The Applied Pinch Control Valve is an air operated piston type valve, designed to use a plunger to crimp/close the operators blast hose to start and
stop the blasting operation. This type of valve/system allows the operator to stop the blasting process without the need to de-pressurize the blast pot. Upon receiving an air signal from the dead man system control valve, the compressed air in the upper chamber of the valve body exhausts.
This allows the piston/plunger assembly to raise, releasing the crimp on the blast hose and starting the blast process. A pair of guide tubes are provided to ensure that the piston/plunger assembly travels smoothly through the vertical plane during its operation. The design of this valve allows for long operational life in the most unforgiving working conditions.