Ecolaire’s M Jet Series Steam Jet Air Ejectors are an extremely simple form of a vacuum pump that uses the ejector action of a high velocity of steam to create a vacuum.
The air or gases to be evacuated enter the ejector suction, are entrained by the jet of steam and discharged through the throat.
The velocity of kinetic energy is converted into pressure, thereby compressing the mixture to a lower vacuum (i.e. a higher absolute pressure). Depending on the degree of vacuum desired, one, two or three stages are used to complete the compression to atmospheric pressure.