This dry fog nozzle operates with an external mix, which means the atomization of the fluid takes place outside the nozzle. As there is an external mix, (as opposed to an internal mix), the flow rate is not dependent on the air pressure, which results in easier control. It is available for 1/4" and 1/2" pipe sizes and can be specified in a choice of standard materials including nickel-plated brass, 304 or 316 stainless steel. The nozzle can also be constructed from other materials to accommodate demanding conditions.
Typical applications include spray drying, where the fluid pressure is typically lower and the fluid viscosities are typically higher. Other applications for the dry fog nozzle include gas cooling and coating foodstuffs. The versatility of the nozzle is demonstrated by one of its more unique applications, injecting a viscous liquid into a gas stream that contains powder particles in order to coat the powder with the liquid.
Design Features of the dry fog Air Atomizing, Pressure Fed, External Mix, Round Spray Nozzle
External mix: allows spraying of viscous materials
Able to spray high viscosity (100+ cP) fluids where a round spray pattern is required
Liquid flow rate is controlled only by the liquid pressure. Liquid flow rate is not dependent on the air pressure making the nozzle performance easier to control.
Narrow spray angle (10° to 30°)
Precise metering of the liquid flow rate.