| CPC F16K 17/00 (2013.01) [F16K 31/06 (2013.01)] | 12 Claims |
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1. A sump pump system for a residential building, comprising:
a residential building having an exterior wall that defines an interior space;
a sump disposed within the interior space, the sump having an inlet, the inlet comprising an end of a pipe, the pipe receiving water from an external source outside the exterior wall, the end of the pipe being disposed to discharge water into the sump;
a pump positioned within the sump, the pump having a pump inlet in fluid communication with the sump and an outlet in communication with a fluid destination, the pump being powered by a power supply; and
a valve comprising a valve body, a valve member, a valve restraint, and a water level detector carried by the valve body, the valve body defining a flow passage, the valve body engaging the pipe of the inlet of the sump such that the flow passage is in fluid communication with the inlet of the sump and such that the valve is wholly supported by the pipe, the valve member being movable between an open position that permits fluid to enter the sump via the end of the pipe and a closed position that closes the flow passage and prevents fluid from entering the sump via the end of the pipe, wherein the valve member is biased toward the closed position;
wherein:
the valve restraint has a first state, in which the valve restraint holds the valve member in the open position, and a second state in which the valve restraint releases the valve member, the valve restraint being maintained in the first state by the power supply such that the valve restraint switches to the second state when the power supply is interrupted; and
the water level detector is configured to actuate the valve restraint from the first state to the second state when a water level is detected by the water level detector.
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