ComboValve, 1-1/4″

The ComboValve 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 is

controlled with either pneumatic or electric remote controls. When the deadman control is pressed,

the ComboValve’s unitized piston assembly instantly shifts, opening the air inlet and pinching the

blowdown hose closed, starting the blasting operation. None of the usual wear or failures found in

other blowdown systems can occur with the ComboValve.

The ComboValve eliminates the need for abrasive traps, expensive plungers and diaphragms that

can require frequent, unscheduled and costly downtime. The 3/4” 4-ply blowdown hose can be

replaced in just a few minutes, and any service or repair can be safely performed without removing

the complete valve. A large internal air passage minimizes pressure loss common to other systems.