Sprayers Filters

Self-propelled and trailed sprayers today is a very complex technique on which you can see the most advanced solutions. Stabilization of the boom during movement, precise retention of the height of the boom, even when driving on a slope and constant outflow rate at a variable speed of movement - these solutions require a high-tech approach. At the same time, one can often see a disregard for the quality of cleaning the working fluid. But this is the wrong approach, because the quality of work of all the main elements of the system that supplies the working fluid depends on it.

The filter is responsible for the safe operation of the entire system

The purity of the working solution means the correct operation of all elements of the working fluid supply system: flow meters, valves, sprays, pumps, pipes, etc. The main task of the filter is the mechanical removal from the working fluid of particles whose size is larger than the minimum opening of the nozzle of the atomizer. The best is considered a four-step scheme, in which the filters are installed:

  • Between the tank with the working fluid and the pump;
  • A filter between the pump and the valve that regulates the pressure;
  • At the entrance to each section of the rod;
  • Individual inlet filters for each spray nozzle.

For the primary cleaning of the working fluid from mechanical impurities, another filter can be installed at the inlet - in the neck of the tank or on the suction hoses. This protects the pump and other system components from foreign objects and large particles.

The thinner the degree of cleaning, the less bandwidth

Structurally, most often the filter consists of a body, a cup holder and a filter element. The latter may differ in the flow area of ​​the cells, which depends on the installation location of the filter. Elements with the smallest cell size are directly before the spray nozzles.

When describing the filter element, two properties are used:

  1. Mesh mesh size - the distance between two adjacent filter wires;
  2. The nominal cell size is the number of full cells per inch.

The rougher the purge, the larger the cells and the higher bandwidth of the filter. Since the filter element is constantly contaminated during operation, there are already self-cleaning filter modifications. The general principle is as follows: a part of the water flowing to the filter element passes by and is discharged through a special drain, thereby washing away and taking pollution away from it.

Filter selection depends on the upcoming flow rate

Selecting filters for the current system should be based on their throughput and the planned rate of outflow. It is possible that in order to make a higher rate, you will have to change a part of the filters, for example, only those that are installed before the nozzles or just before the pump.

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