Knapsack sprayers: features, varieties and principle of operation

To obtain a high-quality harvest, each gardener uses all available methods of planting care, among which a regular war against pests and diseases arising from their presence is very popular. It is impossible to win such fights by hand; a knapsack sprayer will be of great help.

In order to clearly understand the main features of knapsack sprayers, you should familiarize yourself with the types of devices offered by manufacturers, namely, with pumping and sprayer options.

First, let's analyze pumping models... This is the only type of spray that does not have a chemical fluid reservoir. The treatment composition is drawn in by the pump structure piston inside the device, and after a simple push on the handle, it is pushed out.

In spray models there is a separate fluid reservoir. It is presented in the form of a plastic bottle with a neck. The process of uniform distribution of the chemical composition occurs when you press the design button or the handle with a pump pump, which is neatly hidden in the product lid.

The range of nozzles also differs in the way of transfer.

Professional products are more large in size and carried by means of a wheeled system.

As for the knapsack sprayers directly, it should be noted that their design features are designed specifically for ease of use at home. The rectangular shape of the device is equipped with two sturdy shoulder straps that connect to each other on the stomach. Such a fastening firmly fixes the unit behind the back and prevents even minimal displacement during operation.

The pump chamber that builds up pressure is located at the bottom of the structure, so that the chemical liquid does not spill onto a person in cases of possible depressurization. Even the pump chamber itself will not crack or burst.

To treat the fruit-bearing area, gardeners use a knapsack garden sprayer. This name stuck to this device due to its appearance, very similar to a schoolbag. The entire working mechanism is located behind the shoulders.

It should be noted that this type of sprayer is considered hydraulic and has a very capacious container. for liquids with a maximum capacity of 20 liters... Myself the unit is equipped with a supply hose, pump and pump control system, which is also divided into manual and wire drive.

Manual knapsack sprayer is considered a versatile and highly economical product. In these models, the process of air injection is carried out manually using a specialized handle.

The essence of the work is quite simple.The operator of the garden sprayer puts it on his shoulders and straps the unit. With one hand, he handles the landings using a rod directed from a metal reservoir with a chemical, and with the other, he pumps pressure, directing the handle up and down. Of course, this way of working is tedious, but has its advantages... For example, using a pump unit, the operator will have to repeatedly stop and pump.

Electric or battery packs work directly from electrical charging. The system is pressurized by an electric actuator that reacts to the battery charge. Undoubtedly the electrical system of the sprayer greatly facilitates the process of work for the operator. Only one hand is involved, which directs the flow of the chemical to the fruit plants.

There is a power regulator in the design of the product, thanks to which it is possible to decrease or increase the operation of the pump system. The average operating standard for a full battery charge is 3 hours... Another advantage is the quiet operation of the unit.

Petrol sprayer (or as it is also called "blower") is equipped with a small motor that generates a high-pressure air stream passing through the hose. Simultaneously with this process, a discharge occurs in the branch pipe, drawing in the chemical liquid and pushing it out in the form of thin spray jets.

Maximum spray range is 14 meters.

The list of garden hand sprayers includes fire extinguishers... In shape and appearance, they do not differ from knapsack units. The design also contains a container for liquid, a pump and a spray hose. The fire sprayer is mainly used for working in forest areas.

The modern system of work in garden plots requires tremendous attention from the gardener. A person can do something with his own hands, but most often you have to use technical units. For example, knapsack sprayers are used for pest control.

The essence of the work of each individual model is simple and has a lot of advantages.

• Manual knapsack sprayer very easy to use. A small container for a chemical liquid, in conjunction with the rest of the construction details, can be easily and freely placed behind the back. The operator pumps up pressure with one hand, while the other - sprays over the required area. The only drawback is the rapid fatigue of the hand pumping air, since the handle must hold the pressure constantly.

• Electric sprayer by its design, it can be called the ideal garden pest control unit. There is no need to make constant pumping, it is enough just to increase and decrease the flow power by switching the knob. The only downside is battery charging.

• Petrol sprayers (along with electric models) are very easy to use. Low noise level, a convenient way of transferring and the absence of the need to constantly pump up pressure are the undoubted advantages of the unit. The only drawback of the gasoline unit is the fuel filling. If the gasoline in the tank runs out, and there are no additional supplies left, you will have to go to a gas station.

Despite the design features of each sprayer, the principle of operation is the same for them. First you need to assemble the device. Gardeners after each treatment with chemicals, rinse the container and the sprayer tube... In principle, these are the main parts that need to be connected together for subsequent work. A chemical composition is poured into the container for treatment against pests.

In the manual version, the lever is inflated, and in the electric and gasoline versions, this process occurs automatically. The solution from the main body flows through the hose and enters the boom. Air is injected, from which pressure is created and atomization begins.

Before purchasing any technical units for their own use, each gardener studies the detailed characteristics of the models of interest and gets acquainted with the reviews of their owners.

Based on comments from experienced agronomists and growers, below is a list of the best sprayers available today.

• The fourth place is taken by the manufacturer ECHO with the SHR-17SI model... This device is designed to handle large areas of planting. In a small area, it may seem extremely cumbersome, and therefore inconvenient. The unit runs on gasoline, the design of the model is equipped with a two-stroke engine, the capacity of the tank for the chemical composition is 17 liters. The only drawback is the impossibility of processing plantings in enclosed spaces, since the sprayer emits harmful emissions.

• The third place is rightfully taken by the model 417 from the manufacturer SOLO... This sprayer runs on rechargeable batteries, which is very convenient for working in a greenhouse environment. This model, unlike its counterparts, is distinguished by the duration of continuous work. A full battery charge is sufficient to evenly distribute 180 liters of chemical. This amount is enough to process a large area of ​​fruiting plantings.

• The second place belongs to the Comfort models from the manufacturer Gordena... These units are suitable for use in home gardens. The pump-action backpack has a five-liter capacity for a chemical liquid. The design is equipped with a filling indicator showing the remaining solution.

• The "BEETLE" model has been holding the leading position for quite a long time.... The special attention of gardeners is attracted by the ease of operation, unpretentious care and reasonable price. The robust design has a low weight that does not cause discomfort and fatigue after a long process of work. The sprayer has a special filtration system that prevents solids from entering the working hose. The telescopic arm of the unit is adjusted quite simply and easily adapts to a specific job.

When making a choice in favor of one or another sprayer, it is very important to take into account the area of ​​the cultivated area and the number of plantings.

In addition, it is necessary to check some of the main characteristics of the model in question:

• the material used in the production of the sprayer must be durable, not splitting when interacting with chemicals;
• the kit must contain several additional nozzles that are responsible for the methods of spraying and the degree of spraying of the liquid;
• each individual part of the unit must be of high quality, not rust when exposed to moisture;
• any owner reviews;
• guarantee period.

For information on how to choose a knapsack sprayer, see the next video.