Spraying angle (°)
The irrigation angle provided by the sprinkler during operation, in other words, the size of the horizontal circular sector in which the device operates. For angle-adjustable sprinklers (see below), this item indicates the maximum value or the range of values from minimum to maximum (more often the former, since manufacturers rarely give a specific range).
Most modern models are able to cover
a full circle — they indicate an angle of 360 °. However, pivot irrigation is not always required. In such situations, there are two options: either use a model with adjustable angle, or choose a sprinkler with a narrower irrigation angle. The advantages of the first option are described below, and the second, usually, is cheaper, and the sprinkler itself is more reliable due to its simplicity.
Max. coverage area
The largest area that the sprinkler can cover during operation (or the standard coverage area for models that do not allow changing the size of the captured area).
The larger the area, the more watering area it may require. At the same time, the irrigation system must correspond not only to the area, but also to the shape of the site. Therefore, a model covering a large area is not always the best choice — sometimes (especially in areas of complex shape) it is easier to cover the required space with a few relatively modest sprinklers.
In some cases, knowing the irrigation area, you can determine other characteristics of the device: for example, for a sprinkler with an irrigation angle of 360 °, you can calculate the maximum range without much difficulty, even if it is not indicated in the characteristics.
Pressure control
Availability in a sprincler of the built-in
regulator of pressure.
Pressure adjustment allows, if necessary, to reduce the pressure of water at the outlet of the sprinkler, thus adjusting the range or intensity of watering. However, this function is only indicated if the user can manually adjust the pressure (many sprinklers are able to automatically change the irrigation distance during operation due to pressure changes, but they are not included in this category).
