Why is ventilation needed in plastic windows? Supply valve for plastic windows: how to choose and install a ventilation valve Ventilation valve for a plastic window

The spread of plastic windows has solved the problem of drafts. But it was soon discovered that they had a serious drawback - excessive tightness. The solution in this case is the use of special ventilation devices.

Peculiarities

A supply valve for plastic windows is a product that completely compensates for the tightness of the glass unit. Opening the windows a little does not allow for the necessary ventilation. Factories produce millions, even tens of millions of valves every year. If they are selected and installed correctly, fresh air is guaranteed even when the doors are tightly locked. Valves have been present on the Russian market since the late 1990s, but their importance is underestimated by many people.

There is an absurd myth that valves were invented solely to generate additional income for manufacturers. In reality, a similar design was invented back in the 19th century. At that time, they were already coming up with solutions for supplying air through supply ducts, with the flow directed as close as possible to the ceiling. This made it possible to avoid drafts. In addition, already at the stage of mass housing construction in the second half of the twentieth century, equipping apartments with systems that provided fresh air continued.

The developers of this technology knew for sure that widely used wooden windows were replete with cracks, and still continued their experiments. Contrary to another myth, it is not always possible to replace valves with the skillful use of “combs” and slot ventilation. These approaches are a good complement to each other, especially since you can get fresh air mass even in situations where you cannot open the window. It will not be possible to open it slightly in winter if there is a bed nearby, or when it is very noisy outside. Additional motives are protection from thieves, safety of children and pets on the upper floors.

Kinds

A wide variety of plastic windows, the specifics of individual buildings and areas, the characteristics of climate conditions and the use of ventilation systems lead to a significant range of valves. To adjust the air flow, a number of models use a manual method. Depending on the designers' intentions, laces can sometimes be used (in the same way as for controlling blinds). This is important because the valve itself is often located quite high. There are versions that are equipped with electric motors.

Typically, the leftmost position of the regulator opens the ventilation duct to 100%. Accordingly, the right position corresponds to its complete closure. Difficulties may be associated with selecting a suitable intermediate regime; choosing it without the help of professionals is very difficult. Automated systems can be quite expensive, but the fees are completely reasonable. Saving thermal energy during the cold period compensates for all investments.

The automatic type of ventilation allows you to track whether there are people in the room, and the ventilation intensity is adjusted accordingly. Such adjustment is made using sensors; depending on the type, they are adjusted to humidity or atmospheric pressure. The system that measures pressure is equipped with a curtain with an overhead suspension. This curtain goes up or down according to the pressure of the air flow, that is, there is no need to use a barometer. Pressure meters are often made using nylon tapes.

The bottom line is that nylon contracts under the influence of moisture, and therefore the air passage gradually increases. Speaking about the division of valves, it should be noted that they belong to one of three groups:

• slotted;
• overhead;
• folded category.

Slit products are able to maintain optimal supply of fresh air. It goes through a channel 17-40 cm wide and 1.2-1.6 cm high. An inlet cover is used to prevent the penetration of harmful insects and dust particles. It can additionally stop rainwater from entering the house. The hole on the back side of the hood (inside the building) is equipped with a control system.

Slot valves can be installed in the upper lobes of the valves or in horizontal dividing profiles. The advantage of such products is increased throughput and ease of fastening. If we talk about the rebated type of exhaust system installed on PVC windows, its important advantages are low cost and simplicity. To allow air to pass through, narrow, small slits made in the vestibule are used. The seam block has improved noise protection characteristics.

In addition, such structures are very easy to install. Insufficient air passage turns out to be a serious weakness. Therefore, folding equipment is not used in large rooms. If they try to put it there, it will only create a lot of problems. According to the developers (and according to consumer estimates), the overhead climate control unit has the highest throughput capacity.

Its disadvantage is quite serious - such equipment cannot be installed on an already used double-glazed window. It is imperative to prepare the site in advance. In addition, overhead units contribute to the penetration of street noise inside. They don't hold heat well. The general conclusion of experts is that such blocks are not suitable for home use.

There is another design solution option - a supply valve in the form of a handle. This option allows you to avoid violating the design concept of the window. It provides a natural mode of air penetration, which is extremely valuable in the off-season and cold season. Combining the valve with an exhaust apparatus allows you to stabilize the microclimate. Valves in the form of a handle belong to the direct-flow format, and therefore the appearance of condensation in the room is excluded.

Since there is no condensation, the window will not fog up even on the coldest winter day. Valves must be equipped with internal air filters. Their purpose is to prevent contamination of premises with dust particles. These filtration units are supposed to be replaced every 6 months. An important option is micro-ventilation, which helps reduce the need to open windows.

Operating principle

Almost all window ventilation products can operate without any energy sources. It is enough to use the difference in air pressure in the house and in the open space. But for such a system to solve its problem effectively, the trim must have a decent level. Its optimal value is from 10 Pa. There is no need to independently calculate all pressure parameters, you need to focus only on 3 main criteria:

• full operation of the ventilation system of the house;
• heating the air outside to a maximum of 5 degrees Celsius;
• the ability to move air from one room to another in the required volume.

The last parameter is ensured by the fact that the gap in the intermediate doors is at least 20 mm. Due to the objective principles of its operation, the supply valve does not cope well with ventilation if the days are hot. Each design is designed for a specific temperature range. Deviation from established norms immediately entails negative consequences. Products with a filter can protect against the harmful effects of polluted air.

Manufacturers: review and reviews

Domestic valves supplied under the brand "Window Filters", are rated very highly by consumers.

Their advantages are:

• excellent noise resistance;
• ability to perform well in the cold;
• dust removal;
• protection from insects;
• reliability during installation.

If we talk about products AirBox, which has already been discussed, the advantages are also obvious - the ability to install it yourself and a reasonable price. Aereco products allow you to adjust the air flow automatically, effortlessly. Regarding designs from "Domventa", they must be placed directly above the battery. Such blocks perfectly contain noise, stop insects, and can be harmoniously combined with the design of the building.

Regarding blocks KIV-125, then they can be either Finnish or Chinese in origin. The structures supplied from Finland are superior to their Asian counterparts with increased thickness and strength. The density of the insulating material also increases. The inner heads are white and dark, respectively. Constructions Vallox are also made on the shores of the Baltic Sea. The company claims that its products fully meet modern requirements. It is characterized by recovery at the level of 75%. These devices are distinguished by their dependence on electrical energy (which is greatly saved). Dust is filtered, and fine particles are also kept out.

The company supplies external type valves with auxiliary heating and humidity detection. During the production process, a leak test is performed. The electronics can be controlled via a smartphone. If necessary, it can be easily supplemented with devices that measure the level of carbon dioxide in the room. The technical description of the products says that with their help it is possible, even in a small space, to provide clean air and remove dirty air mass without disturbing the roof and ceilings.

Not only the function of removing bad odors and preventing mold contamination is supported. The air in the room becomes drier and gets rid of the characteristic mustiness. The occurrence of drafts is completely eliminated. The inlet channels are equipped with protective filters that 100% stop contamination not only by dust, but also by plant pollen. Therefore, we can conclude that the Finnish complex completely solves the problem.

An equally high-quality product is supplied from Germany. Valves are a convincing example of this. Marley. Their developers tried to provide maximum cover from pollen. For this purpose, an insulating coating of a special brand of foam rubber is formed. Additionally, such a layer prevents the penetration of noise and inhibits the spread of condensation. The cold does not pass into the house, and the heat does not randomly escape outside. The outlet block is designed for walls with a thickness of 25-58 cm.

The manufacturer guarantees:

• smooth (stepless) adjustment of air supply;
• reliable thermal insulation of the inner part of the channel;
• combination of elegance and simplicity;
• the ability to compensate for major installation errors by rotating the hood.

How to choose?

Valves for ventilation of plastic windows can be made from:

• wood;
• become;
• plastics.

The cheapest designs cannot regulate the air supply. The only thing they are capable of is reducing the impact of strong winds. It is very important to determine how efficiently the systems operate. The recommended inflow rate per resident is 30 cubic meters. m in 60 minutes. As for the noise absorption level, it should be the same as that of the plastic bags themselves.

Seam and slot designs are optimal for self-assembly. The disadvantage of overlay elements is visual visibility; if you want to mount a hidden block, you need to choose other designs. Aereco versions differ in the method of air flow. The adjustment can be made in an oblique or straight direction. This company has also managed to provide excellent functionality. Its designs can stabilize the humidity in the room thanks to a special function.

In terms of efficiency, domestically produced Air-Box systems differ. In addition, they install well and are not too expensive. Products from Russian companies are gradually entering the market. Among them, Mabitek products are best suited. The most widely used polymer windows have noise protection of 30-35 dB. The valve should have a similar level of protection.

It is important to consider that for winter use you will have to carefully select the design according to:

• basic material;
• air flow characteristics;
• differences between external and room temperatures.

In order for the valve to perform its task well, so that it does not become covered with ice, it is required to be equipped with high-quality thermal protection. Additionally, the use of a “thermal break” is required. This gap is formed from a special kind of plastic placed inside the valve. If it is difficult to give preference to manual or automated adjustment, you should choose valves with mixed settings. Designs that are not at all suitable for adjustment should be immediately rejected, because the need for it is very great.

"Air-Box" from "Mabitek" is distinguished by increased versatility and suitability for installation on bags of any design. If necessary, it is placed in folds, that is, completely invisible from the outside. The design of the “Standard” series involves dividing the valve into two parts. The outdoor unit is located at the bottom, and the indoor unit is at the top. The action is ensured by rarefaction of the air; the system will not be able to operate if the exhaust ventilation ducts are not functioning properly.

The manufacturer supplies valves with improved acoustic properties. This family is called “Comfort”. Similar products can be selected for a specific type of installation. The classic approach involves indispensable milling of the window profile. All “comfortable” products are manually adjusted. Valves with a micro-ventilation option allow you to deliver 5-7 cubic meters into the room in an hour. m of air.

Their advantages are:

• protection from hot summer air;
• ventilation without cooling the room during the winter months;
• exclusion of drafts;
• long-term operation;
• stable air exchange without careful adjustments;
• Suitable for maintaining a fresh atmosphere in the absence of people for a long time.

The weaknesses of systems operating in micro-ventilation mode are the accumulation of dust on the surface of the mechanism and the penetration of noise through inexpensive products. It is easier to install devices outside than inside. In addition, working from the outside allows you not to rely on automation, but to set the mode yourself. It is important to find out whether metal parts are sufficiently protected from the formation of an ice layer. Compared to all these characteristics, price parameters are not significant.

In addition to the already mentioned manufacturers of window supply valves, the German brand Siegenia attracts attention. The quality of its products generally satisfies consumers, but there are only a few models that do not reduce the flow of light. A very wide offer of valves is characteristic of the Rehau concern. Moreover, the differences also concern their configuration, and everything works automatically. Reliable, environmentally friendly plastic is used to create the structures.

Part of the ventilation slats contains many chambers. Depending on the current need for fresh air, they open a certain number of holes. But such a solution, with all its seductive simplicity, brings into the rooms, along with fresh air currents, also all the extraneous noise. You can choose this design only if the windows overlook quiet areas of the area. Or in a situation where noise coming from outside will not have a serious negative impact.

Otherwise, you need to choose designs that are regulated by a stable pressure drop. An example of such a product is “Climamat”, which provides regulation of the amount of incoming air and humidity in the room. The device is suitable for full monitoring of the microclimate, for its deep stabilization. Unlike Siegenia analogues, their size is relatively small and there is no need to violate the properties of the window. The system operates silently and filters the incoming air, guaranteed to eliminate drafts. You can purchase a similar valve for any type of window profile. He will also be able to withstand all possible loads.

Even if well-designed and carefully selected valves from leading manufacturers are installed, you will still need to ventilate the room periodically. As with the purchase of other building materials and components, it is equally undesirable to choose valves only at a very affordable price. But there is no point in trying to buy the most expensive product - almost always such expenses are wasted.

Installation

Installing a supply valve with your own hands or with the help of professional installers is possible only in two ways. In the first case, they try to install it when the double-glazed window is completely replaced. The new package should be smaller in size than the old product, since the border of the frame and the slope will be equipped with a valve. The labor intensity of the work is very high, and costs rise sharply. And at the same time, the flux of solar rays is significantly reduced.

According to the second scheme, installation takes place in the window frame. Total installation time is limited to ½ hour. First you need to select a suitable installation position.

There are three ways:

• on top of the frame;
• on top of a separate sash;
• at the intersection of windows with main walls (as mentioned above, this is allowed strictly simultaneously with the installation of the package).

When the point is determined, the device is applied, the sash is opened and closed. At the same time, make sure that the valve does not press against the slope. Once the positions for fastening have been outlined, you need to take a utility knife and make cuts on the side. The insulation material installed during installation of the package must be replaced with a different insulation material. Next, the film located on the valve bodies must be removed, then the products are attached using self-tapping screws.

If the delivery kit includes auxiliary seals, they must be inserted into the gaps of the fasteners. On the opposite side (relative to the valve), the old seal must be cut out. To replace it, use the one included in the kit. It's not too difficult to do this kind of work. But it is important to take into account the features of each design and the manufacturer’s recommendations.

Often, high-quality, flawless installation is only possible in large-scale production conditions. Attempting to install individual valves yourself or inviting specialists does not help matters much. They most often drill the profile several dozen times, practically rendering it unusable. The holes that appear are covered with a valve, and nothing can be seen from the outside. But the reliability of such a design, service life and performance do not withstand even a shadow of criticism.

Therefore, it is much better to buy something that is mounted without inserting into the profile. In addition, such elements are often cheaper and are secured with a screwdriver. And manufacturers provide clear, detailed instructions that make it possible to almost completely eliminate the occurrence of errors. Let's look at do-it-yourself work using the example of installing affordable valves.

First of all, you should prepare your workspace, freeing it from unnecessary elements. Next, prepare sharply sharpened stationery knives and screwdrivers. Having opened the window, try on the valve on the surface of the frame in the right place. Now you need to cut the sealing rubber with the orientation towards the outer edges of the valve. The part of the elastic band marked with cuts must be removed carefully so as not to break or tear anything. At points where the work plan provides for fastening self-tapping screws, it is necessary to insert embedded-type fastening dowels.

Now it is necessary to integrate a pair of sealing products exactly between the fastening positions. Having done this, change the rubber frame seal in the right place to the one that is included in the ventilation kit. All that remains is to enjoy the result of your work. All necessary manipulations are completed in 15 minutes. If there are any subtleties or nuances, they are always indicated in the accompanying documentation.

But it is necessary to mention a few more points that are also typical for any model passed through walls. The outer parts of the air intakes must be covered with visors. They block water and various precipitation from seeping into the house. Compact telescopic channels are combined with the housings and secured with a special sleeve. Most valves are mounted on the top of the valves.

Methods of regulation

Micro-ventilation of plastic windows is configured as follows. First, open the sash and remove a certain part of the seal. A knife is used for this purpose. After gluing the gasket included in the delivery set, install 3 plugs. The mechanism is adjusted using a special screwdriver, which is needed to adjust the hinges. If the frost is severe, it is strictly forbidden to close the inflow valve completely. To remove dust clogging the external visor, use a vacuum cleaner. The body itself is cleaned with a damp cloth, both procedures are carried out 2 times a year. Do not clean the valve with synthetic products. If renovations are being carried out indoors, the product must be protected from dust contamination.

When choosing an operating mode, you need to focus on an air speed of 15 cm per second. If the valve closes completely in cold weather, this cannot be tolerated. You will have to seal the external gap that allows air to pass through. Minor extraneous noise should not be perceived as something negative. This is an inevitable companion to the normal operation of the device, especially with overhead structures.

When selecting a valve, the performance range must be assessed based on the current pressure. It is not at all guaranteed that air flow through a valve designed for 15 cc. m per hour at 10 Pa will be higher than through a device designed for 12 m3 at 5 Pa. For stable operation of ventilating valves in summer, it is necessary to use an artificial hood supplemented with fans. It is imperative to seal the entrance doors from the street or entrance. The presence of other sources of cold air will devalue the entire system.

Plastic windows help keep the room warm and keep cold and sound out. But at the same time, they significantly reduce the flow of fresh air. This omission of the designers can be corrected by installing a supply valve on the windows. The main task of the device is to restore natural ventilation in a commercial or residential area.

The need to use a supply valve on plastic windows

The benefits of using plastic windows have been appreciated by many residents of apartments and private houses. Comfortable, beautiful and practical windows can reduce heat loss and increase noise insulation of the room. However, along with the advantages, consumers also noted one significant disadvantage - lack of ventilation. This factor worsens the microclimate of the room - humidity rises, the air becomes stale, and people in the house begin to experience a lack of oxygen. As a result, mold appears on the walls and slopes of the room, and the concentration of toxic substances increases.

For normal existence it is necessary to restore sufficient air circulation. Ventilating an apartment by opening window vents nullifies all the advantages of sealed “plastic” and significantly reduces heating efficiency. Inlet valves can solve the problem.

A supply valve is a device installed on the top sash of a window in a horizontal position, which performs an exhaust function. The valve maintains an optimal microclimate in the room and eliminates condensation on the glass unit and frame.

The advisability of using a supply valve on plastic windows is due to a number of advantages:

• the light opening of the window remains unchanged;
• there are no drafts in the apartment, as with normal ventilation;
• the flow of fresh air is at a sufficient level;
• there is no heat loss during valve operation, and the sound insulation of the room remains at the same level;
• ability to regulate valve operation;
• ease of installation and operation.

Design and principle of operation of the supply valve

Proper arrangement of window ventilation is possible only if you have a complete understanding of the mechanism of operation of the supply valve.

When installing the valve, part of the rubber seal on the window frame and sash is removed. A thinner special seal is installed in this place. Together with the new seal, a supply valve is also installed on the window sash - the main element of passive ventilation.

Air from the street is sucked into the room, and warm air is pushed out through the exhaust ducts. Air circulation occurs due to pressure differences. Natural air exchange works if the outside air temperature is not higher than +5°C. In hot weather, ventilation operates using forced exhaust.

The window ventilation valve consists of the following components:

1. The outer part is the “air intake”, installed on the outside of the frame. A prerequisite is the presence of a visor over the air intake, which prevents rain, snow, etc. from entering the valve.
2. Telescopic channel - passes through the frame. The element is milled into the plastic window frame and fixed with a sleeve.
3. An internal part installed from inside the room. The most complex unit, which is equipped with an exhaust nozzle, a simple filter and a mechanism for adjusting the throughput.

Basic conditions for the operation of the supply valve:

• proper exhaust ventilation in the apartment;
• air temperature outside the window from +5°С;
• free air exchange between rooms in the apartment - gaps under interior doors of at least 2 cm;
• sealed entrance door.

Advice. You can check the operation of the apartment's exhaust ventilation yourself. Close the door to the room tightly and open the window in the room as far away from the ventilation duct as possible. Attach a sheet of paper to the grill. If it does not fall and is held by the air flow, then everything is fine with the hood

Types of supply valves for windows

There are many different models and variations of window supply valves. They differ from each other according to different criteria.

According to the material of manufacture:

• plastic;
• wooden;
• metal.

By control method:

• automatic;
• manual.

When operated manually, the valve is equipped with a special rope. The automatic valve is more convenient to use. The device independently determines the need to open/close the ventilation hole. The adjustment indicators are set in accordance with the humidity level and pressure differences in the room.

Important! Operating the inlet valve manually is a bit risky. The desired level is selected through trial and error. In addition, there is a risk of freezing if incorrectly adjusted in winter.

According to the method of air entering the house:

1. Rebated inlet valves. One of the most economical options for PVC windows. Cold air is supplied to the room through small cutouts in the vestibule. To install such a valve, the windows do not need to be dismantled. Seam valves have low throughput, sound insulation is at a sufficient level.
2. Slotted inlet valves. Air enters through a gap whose height is about 16 mm. On the outside of the window, the valve is covered with an inlet block (protection from precipitation and small insects). The inside of the device is closed by a control block. Installation of the slot valve is carried out in a horizontal impost or upper bar of the sash. The advantages of such a valve: high throughput and the ability to install without dismantling the window.
3. Overhead valves allow air to pass best. However, the size of the window opening and frame must be “adjusted” to the valve. Installation of an overhead valve cannot be performed on an installed double-glazed window. Such valves are usually used in production and warehouse areas.

An interesting option is a valve-handle, which is installed instead of an ordinary window handle. Such a device has a number of advantages:

• the appearance of the window does not change;
• the ventilation valve can be located in the place where condensation most often appears;
• effective removal of excess moisture;
• the valve does not freeze in winter (the device has a direct-flow design);
• The handle valve has a built-in filter that prevents dust from entering the room.

Selecting a supply valve: review of manufacturers

Choosing a supply valve from a wide range of models is quite a difficult task. Let's look at the general characteristics of the products of the most popular manufacturers of fresh air ventilation. After all, conscientious companies in the vast majority of cases produce a high-quality product.

The French company Homearea produces supply valves Aereco. The principle of operation of supply units is based on changing the flow area depending on the level of humidity in the room. Air circulation is carried out under the condition of mechanical or natural exhaust operation.

The most common manufacturer models:

1. Aereco valves of the EMM series are moisture-sensitive, hygro-adjustable. The valve has two mounting methods, which characterize the air supply options - with an inclined or vertical jet direction. It can operate in two modes: “minimal ventilation” and “automatic”. Air consumption up to 35 cubic meters/hour at 10 Pa.
2. Aereco valves of the EHA series are equipped with a hygroscopic sensor-drive, which ensures a healthy microclimate in the room. The set includes acoustic accessories that perform noise-absorbing functions. Air consumption - up to 50 cubic meters/hour at 10 Pa.
3. Aereco valves of the EHA2 series are available in a stylish slim body. The device guarantees sound insulation of the house up to 42 dB. The inclined air flow is directed to the ceiling area. This ensures progressive heating of the street air. The device has three operating modes: minimum, automatic and maximum air flow.

Inlet valve for window Air Box Available in three trim levels: Standart, Comfort without milling and Comfort-S.

The Comfort model is installed in two ways - with/without milling. Milling - drilling or sawing at the top of the ventilation duct sash.

Important! Milling doubles the performance of the supply valve. But usually a standard installation - without milling - allows you to solve the ventilation problem

The Comfort-S damper is designed for installation on fixed windows. Installation of such a valve is quite labor-intensive, as it requires drilling a reinforced steel profile. Typically, the Comfort-S valve is installed at the factory.

Passive ventilation supply valve - installation Regel-air. Ventilation of the room occurs automatically. Depending on the temperature in the room and outside, the device independently regulates the degree of ventilation.

Supply valve for plastic windows: photo

The Regel-air climate valve has the following advantages:

• affordable price;
• hidden installation - when the flap is closed, the valve is not visible;
• the incoming air circulates inside the frame - the air temperature rises;
• high maintainability;
• The sound insulation of the room does not deteriorate.

How to install a supply valve on a window: step-by-step installation

The ventilation valve can be installed on the window in two ways: with or without perforation. Let's consider both options.

Installation sequence of a climate valve with perforation:

1. Preparation of tools:
   • electric drill;
   • jigsaw;
   • file;
   • drills 5-10 mm;
   • construction knife;
   • template for marking valve contours;
   • sealant.
2. Using a template, outline the location of the supply valve. The marker must be attached to the top sash. For this work, it is better to remove the window sash, since the markings are done on the outside and inside of the part.
3. According to the markings, drill several through holes with a 5 mm drill. This row will serve as the base for larger perforations.
4. Drill the prepared holes with a 10 mm drill. For convenient location of the valve, holes are drilled from the inside of the window sash.
5. Expansion of the supply valve. Between the pair of outer holes, use a jigsaw to cut out the remaining material. As a result of the work done, a through gap should be obtained. Sand the edges of the hole with a file.
6. Install the valve mounting strip on the flap surface and secure with self-tapping screws. The part must first be treated with sealant.
7. Mill a groove in the frame overlay. Mark the position of the supply valve according to the template, and then cut out the groove using a jigsaw and file.
8. Install the outer part of the climate valve with a visor on the outer surface of the frame. The part is fixed with self-tapping screws and sealed with sealant.
9. Assemble the sash and install it in place - on the hinges of the frame.
10. Check the position of the holes in the sash and frame overlap.
11. Secure the inside of the valve to the mounting plate. Use clips and latches as fastening elements.
12. Adjust valve operation.

Let's look at how to install a supply valve on a plastic window without resorting to perforation:

1. For installation work prepare:
   • a regular cross-head screwdriver;
   • stationery knife;
   • marker and ruler.
2. Open the window sash and remove part of the seal that seals the gap between the frame and the sash. The old gasket is cut off with a knife from the frame overlap. On the free space, stick a special gasket, which comes complete with the supply valve.
3. Direct valve installation:
   • install three plugs with the “skirt” down in the grooves from the seal;
   • fix the valve on the flap of the sash - the device is attached from above in the direction of the brackets to the window;
   • secure the valve with self-tapping screws passed through the brackets;
   • Install a seal in the groove between the brackets.

In this case, the gap between the valve and the seal on the frame acts as a ventilation duct.

Installing a supply valve on plastic windows: video

Adjustment and operation of the supply window valve

The supply valve can be controlled manually or automatically. Automatic is more convenient and is usually supplemented with a hygroregulation sensor. When humidity decreases, air flow decreases, and vice versa - air circulation increases when humidity in the room increases.

With manual control, you can make mistakes, which sometimes lead to overcooling of the room and freezing of the climate valve.

Important! In severe frosts, the supply valve cannot be completely closed

Maintenance of the ventilation valve is limited to cleaning every 6 months. Dust from the external visor can be removed with a vacuum cleaner, and the body can be wiped with a damp cloth.

Do not use chemicals for cleaning. In addition, you should refrain from cleaning the device under running water. When carrying out repair work in a room, the valve must be closed - this will protect it from dirt and dust.

A supply valve for PVC windows is a practical and necessary purchase that improves the microclimate in the house. You can install the supply valve on plastic windows yourself. The installation method depends on the valve model and its configuration.

The purpose of the supply valve is to supply fresh outside air into the room. Most modern apartments are completely deprived of the supply air for which the ventilation exhaust ducts in the kitchen, bathroom or toilet are designed. For high-quality operation of the hood, it is necessary that the internal pressure prevails over the external one, otherwise it is possible. The influx was made through the leaks of window and door blocks, but modern structures have a high degree of tightness and do not let air in, making natural ventilation impossible.

Supply valves provide access to outside air indoors, normalize work and create high-quality air exchange.

How does it work?

The operation of the supply valve is to supply outside air through a ventilation duct specially made in the outer wall or sash of a plastic window. The flow occurs naturally due to the pressure difference between inside and outside.

The volume of the supply flow is regulated by a damper, which increases or decreases the clearance of the ventilation duct. Adjustment is made manually using the handle on the inner (wall) part of the valve.

Types and features

Main types of supply valves:

• wall

Expert opinion

Fedorov Maxim Olegovich

The main feature of supply valves is no need to open windows. This plays an important role for people with various respiratory diseases or allergies. The possibility of constant ventilation in the absence of irritating or harmful air components is important for such people; it helps ensure the high-quality composition of indoor air and comfort for residents.

Expensive models with complex functionality are able to provide the highest quality fresh air flow with predetermined flow parameters. There are models with programmable operating modes. At the same time, almost any type of device can operate like a regular wall valve, without connecting to the power supply.

Wall ventilation valve

Wall valves allow you to obtain the maximum effect of room ventilation. They are installed on the surface of an external wall in a convenient location, often mounted above central heating radiators so that the supply air is heated and does not reduce the temperature inside the rooms. The valve structure consists of three main elements:

• outer decorative cap or ventilation grille

• air duct installed in a through hole in an external wall

• the main block of the supply valve in which the filter is installed, sometimes a fan and other equipment

Wall valves operating on the principle of natural flow, suitable only for relatively warm regions of the country. Cold air in frosty weather will create the preconditions for the formation of condensation, icing of the case and the wall around the device. In addition, cold air can chill the room, which will require increased heating costs.

The typical supply volume of one valve is about 30 m 3 /h, which corresponds to the hourly rate for one person. This must be kept in mind when purchasing a device for an apartment. More advanced and expensive models are capable of delivering a much larger flow volume and have a lot of additional functions - heating, multi-stage filtration, different speed modes.

For plastic windows

Supply valves for plastic windows are devices installed on the top crossbar of the sash. Air is supplied through a hole in the frame. A decorative cap with a grille is installed outside to prevent the penetration of small debris, poplar fluff or insects. A housing with a dust filter is installed on the inside.

Fresh air is supplied in a bottom-up direction, which eliminates the possibility of drafts and allows you to slightly warm up the cold external air from the heat of the heated internal air cushion.

The disadvantage of such valves is considered formation of a cold bridge at the point where supply air is released into the room. It is served unheated and greatly cools the body, which promotes condensation formation and hull icing.

Window ventilation valves

Window valves, in addition to those already discussed, have one more implementation option. The rubber seal on the outer part of the window sash is cut off. The valve is installed on the top of the sash, attached with three screws to the plastic quarter. Air is supplied through the gap formed by the absence of a rubber seal.

The device is very simple, but does not require drilling or milling of plastic flaps, and replacing the seal, if necessary, is not difficult. The device allows for ventilation while simultaneously filtering the incoming air flow, although in terms of the quality of preparation, such a valve cannot compete with more advanced models of wall installations.

Domvent

Domvent wall valves are designed for installation in a through hole in an external wall. The valve design is designed to installation above heating radiators. Air supply occurs in the longitudinal direction (parallel to the plane of the wall), which allows the flow to be heated by the heat of the battery. This installation completely eliminates the possibility of walls getting wet, icing, or supplying too cold air. The only exceptions may be regions with very frosty winters (-40°C or so). An additional function of the Domvent valve is sound insulation, which reduces the level of external sounds to almost zero.

The valve design consists of an external grille with a mosquito net, an air duct and a main unit located indoors above the heating radiator. High-quality air filtration ensures the absence of allergens, fine dust, wool particles and other harmful or unwanted elements.

KPV 125

A complete analogue of this model is the KIV-125 valve. A supply valve of a conventional design without additional elements, designed for natural ventilation of premises. Made from thermal insulating materials, which reduces the risk of icing in winter. This significantly distinguishes KPV 125 from window valves that are prone to icing or condensation.

To control the damper there is a special knob, the rotation of which achieves opening or closing the lumen of the ventilation duct. If the valve is too high, adjustment is made using a special cord attached to the handle.

The design of the valve is practically no different from the basic model - an external ventilation grille, an insulated air duct, a main block with a filter and a control handle. The appearance of the device is quite attractive and neat. The valve has a compact size and does not stand out on the wall surface, ensuring high-quality performance of its tasks.

Which valve to choose - rating

The choice of a wall valve is influenced by various factors:

• necessity and requirements of the premises

• climatic conditions of the region

• room sizes, number of people

• preferences and wishes of residents

• financial opportunities

Among the many design options, the highest quality and most advanced installations are usually considered Breathers of the Tion family. They are leaders in terms of price-quality ratio; user reviews unanimously give them the palm in all positions.

For normal ventilation of rooms without the need for additional functionality, you can use ordinary window or wall devices that do not require a power supply and are easy to install and maintain.

It is necessary to take into account that the cost of supply ventilation units starts from 16,000 rubles, which significantly limits their use. The final choice is usually determined by a combination of opportunity and necessity.

Installation: installation rules

Installation of window valves consists of drilling (milling) a through hole in the upper horizontal partition of the window sash. Alternatively, you may only need to remove a section of the rubber seal, which significantly reduces interference with the window structure. The valve body is installed on the frame and secured with screws, after which the device is ready for use.

Expert opinion

Heating and ventilation engineer RSV

Fedorov Maxim Olegovich

Installing wall valves is much more difficult. The main stage of installation is drilling the outer wall for a plastic air duct. The hole diameter is about 12 cm, which requires the use of a special tool. Typically, a diamond drill is used, installed in an electric drill on a special feed rail. It ensures the specified position of the tool and feeds. The channel should have a slight outward slope of 3-5° to drain condensate or rainwater. The work is complex and it is not recommended to do it yourself.

After making the hole, the insulated material is also installed. At this stage, it is important to ensure that the tube is thermally insulated to prevent cold from entering the apartment. Then the indoor unit is hung and firmly attached to the wall. After this, all that remains is to connect the device to the power supply and configure the required operating mode.

Metal-plastic structures ensure high tightness of housing; they do not allow extraneous sounds and cold to pass through in winter. With all its advantages, it is worth noting the main disadvantage - a significant reduction in the flow of fresh air. By installing a supply ventilation valve for plastic windows, you can solve this problem.

We are talking about a product with small holes located in the upper part of the sash. With their help, air exchange in the room is normalized. Small structures with ventilation prevent the penetration of street noise, providing the interior space with long-awaited silence, peace and tranquility. The supply ventilation valve is suitable not only for plastic, but also wooden and aluminum windows.

In most openings, the closing density is easy to adjust. For warmer seasons, it is better to position the sashes in such a way that there is a small free space between the frame and the glass unit, and oxygen can freely penetrate into the room.

With certain practical skills and following the instructions, every owner can organize an effective one in a house or apartment. But the best part is that you can install window supply valves yourself without the help of specialists.

Efficiency of the ventilation (supply) valve

Many people have a natural question: how effective are these small structures for air exchange? Before purchasing supply valves, experts advise checking their effectiveness by carefully studying the technical specifications, consulting with the seller, and it would be a good idea to read the comments of those who have already purchased them.

It’s quite easy to check the efficiency, and it’s not at all necessary to purchase ventilation solutions. All that is required is to remove the seal fixed to the window sash. It should not be removed or cut off completely; it is enough for it to just hang in a free position for some time (optimally 2-3 days). After they expire, pay attention to a number of criteria and parameters:

• are there any drafts in the room;
• whether the overall noise level in the room has increased;
• the appearance of condensation “fogging” on the glass;
• change in temperature in the room.

Having completed the experiment, the window seal returns to its original place.

Installing a supply valve on a plastic window will certainly lead to a decrease in the temperature in the room. This is due to the fact that cold air enters the room from the street. If we are talking about an efficiently functioning heating system, you can notice a difference of 3-4 degrees.

If there is no effect, it is advisable to abandon this product in favor of a supply valve installed in the wall.

Supply ventilation valve: operating principle

For competent and high-quality equipment of supply valves for metal-plastic or wooden windows, you should carefully study the mechanism of their operation. This is one of the most critical stages, since subsequently it will be necessary to make a hole in the frame about 30 cm long and at least 1 cm wide. At the final stage, it will be covered by the housing of the ventilation device.

It will not be possible to dismantle the supply structure without opening a gap in the upper part of the profile. The decision to install is made reasoned and balanced.

Supply valves for plastic windows are an important component of the passive system. Through a small hole, cold air is taken in from the street and directed into the home. Warm oxygen is removed through ventilation ducts. Physical laws set these masses in motion, which ensures the functioning of products at air temperatures of +5 degrees.

In the hot summer, passive air exchange works only in the presence of forced exhaust.

The valve for a plastic window works effectively provided that several conditions are met:

• outside the window the air has cooled to a temperature of less than +5 degrees;
• the presence of a working ventilation system in the house or apartment;
• there is full air exchange between adjacent rooms;
• sealed entrance door (to neutralize the effect of oxygen “leak”).

Many owners are concerned about the question: does the ventilation valve for plastic windows freeze? Such an undesirable effect is possible, but only if the installation was carried out by amateurs. Even in severe frosts, it will not be possible to close the hole completely.

Do not be alarmed by the increase in noise level in the living space after the installation of the ventilation hole on the window is completed. Fresh oxygen enters through a small hole, so the reduction in sound insulation will be insignificant.

Supply ventilation valve: do-it-yourself installation on a plastic window

Installing the ventilation structure is easy. For an experienced master, 30-40 minutes is enough for this.

Installation without milling

You must first prepare several tools:

• air exchange product;
• well sharpened knife;
• screwdriver;
• half meter ruler.

To install the supply valve, it is necessary to dismantle part of the window seal

Do-it-yourself supply valves are installed on plastic windows only after preliminary marking of the flap. That's what a ruler is for. The sequence of work is determined by the design features of the valve. In most cases, it is enough to replace the standard seal with a complete one.

As for other models, PVC windows require no more than 1 hole in the profile structure. The most preferable option is the first one, since making a smooth and neat gap with your own hands is very problematic.

99% of manufacturing companies complete their products with detailed step-by-step instructions, with the help of which you can quickly equip a window opening with the appropriate solution.

Step-by-step instructions for installing a supply valve with your own hands are presented in the video:

Installation with milling

Milling means cutting a small hole in the block of the window opening.

To work you will need several materials and tools:

• sharp construction knife;
• powerful jigsaw;
• a drill and a set of drills (in most cases, 5 and 10 mm are sufficient);
• file;
• a template for a future valve of a suitable size;
• sealant.

In order for the supply ventilation in plastic windows to provide an optimal level of air exchange, it is important to strictly follow the following sequence of actions.

Supply ventilation valve: owner reviews

The structures installed using the methods described above cope perfectly with the issue of effective air exchange in the room. And even the smallest apartment from a “thermos” can be turned into comfortable housing with an impeccable level of ventilation.

The owners emphasize that such devices are not advisable to use in those regions of the country where severe frosts are rapidly replaced by rising temperatures. In this case, ice will form on the valve, and the unit will not be able to operate in principle.

The modern construction industry has developed sealed plastic windows, which are widely used. But, in tandem with natural ventilation, plastic double-glazed windows work differently. When using the built-in macro- and micro-ventilation modes, either the required volume of air is not provided, or a real draft is created. And when the plastic windows are closed, the hood does not work at all and stuffiness appears. The ventilation valve for plastic windows was an excellent solution to the problem. Without violating the tightness of window structures, the valves are capable of not only providing ventilation of the room when the windows are completely closed, but also.

Advantages of using ventilation valves:

1. Creation of microclimate parameters necessary for human health.
2. Increasing the service life of premises due to the removal of excess moisture and prevention of formation, especially in kitchens, balconies and loggias.
3. Heat savings due to controlled air flow.
4. Security: the likelihood of intruders entering is reduced, because ventilation occurs with the windows closed.
5. Ease of use.

Types of ventilation valves

Criteria for choosing window ventilation valves

In order for the operation of the supply ventilation valve on plastic windows to be effective, the multifunctionality of this device is necessary. To determine the class of ventilation valves, there are the following most important characteristics:

• Ensuring the required air exchange parameters: the valve must operate for an influx of outside air equal to at least 30 m3/hour (per 1 person).
• Ensuring the required noise level: for standard plastic windows this indicator is set at 30-35 dB.
• Features of winter operation: this indicator depends on the valve material, the difference between external and internal temperatures, and air flow parameters. For the effective operation of the ventilation valve and to prevent its icing, it is important to maintain high-quality thermal insulation of the valve structure and the use of a so-called “thermal break” made of plastic between the outer and inner surfaces of its metal body.
• Control method: it is possible to install supply valves for plastic windows with automatic, manual and mixed regulation(tandem of the two previous types).
• Valve location: exists window and wall installation option. When mounted on a wall, the costs of punching holes in the enclosing structures of the room and disturbing the exterior of the facade by the appearance of foreign elements increase significantly. The window option is more economical, simple and invisible.
• Method of installation of the structure: installation in an existing plastic double-glazed window or by replacing the double-glazed window with a new one and reducing its size.

Advice: You should not consider valves that are not equipped with the ability to regulate, since the need to change the air flow is dictated by practice.

Most popular designs

Aereco window ventilation valves

The French development of the Aereco company has found wide application in Russia. The supply ventilation valve is equipped with the ability to regulate by means of a sensor consisting of several polyamide plates, which, when expanded, drive the opening mechanism. Installation can be carried out both in grooves cut in the window block and on the wall of the room.

A special feature of Aereco valves is the removal of the humidity sensor from the valve, which provides a real reflection of the air parameters in the room. The advantages include the absence of the need for any types of energy, laying of air ducts and silent operation. The Aereco line of ventilation valves for plastic windows includes several modifications that differ in the degree of regulation and noise performance.

Air-Box window ventilation systems

The Russian company Mabitek decided to keep up with its foreign colleagues and developed truly universal Air-Box window ventilation valves, which can be installed on window units of any design. Its undoubted advantage is the ability to install it in the rebate of the window block, which makes the valve invisible.

The standard version (Air-Box Standard) involves the installation of two parts of the valve: the lower external one, which takes air from the street, and the upper one, which supplies a flow of fresh air into the room. The principle of operation of the valve is based on creating a vacuum in the room with the windows closed and ventilation running, under the influence of which the valve petals open and a constant air exchange of about 6 m3/hour is created.

Important: Supply ventilation to plastic windows will effectively cope with its task only with properly functioning exhaust ventilation.

This brand also produces a range of noise dampers labeled the Comfort series. They differ in the choice of installation options. Conventional installation involves milling the window profile, while millless installation can be done independently by removing the seal, and it will only take 10-15 minutes. These valves are intended to be manually adjusted. The Comfort S modification is designed specifically for fixed window structures and involves through drilling of the window block, so direct ventilation is possible.

All Air-Box valves are leaders due to their reasonable cost, efficient operation, relatively small dimensions and simple installation technology.

And about the various options for films for window tinting on this page.

Valve installation

Professionals use two options for installing ventilation valves. The first involves dismantling the old double-glazed window and installing a new one with reduced dimensions. In this case, the gap formed between the window opening and the block is occupied by the valve itself. This method has significant disadvantages: increased costs required to order and install a new window unit, and a reduction in the area of ​​translucent structures.

The ventilation valve for plastic windows, the installation of which is carried out according to the second option, is mounted in the place of the frame. The convenience of this method will be appreciated by the owners of premises in which sealed plastic double-glazed windows have already been installed. All manipulations to install the valve will take no more than half an hour.

The video demonstrates the installation process of the Air-Box slot valve.

Methods of regulation

Depending on the design of the valve mechanism, the flow of supply air on plastic windows with ventilation can be adjusted or have constant parameters. Optimal conditions for the internal microclimate of the room will help to create a valve with the ability to regulate, which can be either manual or automatic. The latter type of regulation is more comfortable and carried out based on the readings of the hygroregulation sensor, which monitors the air humidity value in the room. Regulation occurs by changing the cross-section of the air passage channel in several modes, up to complete closure. The maximum cross section corresponds to the highest humidity value. This type of regulation allows you to reduce heat loss, since ventilation occurs only when there are people in the room and the air humidity increases. When the room is empty and the humidity drops, the valve closes completely.

The choice of manual configuration method is accompanied by the need to constantly think about what time to ventilate b, what is the sequence of ventilation of the premises and the opening time of the valve required for ventilation. Manual adjustment can only limit the air flow in gusty winds. This setting is rougher and can lead to drafts in the room.

Care and maintenance

Another integral advantage of ventilation valves for windows is the ease of maintenance. For its comfortable operation, it is enough to clean its surface from dirt only once a year; this is all about maintenance.