Amarinth M Unit Condensate Recovery Units perform a critical role within the overall condensate recovery system, ensuring that the maximum latent energy is retained by returning the condensate to the boiler. They are typically used in industrial buildings such as factories and hospitals.

M Unit Condensate Recovery Units are compact and incorporate a control panel and a low NPSH pump to minimise space – both footprint and height.

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CRU Sizing Charts

Amarinth M unit Condensate Recovery Units are designed for relatively small loads. Units are sized based on the head and flow required to get the condensate back to the boiler, along with the operating temperature as this affects the NPSH required by the pump - either 98°C or 94°C.

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Drawings & Visualisations

The image below shows a typical general arrangement drawing of an M Unit CRU.

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Compact packaged Condensate Recovery Unit incorporating a vertical galvanised receiver with single close coupled motor pump and control gear pre wired ready for use


Steel receiver with integral control unit and pump

Design methodology

Advanced computer techniques including 3D modelling, FEA & CFD

Design pressure rating

Vented operation

Temperature rating

120°C (standard construction)

Operating temperature

Up to 98°C

Flow rate

Up to 2,000kg/h

Differential head

Up to 35m


Up to 3600 rpm

Control gear

Float operated magnetic level switch linked to control panel


Simplex unit

Design life

20 years (2 years uninterrupted operation)