Best Check Valves for Ventilation for 2020

The ventilation system is an essential element in any building. It effectively removes unnecessary and unpleasant odors, and also helps to ventilate the room. If its work is disrupted or becomes incorrect, then the person will quickly feel not only smells, but also the exhaust air from the natural ventilation channel. It will become impossible to be in such a house or apartment without a respirator. To avoid this, it is enough to buy a special device. Therefore, the editors of the site "bestx.htgetrid.com/en/" have prepared for you a rating of the best reverse ventilation valves for 2020.

Design features of the device

When a person first sees this device, there are no questions about the principle of its operation. After all, the design is as simple as possible. Despite this, without it, it is impossible to organize proper ventilation of the room. If there is no valve, then the exhaust air will stop leaving the room. There are several reasons why this happens:

• Absence or improper tightness;
• The ventilation duct is clogged with debris;
• The hood is placed in the wrong place;
• The combustion thrust is enhanced due to the use of a furnace structure;
• Disruption of normal ventilation due to the installation of a powerful exhaust system in one of the apartments, this often occurs when some owners install an air duct without taking into account the structural features of the building;
• Uneven ventilation due to the presence of several exhaust systems in one apartment.

All of these reasons are common in large cities. To prevent them from affecting normal ventilation, manufacturers recommend installing a check valve. Its installation will take a minimum of time, but its effectiveness will remain for a long period. The main element of the design is the blades located on the same axis. They open only in one direction, and if there is a reverse movement, they close, preventing the entry of unpleasant odors into the apartment.

Varieties of valves

By design, the valves can be:

• Single leaf. An effective but less common option. During the movement of the air flow, pressure is exerted on the valve flap, which makes it open and releases excess odors. When there is no movement, the sash closes under the influence of reverse thrust. This prevents unwanted odors from entering the room. If a person uses natural ventilation, this option is most preferable.
• Butterfly valve (double-leaf). The most common model, which is equipped with two curtains. They open due to strong exposure to air and close when there is no movement. Everything works automatically without user intervention.
• Jalousie. The principle of operation of this device is the same as that of the first option.The only difference is the size. Therefore, it is installed in large manufacturing plants or in large houses.
• Membrane type construction. The principle of operation of the device is based on changing the position of the plate due to the influence of air flow. The equipment is widely used in places with natural ventilation, since it does not require a strong impact on the main element.

These are not the only differences, there are also models:

• With manual control, the device is installed in large enterprises where high air movement is present. Automatic products are triggered without user intervention, this option is more suitable for installation at home.
• They differ in the way of installation. There are horizontal and vertical options.
• There are round and rectangular products. To choose the right option, it is important to understand that the shape depends entirely on the features of the size of the air channel section.
• The bandwidth is also taken into account. It all depends on the volume of air that passes through the valve.
• The last difference is the material of manufacture. Plastic ones are suitable for installation in houses and apartments, as they emit less noise during operation. For office buildings and manufacturing plants, it is recommended to install metal products. They are larger and have a high flow rate.

How to choose the right equipment?

In order for the check valve to serve as long as possible, you need to know some of the selection features. The first thing to consider is the maximum air flow rate that is present inside the duct. It should be remembered that the blades must open even under slight pressure. Because this is the only way effective elimination is formed. Some models are equipped with a reverse fan to increase valve performance. Power is selected only based on the area of ​​the room.

Also an important point is the ambient temperature. Single-leaf devices are not able to cope with negative temperatures, so they will not be effective at all. To exhaust air outside, it is necessary to install a louver type check valve. It withstands low temperatures and does not break over time.

The installation feature is also taken into account. Because there are models that need to be placed only at a certain angle. There are also universal versions that can be installed as you like.

The cost of the structure is usually in last place, since it has little effect on anything. It is better to look at the main parameters: the type of section, dimensions, what material was used in production, etc.

Can I make a valve with my own hands?

It is not uncommon for an apartment or house to have a ventilation duct of an unusual shape or size. Then not a single market offer will suit a person and it is necessary to make the device with your own hands. Such a solution will cost several times less than a custom-made product. It will take a minimum of time and effort to create this structure.

The first thing to decide on is the type of ventilation. If there is a natural one, then it is best to make a membrane-type device, but single-leaf products are also suitable. For the latter option, you need to pick up a hard material. You also need to pay attention to some points:

• The plate should not have gaps, even small ones. It is best if it fits snugly against the walls so that gaps cannot form.
• If the air flow often changes direction, it is necessary to make sure that the knock of the plate is minimal or absent altogether, otherwise it will be impossible to fall asleep at night and concentrate on rest during the day.

To create the blades, it is better to use high quality materials, for example, lavsan film. It is sold in all hardware stores at an affordable price. The element diameter must not exceed the dimensions of the ventilation duct.To prevent the blade from deteriorating during reverse thrust, it is recommended to install a plastic grill. This is the most practical and durable option.

Correct installation

The check valve can be installed both at the beginning of the ventilation duct and at the end. To do this, you need to drill holes for fastening, but before that it is important to make the correct markings. For this, the device body is installed in the duct pipe.

After drilling, the check valve is installed, it is better to use dowels. During this operation, it should be remembered that there should not be any gaps, even if they appear, then it is necessary to seal them with a special sealant on any basis. The main thing is that it provides reliable and durable adhesion, and also has antifungal properties.

Rating of the best plastic valves

TiRo Market d-120 ОК120

A simple but effective device that will prevent air pollution in the apartment. Made entirely of plastic. Therefore, during operation, the user will not hear extraneous noise. The fastening is convenient, the case is made with high quality and fits snugly to the wall, leaving no gaps. Diameter - 120 mm.

The average price is 270 rubles.

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FreeImport AAA3353

Reliable non-return valve, sold assembled. Provides high quality ventilation in any room. Even if the air flow is small, the valve will open and eliminate it, so as not to pollute the room with exhaust gases. The design is simple, and installation does not take much time. All holes are marked, so a person just needs to hold the device against the wall and make marks.

The average price is 160 rubles.

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Vent KO 125mm

A simple device that will help remove unpleasant odors from the apartment, as well as prevent their further formation. The body is made of durable plastic and can withstand light loads. The flaps are triggered without user intervention, without emitting pops. A universal diameter will fit most rooms.

Sold at a price of 300 rubles.

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Rating of quality models with grilles

Grill with a valve from LLC "Revisionzona"

A classic device that is designed for installation in residential and office premises. The operation is completely silent. The main design feature is a tight fit to the walls, which is why it is not necessary to use a sealant.

Sold at a price of 500 rubles.

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AURAMAX C 5S C

A beautiful modern product designed for residential installations. The design provides for the presence of a fan and a check valve, which increases efficiency significantly and eliminates even minor odors. The product is made from plastic. Provides a snug fit against the wall.

The average price is 1,600 rubles.

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Ventilation grill made of ABS from Revisionzona

An excellent product that will purify the air and beautify the room. The grille is equipped with a non-return valve, which is triggered at the slightest air fluctuation. Installation does not take much time and can be done by an ordinary person.

Sold at a price of 450 rubles.

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Rating of the best models of the "Butterfly" type

ERA 12SKTS 120mm

A classic product suitable for public or home installations. The flaps operate at low pressure, which facilitates rapid air removal. For greater efficiency, the blades are equipped with special springs. Fastening is carried out with clamps. A damper seal ring is located inside the structure.

The average cost is 275 rubles.

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Shuft RSK 100

A universal device that can be placed anywhere, including outdoors. Withstands temperatures up to -40 degrees and does not corrode. The body is made of high quality steel, which is covered with a protective layer. To prevent the blades from knocking while driving, there is a rubber seal that absorbs all noise.

Sold at a price of 290 rubles.

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Polar Bear RSK 355 butterfly

Nice valve that works automatically and doesn't make much noise. The body is made of galvanized steel. A damper ring is located behind the blades, which absorbs excess noise and does not distract a person from work. The valve can be installed in any position, which is a great advantage.

Sold at a price of 1,280 rubles.

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TOP-3 models for production sites

TECHNOCENTR LLC general industrial valve 150x150

Reliable device for removing large volumes of polluted air. Adjustment is carried out manually using a special handle. Thanks to this solution, the product can be installed in one position, which contributes to good ventilation of the room.

The average price is 16,300 rubles.

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Industrial valve KOp from TD "KOMTECH"

An excellent option that is suitable for installation in large rooms. The body is made of durable material that does not corrode. The adjustment is carried out using a special lever.

Average price - 1,200 rubles

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TKOG-05-250x500 from Vympel LLC

An excellent valve that will help organize proper ventilation of the room and eliminate toxic and unpleasant odors in a few minutes. The body is made of a thick layer of metal, which increases the durability and reliability of the device.

It is sold at a price of 8 800 rubles.

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Finally

Installing a check valve will allow the user to prevent unpleasant odors from entering the apartment. Therefore, the air will always be fresh and clean. So that the installation does not take much time and does not require repeated implementation, it is better to entrust it to a specialist or follow the basic rules. For example, the membrane must fully match the diameter of the hole, and the structure must fit snugly against the wall. If you have experience using the models described in the rating, or more interesting representatives, tell us about it in the comments.