The complete program for all applications in low and medium vacuum ranges. Roots pumps are very robust pumps that are especially suitable for evacuating aggressive gases in the chemical industry, for example, or in heat treatment furnaces (melting, sintering). Their volume flow rates range from 250 to 25,000 m³ per hour. A roots pump typically requires a bcking pump from atmospheric pressure onward. It offers a pressure range of up to 10^-5 mbar.