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CO2 Evaporator - Pentair - 1 triangle-overlay


CO2 Evaporator

Pentair's CO2 Evaporator for a continuous evaporation of liquid CO2 by ambient air heating.



The unit consists of two separate heat exchangers, which switches between operation and defrosting, to ensure continuous evaporation.

The heat exchangers are mounted onto a rigid frame with piping, valves, instruments, and a control panel for the automatic operation of the unit.


You obtain continuous evaporation by our set-up with 2 separate heat exchangers:

  • Continuous operation & defrost mode
  • Easy-install and maintenance. Vertically adjustable drip tray & removable inner drip tray. Hinged side panels
  • Low noise fans
  • Two versions CU and SS for aggressive climate conditions


The heat exchangers are made in two versions depending on the environment. Either the CU version with aluminum finned cobber coils mounted in a powder-coated casing or a SS version with stainless steel coils and a galvanized steel casing for more aggressive climate conditions. Both versions come with a galvanized frame.

Equipped with low noise fans specifically designed to maintain uniform low-velocity airflow to ensure that water formed during defrosting is retained within the casing and led to drainage. A timer unit opens the solenoid valves alternately so that one unit is open to CO2 while the other is closed. When the tube bank is closed, the ambient air drawn through the unit defrosts the water ice formed during the “open tube bank“ cycle. The water collected in the aluminum drip tray during the defrost cycle is led to drainage. The evaporator is designed for installation inside a building.


  • All necessary safety and change over valves
  • CO2 Pressure regulation system
  • Electrical panel with motor starters fuses and control system for automatic operation of the unit
  • Frame mounted for inside installation on the ground or on the wall



CO2 Evaporator (englisch)
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CO2 Evaporator | Union Engineering - Produktflyer (englisch)
Technische Dokumente
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