DUAL CERAMIC SHUT OFF VALVE EXTERNAL TO TANK

摘要

A shut off valve includes a housing having an inlet port, an outlet port, a valve mechanism, a trip mechanism, and a trip circuit electrically connected with the trip mechanism. The valve mechanism includes a valve housing rotationally confining a first disk and a second disk, each disk having at least one aperture which when mutually aligned, allow for fluid communication between the inlet and outlet ports. The trip mechanism includes a spring that urges rotation of an axial shaft fixed coaxially with the second disk. A trip latch is adapted to prevent rotation of the axial shaft and second disk except when withdrawn from the axial shaft by a solenoid connected to the trip circuit that is electrically connected with a toilet tank overflow sensor, a toilet bowl overflow sensor. Upon detection of a fault, the trip circuit mechanism prevents water from flowing into the tank.