Noiseless bathroom fan with non-return valve

Noiseless bathroom fan with non-return valve

Ventilation is an important factor that should not be neglected when building a bathroom. Many mistakenly believe that it is only needed to remove unpleasant odors. Therefore, it often happens that the ventilation holes are closed during repair, and with unpleasant odors are fought with the help of air fresheners.

Silent fan with check valve

In fact, the ventilation function is much wider. It should ensure the normal circulation of air in the room, maintaining a certain level of humidity. This prevents the appearance of condensate, mold, fungus and insects in the bathroom.

Often people refuse a fan in the bathroom because it produces a lot of noise. Just not everyone knows about the existence of low-noise and noiseless models that do not violate the peace of the household at all. We will tell you about these useful and convenient devices in today's article.

Silent fan with check valve

Device

In this article we will talk about fans equipped with a non-return valve. It is a small and very simple mechanism that prevents the air from entering the ventilation duct back into the room. Check valves are usually made of plastic or stainless steel. They consist of three basic elements - a frame, two shutters, barriers and a pin, to which the doors are attached.

In addition to the non-return valve, the following elements are present in the design of the noiseless fan: air intake grille, aerodynamic impeller, vibration damping inserts and engine.

A silent fan with a non-return valve

Principle of operation

The principle of the non-return valve, regardless of where it is installed - in the ventilation duct or in the sewage pipe - will be the same. It is designed in such a way that the movement of air (or water) can occur only in one direction. If you try to move in the opposite direction, the air will run into a barrier from tightly closed flaps.

Non-return valve for bathroom fan

The valves are actuated by the movement of air, which in turn takes place when the fan is turned on. Thus, the air is drawn in until the fan turns off. After disconnection, the doors slam shut, blocking the air back way.

The principle of the non-return valve

Due to what the fan is silent?

A noiseless fan for a bathroom becomes, thanks to some design features, which we will briefly describe.

  • First, in the engine arrangement there are special vibration isolating elements that absorb vibration, which is the main source of noise.
  • Secondly, manufacturers carefully consider the external appearance of the fan. The air intake grille has a special, streamlined shape. In addition, the choice of the lattice material also plays an important role - the air resistance depends on this.
  • Thirdly, the silent operation is achieved through a different bearing model. In addition to noise-absorbing properties, they have a high degree of reliability and do not require additional maintenance (in particular, lubrication treatment).

Noiseless bathroom fan with non-return valve

Noiseless bathroom fan with non-return valve

Noiseless bathroom fan with non-return valve

Types

Manufacturers of domestic ventilation equipment offer three varieties of fans that are suitable for installation in the bathroom:

  • radial - large-scale models with a spiral grating, which today prefer to be installed mainly in industrial premises;
  • axial - are familiar to each device, which bring air into motion with the help of rotating blades; such fans can provide air inflow and exhaust;
  • channel - the quietest of all presented varieties, since they are mounted not on the wall, but directly into the ventilation duct; Thus, the noise of the operating fan simply does not reach us, since the device is in the distance.

Radial fan for bathroom

Axial fan for the bathroom





Duct Fan for Bathroom

Kinds by the principle of action

In silent fans, different types of check valves can be used. Depending on the principle of operation, three types of these devices are distinguished:

  • a non-return valve of a controlled type - operates on electricity or is manually activated;
  • self-closing check valve - actuated by tensioning or loosening the spring;
  • check valve of passive type - works under the influence of gravity, opens only towards the flow of air.




Check valve of the fan





Check valves of the fan

Overview of models and prices

We offer you an overview of the best models of silent fans for the bathroom equipped with a non-return valve:

Model

Power, W

Air exchange, m3 / hour

Noise level, dB

Features

Average price, rub.

VENTS 100 Kwait

7.5

97

25

- 5 year warranty

1600

Soler Palau SILENT-100 CZ DESIGN 3C

8

75

26th

- a set of colored interchangeable strips for the case

4500

Soler Palau SILENT-100 CMZ

8

95

26th

- ball bearings, maintenance-free

2300

Soler Palau SILENT-100 CMZ DESIGN 3C

80

26th

- shoelace-switch

2500

VENTS 100 Kwait T

7.5

97

25

- sleep timer

2300

VENTS 100 Kwait TN

7.5

97

25

- humidity sensor

3100

VENTS 100 QUATT TR

7.5

97

25

- on timer;

- presence detector

3100

Soler Palau SILENT-100 CRZ DESIGN-3C

8

85

26th

- on timer;

- a set of colored interchangeable strips for the case

4800

VENTS 100 Quint-STYLE

7.5

90

26th

- unusual body design;

- 5 year warranty

1700

VENTS 100 Quit WTN

7.5

97

26th

- on timer;

- humidity level sensor

4140

Tips for choosing

  • When choosing a fan for the bathroom, several important parameters must be considered, including power, air exchange rate and noise level. Noiseless are devices whose power is within the limits of up to 26 dB.
  • The air exchange rate of the fan is determined by the area of ​​the room. More details on how to calculate the necessary air exchange can be found in our article "Ventilation in a wooden house. Features of ventilation in the bathroom.
  • For use in rooms with a high level of humidity (which include the toilet and bathroom), you need to choose a waterproof fan model.
  • Also pay attention to the availability of additional functions. So, fans are very convenient, equipped with an automatic turn-on timer, a motion sensor (presence) and a humidity sensor.




Noiseless bathroom fan with non-return valve





Noiseless bathroom fan with non-return valve





Noiseless bathroom fan with non-return valve





Quiet color fan for a bathroom with a non-return valve - abstraction





Quiet color fan for a bathroom with a non-return valve - abstraction





Quiet color fan for a bathroom with a non-return valve - abstraction

Installation

Self-assembly of the fan - the task is quite feasible, even for those who have minimal experience of repair work. It is only necessary to carefully read the instructions, stock up on the necessary tools and patience.

The easiest way to install conventional overhead fans of the axial type - these are used in bathrooms most often. They are mounted over the vent with a set of fasteners. In this case, the cross-section of the air intake grate should correspond to the dimensions of the ventilation opening.

In order to connect the fan to the network, it is necessary to connect the cable from the nearest junction box to it (if the fan is installed in this room for the first time). Do not forget that the wiring should be completely protected from moisture - the wires can be laid in strobes, hidden in special channels, hidden under a suspended ceiling or a false wall of gypsum board.





Mounted noiseless bathroom fan with non-return valve

In the next Youtube channel video, you can see how to mount a noiseless fan in the bathroom yourself.

If the bathroom is equipped with a window, you can try to make a noiseless fan yourself. A self-made fan is attached to the window. He can work on blowing and blowing. At work such fan practically does not make sounds.

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