Pipeline Centrifugal Pumps & CDL Multistage Pumps60 Hz and Special Voltage Pipeline Pumps and CDL Multistage Pumps
Pipeline and multistage pumps for 60 Hz and 380, 440 or 460 V supplies. Why a 50 Hz pump overloads on 60 Hz and what to send us.

Model: 40-125 hot water pipeline pump
A 40 mm hot water pipeline pump for 6.3 m³/h at 20 m, ordered for water from -20 to 80 °C. What a small heating loop pump needs to cover.
| Flow Rate | 6.3 m³/h |
|---|---|
| Head | 20 m |
| Power | 1.1 kW |
| Inlet / Outlet Diameter | DN40 |
| Material | Cast iron |
Not sure this pump fits your duty? Try the pump selector
One of the most common small duties we see on hot water orders is 6.3 m³/h at 20 m. A recent order asked for exactly that, in a vertical hot water pipeline pump, for water from -20 to 80 °C, with an NPSH requirement of 2.5 m.
The 40-125 frame is rated 6.3 m³/h at 20 m with a 1.1 kW motor, 46% efficiency, and needs 2.3 m NPSH. Its 40 mm ports suit the pipe sizes usual on loops of this size.
The installation height guide shows how hot water changes the allowable suction height.
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