The COBRA N singlestage direct-driven rotary-screw dry vacuum pumps incorporate a monoblock, continuously variablepitch screw design, which allows them to operate more efficiently and provides a higher cfm-to-horsepower ratio than traditional dry screw vacuum pumps. They provide vacuum down to 0.0074 torr and pumping speeds up to 225 actual ft3/min. Direct-cooled and closed-loop air-cooling models are available.
Company
Watson-Marlow Bredel