Dukes, Inc.

Cabin Pressure Control Systems

Dukes, Inc. offers a variety of cabin pressure control systems suitable for kit planes to the latest executive twin jets. These systems, comprised of two outflow valves and a controller, feature:

• Light weight, all metal valve construction.
• Hands-off oriented architecture allowing the systems to remain operational even in the event of electrical failure ensuring the aircraft's safety.
• A variety of controllers ranging from simple analog control to a sophisticated integrated # autoschedule.
• Mounting and pneumatic interface design custom for your application.

The systems are sized to accommodate flow up to 23 pounds per minute at 2 inches water column pressure drop, sufficient for a variety of executive and military aircraft.

Aftermarket applications can be custom designed and installed using an FAA Supplemental Type Certificate (STC) Program for use on legacy aircraft.

Click on the Part Number to see a large photo and/or schematic.

Dukes P/N		Description

5200-10-1		Autoschedule CPCS system which includes a digital electronic controller with LCD display and a primary and secondary outflow valve. For use in business jets or high performance prop planes.

5440-10-1		Analog CPCS system which includes an analog controller with a dial display and a primary and a secondary outflow valve, for use in small jet aircraft or propeller aircraft.

5200-00-1		Autoschedule controller which incorporates digital technology to provide a sophisticated cabin pressure autoschedule to provide the maximum comfort for occupants. It also includes a state-of-the art LCD display.

5201-00-1		Primary Outflow Valve which can be controlled by either the digital autoschedule controller or the analog controller as part of a CPCS system. This valve includes separate, pneumatically actuated Delta P and Maximum altitude limiter controls.

5202-00-1		Secondary Outflow valve – works in conjunction with a Primary outflow valve to control cabin pressure. This valve includes separate, pneumatically actuated Delta P and Maximum altitude limiter controls.

5440-00-1		Analog Controller – will work in conjunction with a primary and secondary outflow valve to provide a CPCS system for smaller, light aircraft.