Number of nozzles
The number of individual nozzles (nozzles) provided for in the design of the sprinkler. This number corresponds to the number of jets that the device is capable of delivering at the same time.
Theoretically, the more jets, the thinner they are and the more evenly the water is sprayed. However, in fact, this indicator by itself has practically no effect on irrigation efficiency: for example, a single nozzle of a properly selected design may not be inferior in efficiency to a set of several nozzles. Therefore, when choosing, it is worth focus not so much on the number of nozzles, but on other practical characteristics and features of the jet (the latter can be clarified, for example, from video reviews). We only note that
oscillating sprinklers(see "Type"), by definition, are equipped with a set of several nozzles (up to 25 – 28).
Spraying width
The irrigation width provided by the sprinkler, to be more precise, the width of the area covered by the device at a time, without turning the nozzles horizontally.
This parameter is relevant primarily for oscillating models (see "Type") — they evenly capture a rectangular space, and the width is one of the main dimensions for a rectangle. In other types of sprinklers, we are talking about the width of the jet at maximum range (because the jet expands as it moves away from the nozzle); however, for such models, it is more convenient to indicate the size of the captured space by the angle of irrigation (see above), and the width for them is rarely indicated.
Minimum coverage area
The smallest area that a sprinkler can cover in normal operation, in other words, the area captured at a minimum range.
The minimum area is indicated only for models in which the size of the watered area can be adjusted (for example, by changing the angle). The smaller it is (at the same maximum), the wider the adjustment range. It also measures the suitability of a sprinkler for an area that is significantly smaller than the maximum irrigation area (see below). At the same time, when choosing, do not forget that models with the same area may differ in the shape of the space covered, the irrigation angle, etc.
