The Grundfos CMB / CMBE range offers quiet, compact horizontal multistage booster pumps built on the proven CM/CME platform, with AISI 304 stainless steel hydraulics and noise below 55 dB(A). Fixed-speed CMB units pair the pump with a pressure manager, tank or pressure switch, while variable-speed CMBE models hold constant outlet pressure via an integrated frequency converter and IE5 motor, cutting energy use by up to 40%. Built-in dry-run protection with automatic restart ensures dependable, low-maintenance operation. Applications include domestic and apartment pressure boosting, hotels and guest houses, schools and small offices, rainwater and break-tank transfer, and agricultural irrigation.

Flow Rate :

Up to 14 m³/h (rated flows 1, 3, 5 and 10 m³/h)

Head :

Up to 99 m (CMBE); up to 93 m (CMB)

Motor Power :

0.37 - 2.2 kW (MGE IE5 motors on CMBE)

Supply Voltage :

1 x 200-240 V, 50/60 Hz (CMBE); 1 x 220-240 V, 50 Hz (CMB)

Material :

Stainless steel EN 1.4301 / AISI 304 impellers, chambers and shaft throughout; AISI 304 pump housing on CMBE, cast iron or stainless steel inlet/outlet parts on CMB variants

Max Fluid Temperature :

60 °C (CMBE, CMB PT/PS); 40 °C (CMB with pressure manager)

Max System Pressure :

10 bar

Noise Level :

Below 55 dB(A) on all variants except CMB PS (below 62 dB(A)); lower at reduced speed (CMBE)