Exhaust fan with check valve for the kitchen, toilet or bathroom can have a shutoff element of different design.
Valves are divided by the type of control into 3 types:
The passive valve does not have a forcing element or mechanism and changes position due to air current. When there is no pressure, the damper closes and when the fan is operating, the damper is opened by the pressure of the jet.
Self-retracting valve has a leaf with a spring which is compressed when the sash opens under the pressure of the air. And then returns the damper blade to the closed position when the pressure is relieved and disappears.
A pilot-operated valve opens and closes the sash under the action of a mechanism. An electric actuator is most often used. But window, wall and other fan models that are accessible from both sides can use a manual check valve closure.
Household fan with non-return valve
Household fan with check valve provides effective operation of the system to extract stale air from enclosed spaces that lack the ability to ventilate naturally. They are installed in kitchens, bathrooms and toilets. Fan with a check valve is equipped with a special locking mechanism that blocks the return of air from the ventilation shaft back into the room.
Extractor fan Ballu Fort Quadro 2 FQ2-250
Reliable and safe in use device, presented by a household fan Ballu (Ballu) FORT QUADRO-2 FQ2-250, pleasantly distinguished by appropriate design and relatively small size. This model is very easy to install. Included fixing elements, which will significantly help in the process of installation of the device.
Extractor fan Ballu Fort Quadro 2 FQ2-250
- Operating mechanism is axial
- Air exchange of 600 m³/hr
- Power 30W
- Installation diameter 250 mm
- Room area 42 m²
- Noise level 45 dB
- Weatherproof enclosure
- Material plastic
- Front material plastic
- Width 27.5 cm
- Height 25.2 cm
- Depth 17 cm
- Weight 2.1 kg
Fume extractor Electrolux EAFB-100TH
Our rating continues with the Electrolux EAFB-100TH Exhaust Ventilator with a non-return valve. It is not only easy to use, but also very effective device, an important advantage of which is the presence of a timer and a reliable hygrometer. This model is nicely distinguished by a non-return valve and the inclusion indicator. Virtually silent, making it ideal for sound-sensitive installations.
Exhaust fan Electrolux EAFB-100TH
- Operating mechanism axial
- Air exchange 100 m³/ hour
- Power 15W
- Installation diameter 100 mm
- Room size 6m²
- Delayed shutdown
- Minimum shut off delay time 1 min
- Maximal delay time 20 min
- Humidity sensor
- Noise level 33 dB
- Weatherproof enclosure
- Material plastic
- Material front panel plastic
- Width 15.8 cm
- Height 15.8 cm
- Depth 8.1 cm
- Weight 0.43 kg
Fans with non-return valve for kitchen. 547 items found.547 products
Modern design. Seating diameter of the ventilation duct f 120 mm. Can be installed both horizontally and vertically. Moisture and dust proof casing. The motor on antifriction bearings ensures long service life
Floorstanding column fan Peter creates a comfortable atmosphere in the house and office, softly cooling the air. The special “Sea Breeze” mode enables the appliance to simulate real wind. Rotary mode ensures uniform distribution and good circulation of cooling.
Operating mechanism: axial, installation diameter: 100mm, power: 14W, airflow: 95m³/h
SILENT fans are made of high quality plastic, equipped with non-return valves and single-phase motors (230V-50Hz), insulation class B, with built-in thermal protection. The electric motor is attached to the casing with rubber “silent blocks” that hold the motor in place.
Working mechanism: axial, installed diameter: 300 mm, power: 178W, airflow: 2280 m³/h, front panel material: stainless steel
Household axial flow fans SILENT and SILENT DESIGN series are designed specifically to solve ventilation problems in bathrooms, toilets and other small rooms. Motor fixing system. The motor is mounted on rubber “silent blocks”, which prevents the fat and oil from escaping from the extractor fan.
Continuous or intermittent ventilation of bathrooms, showers, kitchens and other domestic premises. Exhaust or supply air ventilation, depending on how the fan is installed in the system. Small to medium sized air flows over small distances.
For permanent or intermittent exhaust ventilation in bathrooms, showers, kitchens and other domestic premises. For mounting in ventilation shafts or connecting to ducts. Modern design. Fitted with a friction bearing motor that does not require an additional.
Shuft EF 400 Kitchen Exhaust Fan Designed to remove air with high m moisture and grease, for example, from kitchens. Advantages: Maximum temperature of transported air is 120°C
Fan with modern design has a low noise level. Can be mounted on the wall or in a ventilation shaft opening or in a false ceiling. Fan with spring return valve and IPX4 moisture protection
Operating mechanism: axial, installation diameter: 100 mm, power: 16 W, airflow: 128 m³/h, front material: plastic
Fans Argentum are durable devices with a stainless steel front panel, they effectively remove excess moisture and unpleasant smells, are perfect even for the most modern and sophisticated interiors
Vents Quiet is a recessed ventilation unit for standard exhaust ducts. Contributes to the removal of unpleasant odors from the room and maintains an optimal microclimate. The device motor is very reliable, thanks to the use of a ball.
Household fan Dospel RICO 100 S is used for extract ventilation. Mounted on the wall.Mainly this fan is used in homes, apartments, houses, offices, commercial and ancillary facilities, restaurants, hospitals and kindergartens.
The name of the BREEZE exhaust fan perfectly describes its unusual shape and sleek design. It’s up to you to decide which BREEZE you want. festive Champagne, modern Chrome, quiet Gray Metal or inconspicuous Ivory! The distinctive feature of the BREEZE is the wide.
Operating mechanism: Axial, installation diameter: 125 mm, power: 18W, airflow: 232 m³/h
Operating mechanism: axial, installation diameter: 125mm, power: 16W, airflow: 180m³/h, front panel material: plastic
Front panel, housing and impeller are made of ABS plastic. Motors of this series are equipped with built-in thermal protection. With light indication of operation. Motors of this series of fans have a built-in thermal protection. The fan is equipped with a protection against rpm.
Operating mechanism: axial, installation diameter: 100 mm, power: 14W, airflow: 88m³/h
Decor-100 C fan is made of high quality plastic, complete with a check valve, light indicator and single-phase motor (230V-50Hz), insulation class B, with built-in thermal protection. The maximum airflow is 95 m3/h.
SILENT 300 CZ PLUS. quiet fan with increased airflow rate. The fan is suitable for bathrooms of 15 to 25 m2. SILENT domestic axial fans, designed specifically for the ventilation of bathrooms, toilets and other small spaces, where the requirement of.
For permanent or intermittent exhaust ventilation in sanitary rooms, showers, kitchens and other domestic premises. For installation in ventilation shafts or connecting to ducts. Modern design. The motor is mounted on plain bearings, which does not require additional ventilation.
Operating mechanism: axial, non-return valve, fixing diameter: 100 mm, power: 14W, airflow: 90m³/h, front panel material: plastic
Polar Bear (Sweden) with spring-loaded blades is designed for automatic shut-off of circular ducts when turning off the fan. The casing is made of galvanized steel, the blades are made of sheet aluminium. Valve casing design allows for.
Fan BREEZE 4C is used for permanent or periodic ventilation of sanitary rooms, showers, kitchens and other domestic premises.Design series BREEZE has a non-standard shape and sleek design. Front panel is easy to remove and wash or just to dust.
Reliable motor with low power consumption.Modern design, waterproof and dustproof.Low noise level. Designed for ventilating ducts f 150 mm.The front panel of the fan is made of stainless steel.Panel does not absorb grease, odors and any dirt.
Fan with modern design has a low noise level and a built-in timer for delayed shut-off. Can be mounted on the wall, in a ventilation shaft opening or in a false ceiling. The fan has a spring return valve and is equipped with a ventilation flap.
Operating mechanism: axial, installation diameter: 98 mm, power: 8 W, airflow: 115 m³/h, front panel material: glass
SLIM 5C Type: axial Exhaust D 125 mm with non-return valve Capacity: 140 m3/h Noise level: 30 dB
Exhaust Fan Testing With Series Bulb! Exhaust Fan Testing! Exhaust Fan
Fan BREEZE 5C is used for permanent or periodic ventilation of sanitary rooms, showers, kitchens and other domestic premises.Design series BREEZE has a non-standard shape and laconic design. Front panel can be easily removed and washed or simply cleaned of dust.
Fan with modern design has a low noise level. Can be mounted on the wall, in a ventilation shaft or in a false ceiling. The fan is equipped with a spring return valve and has IPX4 moisture protection
Operating mechanism: axial, check valve, set diameter: 100 mm, power: 7.50W, airflow: 90m³/h, front material: plastic
Check valves RSK series are designed to prevent air flow in the opposite direction in the systems of supply and exhaust of circular cross-section
Operating mechanism: axial, installation diameter: 100mm, power: 14W, airflow: 95m³/h, front material: plastic
Operating mechanism: axial, non-return valve, fixing diameter: 183 mm, performance: 25 W, air change: 220 m³/hour, automatic louvers
Low noise exhaust fans are made of high quality plastic.The motor is attached to the housing with rubber silent blocks that prevent the transmission of vibrations to the fan housing. Fans are equipped with non-return valves.
The Rainbow Exhaust Ventilator is designed for fans of bold design. There are 10 different colors from classic white and beige, minimalist black and silver, to vivid red, blue and green, and an unconventional mirror, so you can easily.
Working mechanism: axial, non-return valve, fixing diameter: 150 mm, performance: 16 W, air change: 250 m³/hour, front panel material: plastic
Operating mechanism: axial, installation diameter: 100 mm, performance: 14W, airflow: 98m³/hour, front material: plastic
Operating mechanism: axial, non-return valve, fixing diameter: 100 mm, wattage: 12 watts, airflow: 120 m³/hour, indoor area: 10 m²
Axial fan is a high-tech product of the new generation. Years of experience of qualified specialists, the use of innovative technologies in the production, quality and durability of components, materials of the world’s best brands. all this supports.
The fan is made in a classical design, so it will fit into any interior. Front panel, housing and impeller are made of ABS plastic. Motors of this series of fans have built-in thermal protection. has a light indication of work. The fan os.
operating mechanism: axial, installation diameter: 98 mm, power: 8 W, air exchange: 100 m³/h
Heavy-duty household, design, exhaust fan With outer panel made of glass, 100 mm, 169 m3/hour MMotors JSC series Household fans MMR 100- Heavy-duty, moisture-proof, designed for ventilation of bathrooms, toilets and kitchens, continuous and continuous.
Working mechanism: axial, installation diameter: 90mm, power: 15W, airflow: 70m³/h
Rugged motor with low power consumption.Modern design, water- and dust-tight casing.Low noise level. Designed for air duct 120 mm.Front panel of the fan is made of stainless steel.Panel does not absorb grease, odors and any contaminants.
Fan with modern design has a low noise level and a built-in timer for delayed shut-off. In addition to the timer, an adjustable humidity sensor with a range of 40% to 100% is built in. fan will start automatically when the relative humidity increases. Pre.
Operating mechanism: axial, installation diameter: 100mm, power: 14W, airflow: 95m³/hr
Axial fan is a high-tech product of the new generation. Years of experience of a team of qualified specialists, the use of innovative technologies in the production, quality and durability of components, materials of the world’s best brands. all this makes the axial fan.
For permanent or periodic exhaust ventilation of bathrooms, showers, kitchens and other domestic premises. For mounting in ventilation shafts or connecting with ducts. modern design. Installed the motor on plain bearings, which does not require additional ventilation.
Operating mechanism: axial, installation diameter: 100 mm, power: 14 W, air change: 95 m ³ / h
Household fan SolerPalau Silent-200 CZ serves to remove moisture and air from bathrooms, toilets. Thanks to the rubber silent blocks, with which the electric motor is mounted to the casing, the model has a low noise level and vibrations
Axial fan is a new generation high-tech product. Years of experience of qualified specialists, the use of innovative technologies in the production, quality and durability of components, materials of the world’s best brands. all this supports.
Code: 351912 Description: Exhaust Ventilator Electrolux Argentum removes the smell, cinders, soot and condensation formed in the kitchen during cooking. The body is made of ABS-plastic and stainless steel. Electric motor with Japanese rolling bearings o.
The fan is used for permanent and periodic ventilation of sanitary rooms, showers and bathrooms, kitchens and other domestic premises. Wall or ceiling installation. Installed in ventilation shafts or connected to the ducts. Has a classic design and light.
Working mechanism: axial, non-return valve, outlet diameter: 123 mm, power: 18W, air capacity: 150 m³/h, front panel material: plastic
What it is and what it’s for?
Fans with a non-return valve are very often installed in bathrooms and toilets instead of a natural ventilation system. This device allows to cope with the formation of condensation and steam during water procedures. This is a particular problem for those whose natural ventilation does not work properly, as well as those who use showers and bathtubs more than once a day. Lack of extraction will provoke dampness, and subsequently the growth of mold and fungus, which can cause serious damage to the health of the occupants.
Exhaust fans with a non-return valve have their own advantages, among them:
- Can be installed in bathrooms of all sizes;
- good compatibility with the classic ducts installed from the builder;
- possibility of installation not only on the wall, but also on the ceiling;
- Durability, thanks to a special ABS plastic;
- does not transmit unpleasant odors from the neighbors;
- Low noise level, there are completely silent models;
- High moisture resistance and fire safety;
- Good equipment (e.g. humidity sensor, motion sensor, short-circuit protection and others);
- 12 volt motor voltage.
But these fans also have disadvantages:
- High cost of equipment. Not everyone can afford to install a fan with a non-return valve, and even from a reputable manufacturer without significant cost. However, the service life of these devices is quite long and its cost will be repaid by the absence of problems in the bathroom related to humidity.
- Not all models can provide sufficient pressure, so when buying a fan, you should pay special attention to this point.
Reversible and supply fans
Sometimes it is necessary not to expel the air outside, but on the contrary, to borrow it from the street. Such necessity appears because of wide spread of plastic windows that closes air’s entrance from outside very tightly. Because of this, exhaust ventilation works poorly or almost does not work. Supply air can be filtered from street dust, soot and plant debris (pollen, down).
Like the exhaust, the supply air also often has a check valve. The air can be additionally heated during cold weather or ionized for disinfection. There is a good one on this topic
There is a supply system without fans. Video on the subject:
Reversible has a motor that can not only rotate in one direction. Accordingly, it can operate as both a supply and exhaust fan, making it very versatile. (A volute cannot be effectively used as a reversible fan.) The reversibility property no longer allows the use of simple check valves in such fans. Instead, they use electromechanically-operated shutters, which makes the device much more expensive.
Fan in the kitchen hood, unless it is equipped with its own fan, it is advisable to buy a duct type and insert it in the middle of the duct that goes from the umbrella (hood) to the outlet device. It should also be understood that over time, it will be thoroughly contaminated with soot and oil, which means that its design should allow it to be easily disassembled and cleaned.
When to think about a non-return valve
The main sign that there is something wrong with the ventilation is the return of odours. There are many reasons for this: from improper planning, especially for private homes, to clogging with debris, dust or snow. Also reverse thrust occurs during repair, when the ventilation duct is deliberately blocked.
To check its work is possible as follows: it is enough to lean the sheet against the lattice, with the window in the room should be open. If the airflow retracts the paper, there is no cause for concern. But it still makes sense to insure the ventilation with a non-return valve.
If there is a furnace in the house, if there is a lack of air flow, their direction can be reversed. Or if another point of air extraction is installed in a ready-made ventilation system. Can’t ignore the changing environment. In cases where next to your house is built another or on the contrary demolished, the wind direction can change and cause a reverse draft. Also in a conflict can be powerful exhaust hoods and vents in older homes.
Parameters for selecting an exhaust fan
The range of fans with a non-return valve in stores is very good. There are devices for almost every taste and wallet, of different quality, design and functionality. To choose the best option that meets all requirements, it is worth to understand a few issues.
This can be calculated from the volume of the room and the air exchange ratio. Its range is recommended by sanitary authorities for residential areas ranging from 6 to 8, this is the number of full air changes in the room during the hour. This value depends on the number of occupants. Thus, for two users the number should be 6, for three users more than 7-8. Technically the performance depends on the capacity of the fan (specified in the operating manual). Its real capacity must be slightly greater than the calculated value.
Any bathroom, whether a sauna or a seemingly dry toilet is a room with aggressive conditions for electrical equipment: high humidity, temperature fluctuations and water vapor, the possible ingress of water and detergents. For the fan to work flawlessly in the given circumstances, it must have an IP marking as high as possible. This is stated on the packaging or in the passport of the particular appliance.
Operating Noise Level
This appliance moves when operating, so it makes a lot of noise. Even the most advanced devices are audible, there are no completely silent fans. To avoid causing discomfort to the fan, it should be selected with the lowest noise level during operation (see data sheet).
Indoor noise levels prescribed by health regulations are 55 dBA for short periods and 40 dBA all the time. Even the older models do not produce more than 35 dBA.
The power class tells you how economical the device will be.
Additional options are installed on fans for their more comfortable and economical functioning.
The humidity sensor sends a signal to the controls when the humidity value in the room exceeds a preset limit, thus triggering the device.
Exhaust fan with humidity sensor
Motion and/or light sensor allows you to organize the operation of the device at the exact moment when the user is in the bathroom. This is not a good solution, because during the short stay in the room, humidity can greatly increase, and ventilation during this time does not have time to. The second disadvantage: the motion sensor is triggered by certain actions of the person and can simply “not see” it.
Timers and on/off automatics are triggered in a preset order. In this case, you can calculate the frequency based on room volume, frequency of use, and other parameters.