Self-priming liquid ring pump, with star geometry impeller, equipped with a double direction of rotation as standard and a high efficiency motor calculated to operate in continuous service. The particular hydraulic geometry allows the pump to work even in the presence of air bubbles in the suction liquid. Bronze pump bodies and brass impellers. BSP threads. Clean liquids only with no solids or abrasives. Examples of use include water, wine, milk, vinegar, low viscosity oily solutions, neutral fluid detergents and diesel. Model BE-25F comes complete in a heavy duty carry frame ideal for hire and site conditions. All models come with brass hose tails expect model BE-20 which has plastic.