Spray Nozzles 22
Spray Nozzles 22 : Spray Characteristics 1: Spray nozzles are designed to perform under various operating conditions. The following characteristics should be considered when selecting a nozzle: Selecting a nozzle based on the pattern and other spray characteristics that are required generally yields good results. Since spray nozzles are designed to perform under many different spraying conditions, more than one nozzle may meet the requirements for a given application. Surfaces may be sprayed with any pattern shape. Results are fairly predictable, depending on the type of spray pattern specified. If the surface is stationary, the preferred nozzle is usually some type of full cone nozzle, since its pattern will cover a larger area than the other styles. Spatial applications, in which the objective is not primarily to spray onto a surface, are more likely to require specialized spray characteristics. Success in these applications is often completely dependent on factors such as drop size and spray velocity. Evaporation, cooling rates for gases and solids, and cleaning efficiency are examples of process characteristics that may depend largely on spray qualities
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