The ComboValve is a normally closed, self sealing, failsafe 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 unitised 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 minimises pressure loss common to other systems.
FEATURES
- Simple design is easy to disassemble and maintain
- Rugged corrosion resistant construction
- For safety, spring maintains valve in off position until activated by operator
- Uses common ¾” 4-ply blast hose for exhaust
- Extended length exhaust hose can be used to port exhausted air to any desired location
SPECIFICATIONS
STANDARD:
- Auto Air Valve, N/O 3/4”
- Auto Air Valve, N/O 1 1/4”
- Auto Air Valve, N/O 1 1/2”
HIGH FLOW:
- HF Auto Air Valve, N/O 1 1/2”
- HF Auto Air Valve, N/O 2”


