A compact, contactless, low maintenance Drum vacuum pump/blower designed for contaminant-free loading and discharge of liquids from road tankers. Especially suitable for use on liquid food stuffs such as milk and orange juice, but can also be used on solvents, acids, alkalis, hot bitumen, resins and other chemicals. Maximum flow: 235m³/hr (138 cfm) at 0.5 bar g (14.5 psi...