Booster pumps for constant pressure

A pump that raises water pressure when the mains or a tank cannot supply enough. The Grundfos CMBE has a built-in frequency converter and a diaphragm tank and keeps the pressure constant however many taps are open.

A classic set switches the pump on and off between two pressures, so the pressure at the tap varies. A variable-speed booster pump changes its speed to supply exactly what is used. The pressure stays even, and the pump is quieter and uses less power.

The first number is the rated flow in m³/h and the second is the maximum head in metres. CMBE 1-44 and 3-62 suit houses and flats, 3-93 suits multi-storey buildings, and 5-62 and 10-54 suit commercial and industrial sites.