Stop valve remote control system - has distributor directing power in one of two ways with control switches providing stop-start action

摘要

The flow rate is varied by detecting its value and a drive stopped on coincidence with a desired value. A distributor piece is connected to the power source so as to direct this in one of two ways, and also reacts to flow conditions in the valve so as to shut off the power. Two or more pairs of control switches start and stop alteration in the flow conditions.