The VTA model dry vane vacuum pump has a connecting thread on the suction side and an exhaust silencer on the pressure side. The aspirated air is cleaned by an inbuilt fine micro filter. The carbon dust caused by the scoring of the blades can be separated by an integral filter if necessary. A fan between the compressor housing and the motor provides intensive air cooling. The compressor housing is located in a sound cover. The machines are driven by standard flanged three-phase motors using a coupling. A vacuum regulating valve is used to set the vacuum to the required values with an upper limit.