Skip Ribbon Commands
Skip to main content
UTC OTIS UTC CLIMATE, CONTROLS & SECURITY PRATT & WHITNEY UTC AEROSPACE SYSTEMS

Cabin Pressurization and Control Systems

The cabin pressurization and control system is responsible for regulating pressure in the aircraft cabin during flight.  The system controls cabin pressure by modulating the airflow discharged from the pressurized cabin through one or more cabin outflow valves. Components include outflow valves, controllers, and positive and negative pressure relief valves.

Advanced technology that enables the system includes dual gate outflow valves, which generates thrust from the air exiting the valve thus reducing fuel burn.  Also, the highly fault tolerant system design minimizes the risk of cabin de-pressurization; maximizing safety.

Key system benefits include an extremely accurate pressure control, which minimizes the rate of change of cabin pressure; maximizing passenger and aircrew comfort during all phases of flight.​