The Grundfos CM / CME range comprises compact, close-coupled horizontal multistage centrifugal pumps engineered for exceptionally quiet, reliable operation from 50 dB(A). Six hydraulic sizes (CM 1 to CM 25) deliver rated flows of 1-25 m3/h and heads up to approximately 125 m, in cast iron, AISI 304 or AISI 316 construction with IP55 motors from 0.30 to 7.4 kW in 1x230 V and 3x415 V, 50 Hz options. CME models add an integrated frequency converter with PID control for constant-pressure, speed-controlled duty. Applications include pressure boosting, water supply and transfer, water treatment and RO feed, washing and cleaning systems, industrial temperature control, and OEM machinery.

Flow Rate :

Rated flows 1 to 25 m3/h (CM 1 to CM 25); duty flows up to approx. 28 m3/h at 50 Hz

Head :

Up to approx. 125 m, depending on size and number of stages

Power :

0.30 - 7.4 kW IP55 motors; 1x220-240 V / 3x220-240/380-415 V, 50 Hz (CME: integrated frequency converter, approx. 3400 rpm)

Material :

Cast iron EN-GJL-200 with stainless steel hydraulics, or full AISI 304 / AISI 316 stainless steel; AISI 431 shaft

Max Fluid Temperature :

-20 C to +90 C standard; up to +120 C on stainless steel variants with AQQE shaft seal

Max Operating Pressure :

10 bar (cast iron); up to 16 bar (stainless steel variants)

Connections :

Rp (Whitworth) thread standard; NPT, DIN/ANSI/JIS flange, PJE and Tri-Clamp options

Warranty :

2 years