. Chemical weed-control equipment. Weeds; Spraying; Spraying equipment. Nozzles which produce a flat, fan-shaped spray are considered best because they give the most uniform coverage and strongest drive. This is especially impor- tant when spray material has to be forced through heavy weed growth or tall grain. Above: flat-fan nozzle discharge pattern. All nozzles require a minimum of 10 to 25 psi before they will fan out or disperse properly. Increased pressure results in greater discharge of gallons per minute, a wider fan, and finer Nozzles which produce a hollow, cone- shaped sp
. Chemical weed-control equipment. Weeds; Spraying; Spraying equipment. Nozzles which produce a flat, fan-shaped spray are considered best because they give the most uniform coverage and strongest drive. This is especially impor- tant when spray material has to be forced through heavy weed growth or tall grain. Above: flat-fan nozzle discharge pattern. All nozzles require a minimum of 10 to 25 psi before they will fan out or disperse properly. Increased pressure results in greater discharge of gallons per minute, a wider fan, and finer Nozzles which produce a hollow, cone- shaped spray are used by some manufac- turers who believe that this type gives greater uniformity of coverage, does not plug so easily, and is less likely to fog Left: Hollow cone nozzle pattern. At high spray pressures, the "bub- ble" showing at nozzle opening would not occur. than the flat-fan type at very low dis- charge rates of gpm and under. Small-orificed nozzles, either flat-fan or cone type, discharge small droplets, tend to fog or drift except at very low pressures. [25]. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Akesson, Norman B. (Norman Berndt), 1914-; Harvey, W. A. (William Alfred), 1914-1989. Berkeley, Calif. : University of California, College of Agriculture, Agricultural Experiment Station
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Keywords: ., bookcentury1900, bookpubli, booksubjectspraying, booksubjectweeds
