. Chemical weed-control equipment. Weeds; Spraying; Spraying equipment. GREASE CUP IMPELLER. LS Another kind of rotary pump equipped with flexible rubber impellers, as the diagram shows. These are becom- ing increasingly popular because their cost is low, and they are not damaged by abrasives in the spray liquid. CAUTION: The rubber impellers on these pumps do not stand up well when used in sprays having a high oil content, and care must be taken never to allow this pump to run dry. The design of most types will not permit pressures of over 20 to 50 psi. TANK HYDRAULIC TYPE AGITATOR. Please no
. Chemical weed-control equipment. Weeds; Spraying; Spraying equipment. GREASE CUP IMPELLER. LS Another kind of rotary pump equipped with flexible rubber impellers, as the diagram shows. These are becom- ing increasingly popular because their cost is low, and they are not damaged by abrasives in the spray liquid. CAUTION: The rubber impellers on these pumps do not stand up well when used in sprays having a high oil content, and care must be taken never to allow this pump to run dry. The design of most types will not permit pressures of over 20 to 50 psi. TANK HYDRAULIC TYPE AGITATOR. 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
