The manual sprayer can effectively eliminate the drawbacks of the operator from the external filtration of the pesticide, which is labor-saving, and the distance and range of spraying are also large. The nozzle is the most important part of the manual sprayer. The nozzle is divided into three types: cone mold head, fan type mist nozzle and other nozzles.
Although there are many types of manual sprayers, their spray parts are basically versatile, and they all receive the liquid medicine pumped from the liquid pump, and atomize them and spray them onto the plants. It consists of a nozzle, a hose, a sleeve, a switch and a spray head. The nozzle is usually made of steel or brass. One end of the nozzle is connected to the drain pipe through a sleeve and a hose, and the other end is equipped with a spray head. A filter is installed in the sleeve to filter the sprayed liquid. The shut-off valve (commonly known as the switch) consists of a switch core and a switch housing for controlling the flow of the liquid.
The nozzle is the most important part of the application machine. In the process of application, it has three functions:
The measurement solution is the most; 2 determines the spray shape (such as fan-shaped fog or hollow cone fog); 3 atomizes the liquid into droplets. The nozzles have a decisive influence on the quality of the spray. The nozzle is generally composed of four parts: a filter screen, a nozzle, a nozzle body and a nozzle (spray), and different nozzles have a range of use. China's manual sprayers are equipped with tangential centrifugal vortex core nozzles, which are often referred to as hollow cone mist nozzles. Some new manual sprayers are equipped with fan-shaped mist nozzles to facilitate the use of herbicides.

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