The primary function of the valve is to increase overall aircraft efficiency by shutting-off pump flow to downstream hydraulic consumers while those systems are not in use. The secondary function is to provide force and travel pedal feedback to the pilot by using a volume compensator that reacts to the output pressure and volume of the pilot's master cylinder. The SOVVC also has a tertiary function, which is to direct flow to the brakes to stop wheel motion during landing gear retract operations.