CONVERGO® nozzle system
Teddington’s patented pressure chamber nozzle system
The air discharge system of an air curtain is crucial to effective air separation across a door or industrial door opening. Teddington engineers developed the patented CONVERGO® pressure chamber nozzle system for this purpose, combining air volume and discharge velocity to produce a precisely directed air stream for effective air separation.
The CONVERGO® pressure chamber nozzle system is based on the Venturi principle: air is accelerated by narrowing the flow cross-section. The airflow is compressed in the pressure chamber, accelerated through the nozzle and distributed evenly across the full discharge width. Aerofoil-shaped profiles divide the air stream into a core jet and a supporting jet before bringing them back together. A concave groove on the outer nozzle profile deflects unwanted outside air, while a soft edge on the inner nozzle profile promotes the desired induction of room air into the air stream.
The precisely directed air stream allows high and wide door openings to be effectively separated with a lower air volume than conventional air curtain systems with air guide vanes. As a result, less air needs to be moved and, in heated systems, less air needs to be heated.
The nozzle can be adjusted in defined increments, allowing the air discharge angle to be set precisely and adapted to the specific door and installation conditions.
Effective air separation with reduced air volume
The CONVERGO® pressure chamber nozzle system combines a lower air volume with a high discharge velocity. The resulting precisely directed air stream provides effective air separation across the doorway. As less air needs to be moved, less air also needs to be heated in heated systems.
Air curtains with CONVERGO® technology require around 30% less heating capacity than comparable conventional air curtains with air guide vanes.
Comparison of air volume and discharge velocity: conventional air curtain on the left, Teddington air curtain with patented CONVERGO® pressure chamber nozzle system on the right.
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- Air discharge system: CONVERGO® pressure chamber nozzle system
- Air discharge range:
- Mounting position:
- Application:
- Shape:
- Heating options:
- Sound insulation:
- Unit length: Custom unit lengths available
- Fan type: AC