. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. Fig. 16. (11) A sectional view of a leakless rod cutoff, showing the comparatively large, straight passage-ways. per minute, depending upon the size of the jet pump and how high the water must be lifted. Piping and Cut-Offs The piping used to carry the spray liquid from the air chamber to some convenient point for attachmen^of the leads of high-p
. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. Fig. 16. (11) A sectional view of a leakless rod cutoff, showing the comparatively large, straight passage-ways. per minute, depending upon the size of the jet pump and how high the water must be lifted. Piping and Cut-Offs The piping used to carry the spray liquid from the air chamber to some convenient point for attachmen^of the leads of high-pressure hose should be at least one-half inch in diameter and make as few turns as possible. The pressure of the spray liquid at the nozzle is great- ly reduced by friction of the solution against the walls of the pipe if the changes of direction are frequent, and if the size of the orifices through which it passes are small. The cut-off, at the point of attachment of the hose lead, per- mits the shutting off of one lead of hose whenever desired, and this takes unnec- essary strain off the hose which is not in use. The three-way cut-offs, ordin- arily furnished with machines, are al- ways being turned in the wrong direction, with the result that some one is fre- quently drenched with spray liquid. Plain cut-offs are superior to the globe valves. See Fig. 14 (9). The latter usually change the direction of flow very abruptly, and soon become leaky, besides requiring a lot of time to shut off the hose lead. Gate valves are apt to become partially clogged with sediment, which prevents their clos- ing properly, but they are superior to the globe valves, because they are of large capacity and do not change the di- rection of the flow of the liquid. The simple, leakless cut-off, shown in Fig. 15, is positive in action, easily operated, does not change the direction of the flow of the liquid, is readily adjusted or repacked, and is of large capacity. A sectional view of the leakless ro
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Keywords: ., bookcentury1900, booksubjectfruitculture, booksubjectgardening
