Air atomizing nozzle AIRO™

atomizingfull-conestainless steel

The Industrial AIRO nozzle is an air atomizing nozzle designed for #2, #3, and preheated #5 and #6 fuels. It uses low-pressure air for atomization, effectively handling fuels too viscous for pressure atomizing nozzles and providing finer breakup with sufficient air. As an internal mixing nozzle, air and fuel are piped separately and mixed just before entering the atomizing slots. The air mixes thoroughly with the fuel in the swirl chamber, resulting in a uniform spray with a solid cone pattern. Although air atomizing nozzles are more expensive and have higher power requirements due to the compressor, these disadvantages are offset by their superior ability to handle heavy fuels. Applications • May be used as a fixed discharge nozzle • May be arranged for two-stage firing if desired • May be arranged for complete modulating over desired flow range • Handles light fuels at any flow rate from 2 GPH and up. The proper nozzle must be selected for each range • Handles #5 or #6 oil preheated to approximately 100 SSU. Above 20 GPH, higher viscosities may be handled if sufficient air is available Spray Characteristics • Uniform solid cone • Angle varies with air pressure and flow (higher air pressure produces narrower spray angle). Constant spray angle may be obtained by modulating air pressure with fluid flow. • Separate metering device, such as an orifice, metering pump, or valve is required • Large flow passages greatly reduce clogging • With the internal mixing type of nozzle, the spray angle changes with the fuel-air ratio (pounds of fuel per pound of atomizing air). The spray angle is wider at high fuel-air ratio