Double stage rotary vane vacuum pumps of RVVACD series is rendered in sized of 4 to 65 m3/h and its specifications can be pointed to as low-level noise, high speed vacuum, easy transportation and installation, easy usage, permanent working capability, being equipped with internal oil pump for lubricating the components, gas blast, one-way automatic anti suck-back valve. DIVAC pumps comprise a wide spectra of laboratory, research, chemical industry, pharmaceutical, food industries, metallurgy, mechanics, electronics, HVAC, aerospace, and different vacuum coating systems, vacuum furnaces and driers. RVVAC D pumps are used as main pump in low and medium vacuum systems as well as backing pump for roots pumps (ROVAC series), diffusion (DIVAC series), turbomolecular and other ultra high vacuum systems.