초록 ▼

Disclosed herein is a protection system for a well pump in which a normal pressure switch is provided in series between this switch and the submerged motor and pump with a low pressure switch which has connected in parallel thereto a timing device which can in turn transmit directions to the pump, m

Disclosed herein is a protection system for a well pump in which a normal pressure switch is provided in series between this switch and the submerged motor and pump with a low pressure switch which has connected in parallel thereto a timing device which can in turn transmit directions to the pump, motor, control and starter to assure that a pump is not allowed to continue to run when there is no water in the well thereby causing a burnout. Check valves and a bleeder line are carefully positioned in this series to assure that the reading given by the low pressure switch, the normal pressure switch are real readings and that the pump is not inadvertenantly allowed to run due to incorrect signals derived therefrom.

대표청구항 ▼

A well pump protection system comprising a water outlet, a valve within said outlet, a storage tank having water and air connecting serially to said outlet, a pressure gauge connected to said pressure tank remote from said water outlet, and serially upstream, a normal pressure switch having means fo

A well pump protection system comprising a water outlet, a valve within said outlet, a storage tank having water and air connecting serially to said outlet, a pressure gauge connected to said pressure tank remote from said water outlet, and serially upstream, a normal pressure switch having means for allowing water to pass downstream, a low pressure switch provided with means to stop water flow downstream, a timing device connected in parallel to said low pressure switch to act as a time lag sequencing device, a bleeder line disposed proximate to said low pressure switch valve connecting said conduit to a well, a check valve disposed between the normal pressure switch and the low pressure switch permitting fluid flow solely in a downstream direction, a pressure pop off valve located upstream from said low pressure switch, a check valve located upstream from said pressure pop off valve allowing water to only flow downstream, and a submersible motor pump disposed in the well, and a pump motor control and starter connected in series to said low pressure switch and said timing device to activate said motor and pump.