The Venturi pneumatic circuit is a Aeronautical Pneumatic Circuit using a Venturi instead of a Vacuum Pump.
The air is accelerated through a venturi tube, creating a vacuum at the neck which will suck the air out and create a vacuum in the system.
Gyro valves are used to isolate each instrument from the circuit.
The venturi tube has two drawbacks:
Status:: #wiki/notes/germinating
Plantations:: Aerotechnics - 20230216083955
References:: Le Manuel de Pilotage d'Avion