Pentair PRESSOMAT PMD20 PVM Automatic Twin Booster Pump Sets for the pressurization and delivery of water supplies via a break tank. Equipped with three phase pumps. Single phase options available. Controlled by two pressure switches with adjustable settings and a control panel for alternating duty, assist and optional low level warning connection. Stainless steel suction manifold complete with 2 ball valves and 2 check valves. Stainless steel discharge manifold complete with 2 brass ball valves, 2 pressure switches and pressure gauge. Base in galvanised steel. All parts require Pressure Accumulator Vessels. Larger twin booster sets are available up 1300 litres per min