A high vacuum pump is a device that is used to create and maintain a vacuum within a sealed chamber or system. The Man’s pump, also known as a rotary vane pump, is a common type of high vacuum pump that utilizes a series of rotating vans to create a vacuum. The pump consists of a cylindrical casing that houses the vanes, which are mounted on a rotor. The rotor is driven by an electric motor or another power source, causing the vanes to rotate within the casing. As the vanes rotate, they trap air molecules between the vanes and the casing, creating a partial vacuum. The trapped air molecules are forced towards the outlet of the pump, where they are compressed.