The PanBlast™ Pinch NPT 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.
If in turn provides faster activation and de-activation at the blast nozzle.
Upon receiving an air signal from the deadman 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.
Note: The PanBlast™ Pinch NPT Control Valve system is not a failsafe blast pot control
system, it relies on a supply of compressed air to the unit to cut off the blasting process, if
this supply of compressed air is compromised in any way premature activation of the
blasting operation can occur.