Combination Air By-Pass/Air Control Valve
Combination air by-pass/air control valve is used with some managed air thermactor systems. Valve combines functions of two normally closed valves in one unit. There are bleed type and non-bleed type valves; both look alike. Bleed type valves will have percentage of bleed molded into side of case. By-Pass portion of valve dumps air to atmosphere, while control valve portion directs air upstream or downstream.