Danfoss DBC Air Eliminators Data sheet
Data sheet |
DBC |
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Air Eliminators |
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Features: |
For Heating and Cooling Systems |
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DBC air eliminators allow hydronic heating and |
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cooling systems to operate at their maximum |
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performance by quickly removing dissolved gas |
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particles and microscopic air bubbles from the |
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system. This translates to reduced corrosion, |
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higher system efficiencies, quicker start-ups and |
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decreased maintenance call backs. |
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Performance Principal / |
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As system fluid enters the air separating |
Induced Turbulence: |
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chamber containing a metal lattice matrix, |
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the flow of the fluid becomes turbulent. The |
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turbulent flow causes variations in velocity and |
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pressure resulting in the accumulation of micro- |
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air bubbles on the surface of the lattice. |
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As the bubbles merge, the buoyancy force |
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on the bubbles cause them to float to the |
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upper chamber of the air eliminator where it is |
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regulated and released by a float mechanism. |
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Vent Chamber: |
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The float mechanism maintains a proper |
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air chamber at the top of the unit allowing |
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maximum performance of the vent valve. |
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Installation Examples:
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VDFMA122 © Danfoss 05/09 |
1 |
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Data sheet |
DBC |
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Air Eliminators |
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For Heating and Cooling Systems |
System Connections: |
Size |
Connection |
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3/4” to 2” |
FNPT |
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2-1/2” to 4” |
ANSI Flange |
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Servicing: |
The construction of DBC air eliminator allows |
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maintenance and cleaning without removal of |
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eliminator from the system. Brass models allow |
for complete access to working internals. Steel units allow access to vent assembly and blow down valve for internal flushing.
Service Connections: |
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Feature |
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Size |
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Drain Plug (Models 3/4” - 2”) |
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1/2” |
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Drain Plug (Models 2-1/2” - 4) |
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1” |
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Purge Connection (Models 2-1/2” - 4”) |
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3/8” |
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Removable Vent (All Models) |
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Ordering Information: |
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Code |
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Size |
Connections |
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551045DNF |
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3/4” |
NPT |
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551046DNF |
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1” |
NPT |
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551047DNF |
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1-1/4” |
NPT |
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551048DNF |
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1-1/2” |
NPT |
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551049DNF |
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2” |
NPT |
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551060DNF |
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2-1/2” |
ANSI Flange |
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551080DNF |
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3” |
ANSI Flange |
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551100DNF |
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4” |
ANSI Flange |
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Installation: |
Orientation |
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DBC air eliminators are designed to be installed |
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with the float chamber in the vertical position. |
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Preferred Location of |
Heating |
Separator: |
Upstream of the circulator (Suction Side), down- |
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stream of the boiler. (ie: highest temperature, |
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lowest pressure) |
Cooling
Upstream of the circulator (Suction Side) and chiller (Return Side). (ie: highest temperature, lowest pressure)
Air Separator: |
Lattice Matrix Material |
Stainless Steel - All Models |
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Removable Lattice |
Brass Models Only |
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Rapid Manual Venting |
Ball valve on 2-1/2” to 4” models |
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2 |
VDFMA122 © Danfoss 05/09 |
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