The Combo Valve is a normally closed, self-sealing, fail-safe valve. that combines the functions of the air inlet valve and blowdown valve, eliminating premature failure of the blowdown system. It can be controlled with a pneumatic or an electric remote control. When the “deadman” control is pressed, the valve’s unitized piston assembly instantly shifts, opening the air inlet and pinching the blowdown hose closed, starting the blasting operation.
The Combo valve eliminates the need for abrasive traps, expensive plungers or diaphragms that can require frequent, unscheduled and costly breaks in work. The hose can be replaced in just a few minutes, and any service or repair can be easily performed without removing the whole valve. The large internal air passage minimizes pressure loss common to other systems.