Air Nozzles and Jets – when compared to commonly used open copper tubes, open pipes, and commercially available air nozzles the compressed air savings can be as high as 80%. With less compressed air, sound levels are greatly reduced. A 10 dBA noise level reduction is typical. All EXAIR Air Nozzles and Jets meet OSHA guidelines for dead end pressure and sound level exposure requirements.
EXAIR Nozzles are designed and manufactured to take advantage of the Coanda (wall attachment of a high velocity fluid) effect which can amplify the airflow up to 25 times. The compressed air exits through the small holes on the nozzle which entrains the surrounding air. The effect from this is a high volume, high velocity blast using less compressed air. EXAIR manufactures many sizes and styles of air nozzles from the smallest, but quite powerful Atto Super Air Nozzles to our largest 1-1/4 NPT Super Air Nozzle. We also offer Flat Super Air Nozzles, and the Back Blow style nozzle for cleaning out tubes, pipes, channels or holes from 1/4″ to 16″ in diameter.
All of our Air Nozzles are engineered to meet or exceed OSHA Standard 1910.24(b) for 30 PSIG dead end pressure, they cannot be dead-ended as there is always a route for the air to escape so the outlet pressure will never reach 30 PSIG. In addition, our products are going to meet the OSHA Standard CFR 29 – 1910.95(a) for allowable noise exposure levels.
EXAIR Air Jets also utilize the Coanda effect to produce air motion in their surroundings. A small amount of compressed air (1) is throttled through an internal ring nozzle above sonic velocity. A vacuum is produced, pulling in large volumes of surrounding, or ‘free’ air, through an around the jet (2). The exit flow is the combination of the two air sources (3).
EXAIR manufactures Air Jets in two types, High Velocity, and Adjustable with materials of construction of brass and Type 303 Stainless Steel. The High Velocity Air Jet uses a changeable shim to set the gap, controlling the force and flow of the air. The Adjustable does not use a shim, and has a micrometer gap indicator and locking ring to allow for varying force and flow performance.