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AIR SEPARATOR TANKS

Air Separators remove entrained air from closed loop heating systems

Call us at 908.362.9981 to speak with a sales engineer 

 

Air Separator Tank for Deaerating Condensateair separator efficiency graph
Air separator tanks are used to remove entrained air within liquid systems, applicable to both open and closed loop heating systems.  It is important to remove entrapped air because it reduces the heat system efficiency and precise control of temperature. Systems using air separators often require less chemicals for pH and corrosion control  because dissolved oxygen, carbon dioxide and other non-condensable gasses are removed from the condensate on its way to the feed tank. 

To remove the entrained air, the condensate enters the separation tank tangentially to the vessel body, creating a centrifugal vortex downwards towards the lower tangentially mounted outlet nozzle (the tangential nozzle orientation accomplishes air separation with the minimal tank body size possible). The resulting low velocity centrifugal force propels the heavier "air free" condensate towards the outer edges, releasing the entrained air into the center of the swirling vortex where it can rise upwards through the vessel vent port and float style air vent.  Sediment collects within the lower dished head section and can be periodically blown-down from the system as required.

tangential air separator tankDuring the initial system start-up it might require several passes to remove most of the air from your system and thereafter air attributed to make-up water will automatically be removed.

Our standard air separator tanks are constructed of carbon steel and both designed and manufactured in accordance with the latest edition of ASME Code Section VIII Div. I, including code stamp.  Tanks 3" and larger are offered with 150# ANSI flanged nozzles, although as a custom fabricated vessel we can accommodate whatever type of connection is most compatible with your design.  We have constructed air separation tanks from stainless steel and for working pressures up to 3,000 PSIG.