Aero Space Controls produces a variety of pneumatic valves for shut-off, check, mixing, bleed air, temperature regulating, and pressure regulating applications. Vacuum system regulation and manual rate control valves are also produced. Pneumatic Valve operation can be manual, temperature activated, pressure activated or electromechanical. Aero Space Controls also produces Flow Control Valves (FCV) which utilize bleed air from the engine(s) to provide heat and pressure to the aircraft cabin. The FCVs can be activated by pressure, temperature and pressure, or mechanically operated via an ECS controller.