The move to improve work environments is creating a large demand for quieter vacuum pumps. Developed to meet this demand, the ULVAC Dual-Stage VD series oil rotary vacuum pumps use low-noise direct-coupled motors. Designed for easy maintenance, the VD series makes routine inspection and service extremely simple. The VD pump series can be used in a wide range of applications -- from research labs (where quiet operation is very important) to production lines.