressure Oct 10, 2020
Plumbing Forum, Professional & DIY Advice How much water comes out of the pressure relief valve Oct 7, 2020
Plumbing Forum, Professional & DIY Advice Low water Pressure in Kitchen sink Oct 4, 2020

Share This Page