Air valve

regulatingfor controlshut-off

Engine bleed air systems bleed high pressure, high temperature air from the engine's low and high pressure ports. The air flow is processed through temperature and pressure control devices and supplied downstream to the aircraft's main air conditioning system, to the airframe anti-icing system and to the main engine starting system. An engine bleed air system consists of temperature control valves, pressure regulating and shut-off valves, high pressure valves, over-pressure valves, pre-coolers heat exchangers, high pressure ducting, temperature sensors, pressure sensors, overheat / hot air leak detection devices and a control and monitoring electronic unit. Liebherr also supplies high pressure, high temperature engine pneumatic valves and heat exchangers to perform such functions as cowl anti-icing, intermediate pressure check valve, handling bleed off valve, high pressure/low pressure clearance regulating valve.