Single stage rotary vane vacuum pumps are offered in size of 300 m3/h and its specifications include high vacuum speed, capability for permanent and secure work as well as being equipped with gas blast. Single stage rotary vane vacuum pumps (RVVAC S) pumps comprise a wide spectra of research, chemical industry, pharmaceutical, food industries, metallurgy, mechanics, electronics, HVAC, auto industry, aerospace, and different vacuum coating systems, vacuum furnaces and driers. RVVAC S pumps are used as main pump in low vacuum systems as well as backing pump for roots pumps (ROVAC series), diffusion (DIVAC series), turbomolecular and other ultra high vacuum systems.