An ejector is a simple piece of equipment and it does not have any moving parts. These ejectors use either gas or fluid as a motive force. A vacuum is like air. If space contains air pressure under the atmospheric pressure, then it is called a vacuum. If an ejector uses compressed air & high pressure then it is called a vacuum ejector. The compressed air will pass on through the convergent nozzle, which will be then changed into the velocity energy. A compact ejector with air-saving regulation uses fewer compressed air as compared to the traditional vacuum ejector. Working Principle of Vacuum Ejector The vacuum ejector follows the venturi principle. Basically, this vacuum ejector is divided into two types respectively ejectors with eco-nozzle technology and single-stage ejectors. In a single-stage vacuum ejector, the compressed air is supplied through the opening of the ejector and then it passes through the nozzle. While happening this process, the air is