Ventilation valve. Ventilation equipment: prices, reviews

As a result of numerous studies it became known that if the intensity of ventilation is insufficient or if it is completely absent, the content of substances polluting the air in the apartment exceeds the permissible norms by tens of times. In addition to the person who emits carbon dioxide, the sources of harmful substances are furniture made of particleboard, paint, plastic, wallpaper, wax, floor covering, balloons with aerosols. The gas cooker contributes to the deterioration of the atmosphere inside the room. In stagnant air, mold spores can be found. And also the products of vital activity of microscopic ticks. Contaminated air has a negative impact on human health and is the cause of damage to the structure of the structure. And then the filtration systems that will purify the air once filled the room are powerless. Maintenance of air hygiene of rooms is provided due to their ventilation. That is, regular replacement of contaminated air with fresh, coming from the street.

The essence of the problem

The question connected with ventilation of premises of an apartment building is quite actual. Most modern buildings are equipped with natural ventilation. Mostly fresh air is in the premises thanks to the gaps in the windows. From there, he enters the corridor through the undercuts of the interior doors, and then he is met by a ventilation grille with a non-return valve. From apartments such air enters the channels of natural ventilation, mounted in houses at the construction stage. They are usually made of special concrete blocks. For each apartment vertical, one or two such channels are used.

Reliable screen

In most typical high-rise buildings in the kitchen there is only one ventilation duct. Its geometric dimensions are defined by the standards, and they determine its productivity. To it it is not necessary to connect kitchen hoods. Some of this rule is ignored, because of what it turns out that the residents of the upper floors receive air, which is "expelled" from the apartment with a hood. If a similar phenomenon is observed in you, then you can recommend you to install a special valve. The return vent valve in the normal state is opened due to the fact that in the ventilation duct the air is slightly rarefied. This allows the air to leave the room. When a reverse thrust occurs, the valve overlaps the channel cross-section. Therefore, polluted air can not get into the apartment. Some ventilation equipment is already equipped with built-in check valves.

Fans

The main problem of the natural ventilation system is that its performance depends on random climatic factors: wind direction and speed, indoor and outdoor air temperatures, and others. For example, in winter, when the temperature difference is quite high, the ventilation system works very efficiently, and in the summer this figure drops to zero. In the most common cases, you can solve this problem in a simple way by installing a vent valve with a fan in the bathroom and kitchen. To date, the most widely used devices that operate on a regular house network, and they are controlled by a rope switch on the device itself or the main one, located next to the light switch in the room. For the bathroom there is a special device equipped with a humidity sensor. He joins himself, when he determines the increase in the level of moisture in the air. It also turns off itself when the parameters in the room reach normal values.

Installation locations

The ventilation valve in the toilet can be equipped with a motion sensor, a delay timer and a fan, then it will turn on when a person appears, and then turn off after a short time after leaving. One can cite as an example such a model as the 100/125 MATR (Vents, Ukraine).

A good kitchen option is a fan that turns on after receiving a signal from a remote indoor air quality sensor. As soon as its condition gets worse, the sensor sends an activation signal to the fan. After the indicators are normalized, the device turns off with a certain time delay, which depends on the configured parameters. An example is the Vario wall fan model (Vortice, Italy) with a C Smoke sensor installed on the vent valve.

The subtleties of choice

In the process of choosing a particular model, it should be understood that cheap options are "consumables", that is, after 2-3 months of operation they will need to be changed. Only high-quality devices, in which the rotors of motors are mounted on ball bearings, are able to work out for about 4.5 years. Ventilation equipment will work much more efficiently if the fan motor is powerful enough, but this should not be too high.

Unusual windows

If before the installation of new metal-plastic windows you were quite satisfied with the efficiency of ventilation provided by old wooden structures, then it is worthwhile to install the bolts in the mode of winter airing. In the vestibules of the windows, micro-slits will be formed, which are sufficient to ensure the inflow of the necessary amount of fresh air. You do not need any additional devices or devices. However, with this option of opening windows, street noise will start to enter the room. And also drafts can be formed. If such a problem became urgent for you, it is worthwhile to use a supply air vent, which provides access to fresh air housing without unnecessary noise.

Installation of such devices is possible anywhere in the home. For their operation, no electricity is required, and their throughput is 2-50 cubic meters of air per hour. Flow adjustment is automatic or manual. The location and number of valves are determined as a result of the calculations. The apartment usually requires at least two. The ventilation valve in this case provides the required level of penetration of fresh air.

How it works

The higher the draft values in the ventilation duct and the higher the wind pressure on the facades, the greater the volume of air coming through the vent valve. Sometimes the influx is too strong, because of what it is necessary to limit it. Therefore, it is not recommended to place it at the head of the bed, especially the nursery, since in winter the flow of cold from it is quite strong. Ventilation grille with a non-return valve is also not an effective solution to the problem of fresh air intake. Since in the summer time the temperature difference does not allow the natural movement of air masses. That's why it is recommended to equip such devices with fans.

Stagnation in the ventilation system

There are cases when polluted air does not go into the ducts, and if you bring a candle flame to the hole, it will not even move. There may be a number of reasons for this. For example, the banal clogging of the ventilation duct, re-planning carried out by a neighbor, and other factors. The simplest way to solve such a problem would be to contact the ZhEK, so that the experts of this organization could help determine the reasons for this phenomenon. However, often it is possible not to wait for assistance from the state. It is not necessary to endure the musty air in the room for a long time, it will be most correct to organize the exhaust ventilation of the apartment, which will take the exhausted air directly to the street, and you can simply insert the plugs into the holes provided for according to the plan. For these purposes, you can use a ventilation valve wall, working in a constant mode or only on demand. Such installations suffer from only one factor - the exhaust holes freeze in the street if the cold is too strong. But they function without problems for most of the year.

Tasks and scope of application

Ventilation valve, the price of which can be from 200 rubles depending on the size and functionality, takes on many tasks. When it is used, it is important to solve some issues. To prevent cold air, dust and poplar fluff from entering the room, the system is equipped with a device such as a ventilation grille with a valve. It is often used in systems that have a household purpose. Sometimes it happens that the hood in the bathroom or in the kitchen allows foreign smells to enter the room. It is in this situation that the right solution is to install an exhaust fan. In the kit with it must necessarily be a reverse vent valve. It will not allow air from the mine to enter the room if the device is not started. And with the fan running, there is a forced release of air inside the shaft.

Characteristics

The return vent valve may have a circular or rectangular cross section. The most common option is a variety of "butterfly". A pair of petals is attached to the axis, which divides the cross section of the valve in half. Springs on them are so installed that air can pass only in one direction. Ventilation grille with a non-return valve has a similar design, but here a variety of lobes are used, located in parallel. When the air current changes to reverse, a tight sealing of the valve occurs. When designing ventilation , it is necessary to take into account any factors that can jam the springs of the petals.

Feedback and conclusions

The vent valve is a convenient solution for a home located in a high-rise apartment building. Since it allows you to ensure the proper level of ventilation of the room when the fan is on. And with its idle state, the ingress of air into the ventilation system is prevented. Judging by the reviews, we can say that there are the best quality representatives in the middle price segment, although you can find quite cheap models that meet all the requirements of users.