How to pull the air from the battery - methods for different types of designs

Often in the first days after the start of the functioning of the heating system, it is found that some batteries are not fully working. The reason for this may be enforcement of elements. The solution of this problem in apartment buildings is the task of workers of the HISK. But not always they perform it in good faith. And in private households, troubleshooting completely falls on the owners' shoulders. Consider how to pull the air from the battery yourself.

Before finding out how to pull the air from the heating system, we'll figure it out why it accumulates there. Main reasons:

• repair work - during the parsing / collection of elements in them, air inevitably falls;
• incorrect launch of the heating system in an apartment building - according to the pipe standards, it should be filled with water slowly with simultaneous exhaust air;
• a loose fit of the system parts or poor sealing of joints - the coolant imperceptibly flows and evaporates, and the air is drawn out of the outside;
• reduced pressure in the pipeline, leading to the formation of emptiness and filling them;
• increased oxygen in the coolant - gas bubbles are always present in water, but if there are too many of them, air traffic jams can be formed;
• incorrect connection of the warm floor system - the location of the branches at different heights;
• incorrect work or absence of an air vent on the battery.

In addition, the low quality radiator can lead to the accumulation of air. Aluminum devices are distinguished by affordable price and high thermal conductivity. But the metal actively enters the reaction with water, as a result of which hydrogen gas is released. The problem of rapid corrosion partially solves the film, which is covered from the inside of aluminum, but it disappears over time. A more reliable, durable and expensive variant - bimetallic batteries in which aluminum is combined with steel that cannot be exposed to water.

As a rule, the inhabitants of the last floors in apartment buildings are faced with a problem with the problem of increasing the batteries. When heating oxygen, dissolved in water, climbs up, forming traffic jams. In private houses with an open heating system, air bubbles are freely overlooking the expansion tank at the top point of the system, so the air usually does not accumulate, with the exception of some cases.

Signs of air traffic jams and its harm

To suspect the presence of an air plug in the radiator by the following features:

• the air temperature in the apartment is significantly lower than that of the neighbors;
• the battery is heated unevenly - a part in which there is air remains cold;
• hissing and bulling sounds are heard.

Due to the accumulation of air in the radiator, the operation of the heating system is disturbed. Possible consequences:

• reducing the effect of the battery - the air in the room is not warming up to the required level with a significant energy cost;
• damage to the elements of the pipeline due to the difference in temperatures - some parts remain cold, others - overheat;
• acceleration of corrosion of radiators due to long-term contact of the metal with air;
• the failure of the circulation pump under the influence of the effect of "dry friction".

Tip: Detect aircraft aircraft by tapping the battery with a metal object. In the plug zone, the sound will be higher and ringing than in the water filled with water.

How to release air from the battery?

The answer to the question of how to pull the air from the heating radiator depends on the type of air vent. These devices are necessary to facilitate excess gas removal from the system. They should be mounted in those zones where there is a risk of cork formation, or, more comfortable - on each battery. Possible options:

• crane Maevsky (manual regulator);
• automatic (float) system.

In addition, a watershed tap or a cap can be installed on the battery.

Crane Maevsky

Maevsky's crane is a needle-type shut-off valve. It is mounted in the end of the radiator at the top. If you need to pull the air, it should be unscrewed using a special key that you can buy in a shopping store, or a conventional screwdriver. Some models are equipped with a plastic handle, you do not need tools for opening.

Stages of air removal work:

1. Put a shut -tented valve with a container for collecting a coolant.
2. Smoothly unscrew the crane of Maevsky. At the same time, the air will go out, which will be accompanied by hissing. It is necessary to wait for the emergence of a uniform flowing of water - this is a sign of eliminating traffic jams. Usually it takes 5-7 minutes.
3. Close valve.

In the process of lighting water can begin to go under pressure, splashing in different directions. It is necessary to put a rag on the aircraft that the liquid absorbs into it and smoothly flow into the container. It should be borne in mind that water can be hot enough, it is important to avoid it to get into the skin.

Important: Before the opening of the crane, Maevsky does not need to overlap the entire riser of the heating line or wait for the cooler of the coolant. These actions are not only superfluous, but also reduce the effectiveness of the discharge due to the pressure drop in the heating system.

Automatic air vent

If an automatic air vent is installed, then the question is how to properly pull the air from the battery, does not occur. This is a device that can have a straight or angular design, works offline. It is mounted on the radiator strictly vertically or horizontally.

The automatic air vent is equipped with a float, which hermetically closes the valve under the condition of a sufficient water level in the system. As soon as air accumulates in the battery, the float is lowered, the hole opens, and the gas goes out. That is, the discharge occurs without the participation of a person.

The disadvantage of such an air removal device is susceptibility to water quality. The presence of impurities in the coolant leads to an emergency breakdown of the mechanism. In this regard, the filters should be used. In addition, it is necessary to periodically replace the sealing ring and brush the valve needle. Otherwise, water can begin to leak.

Plug

Not easy task - to release air from the heating battery, if the air is missing, and the plug is installed instead. Before starting work, overlap the coolant access to the radiator.

Modern sectional batteries are equipped with upper plugs. No need to remove the fitting. It is gently slowly tightening it by making several revolutions, and wait until the air comes out. Previously all adjacent surfaces are worth protecting with rags.

Slide the old cast iron radiator is more difficult, since the plug usually fixed the pacles and paint on it. Algorithm of actions:

1. Apply a slight solvent on the site of fitting and battery. Wait 10-20 minutes.
2. Put under the hole bucket. Put rags on the floor.
3. Using the adjustable key, unscrew the plug (incompleteness) to start out the air.
4. Completing the thread with sealing material and spin the plug.

It is important to do everything neatly. If you do not block the water and remove the fitting completely, then hot water is poured under pressure.

It is possible to determine that the air cork is eliminated, by estimating the temperature of the batteries. Sections that were used to be cold should warm.

Crane

In many old batteries, there are ordinary watershed cranes. When the valve is unscrewed from the opening, water begins to flow, and with it the accumulated air comes out. It may be necessary to merge several buckets of the fluid to remove all excess gas.

To facilitate work, it is desirable to use a long flexible slog: one end to attach to the crane, and the second is to omit in the toilet. The valve must be opened as much as possible to provide high water flow rate.

A private house

In the event of an air traffic jam in the heating system of the private house, it is necessary not only to work with each battery separately, but also to remove from the entire system as a whole. The procedure may differ slightly depending on whether the heating system with an open or closed expansion tank is used. But in general, it comes down to the fact that air is produced with the help of one of the methods described above.

Air traffic jams reduce the efficiency of the heating systems and increase the risk of breakdowns. Remove excess air from the radiator can be independently. The easiest way to do is if the manual air vent is installed. In the future, it is important to find out the cause of the problem and eliminate it. In difficult situations, it is better to contact employees of housing and operating offices.

With the first collision with the problem, how to strip air from heating batteries, video will help you avoid mistakes.