Blast medium pot

摘要

Provided is a blast medium pot for a blast cabinet for delivering blast particulate. The blast medium pot includes a housing portion, a hollow pressure vessel, and a plunger assembly disposed therebetween. The pressure vessel has a blast inlet disposed at an upper end of the interior chamber and a compressed air inlet fluidly connected to a compressed air source for pressurizing the pressure vessel. The plunger assembly has a valve body located within the pressure vessel and is sized and configured such that direct engagement thereof against the blast inlet creates a fluid-tight seal. The plunger assembly is configured such that the valve body is selectively movable between open and closed positions wherein compressed air may be maintained within the pressure vessel when the valve body is in the closed position and blast particulate may pass through the blast inlet when the valve body is in the open position.