Anemostat - what is it (full description), purpose and types of anemostats

In residential, public, office and industrial premises, to ensure an optimal regime air circulation and creating a comfortable microclimate, various types of ventilation are mounted systems. Some provide an inflow of fresh air, others serve to remove excess air.

There are ventilation systems operating in air heating mode. One of the components of such systems will be considered here.

What is anemostat? Term and definition

What can be associated with the word "anemostat"? For those who have not encountered this technical device, the first guess would be medical equipment or something related to physics.

They are not, but they will not be far from the truth.

This design is one of the types of air distribution ventilation systems to provide air conditioning and controlled distribution of air flows inside the premises.

Purpose of the anemostats. Why are they installed in the premises?

Along with ventilation grilles, diffusers, this design is designed to artificially control the movement of air masses along ventilation lines.

Grilles and diffusers represent a static structure designed for a certain volume and one direction of movement of the incoming air. The design of the anemostat is dynamic and provides the ability to adjust these indicators in manual or automatic mode.

Types of anemostats

As noted, ventilation systems are designed to perform various functions. The design of the anemostat provides for its use in any systems.

Ventilation

This type provides ventilation of the room and the extraction of unpleasant odors from the room, while simultaneously removing excess moisture inside the room with the air flow. Most commonly used in residential, office and public spaces.

Supply air

Designed to supply fresh air to maintain a comfortable indoor climate. They can be used to equip systems in any type of premises (residential, office, industrial). They can be used in air heating systems, both as a separate end part of the system, and and as an element of options for prefabricated, ready-made structures, including filters, fans, air heaters.

Supply and exhaust

By its design, this type provides a combined combination of room ventilation functions (exhaust, supply). Depending on the mode of use, this design is capable of supplying or exhausting air. As well as the supply type, this design can be used in autonomous ventilation systems, and as a part of the design of forced systems.

Types of anemostats in shape

The design of the anemostat is a housing, inside of which on fixed or "floating" lamels an adjusting screw is attached with a "plate" fixed to it. Depending on the intended application, the "plate" can be convex or concave.

The convex shape (in relation to the room) allows the efficient passage of the air flow in the equipment to ensure the extraction. The concave shape contributes to a more even distribution of the air flow while ensuring the flow of fresh or warm air.

Unlike a grill or diffuser, this shape creates a conical, circular pattern of airflow direction. When using structures with "floating" lamellas, it is possible to direct the air movement in the optimal direction (along the walls, ceiling).

The choice of material depends on the type of premises and operating conditions. The most common material for the manufacture of anemostats is plastic. This is due to the physical and chemical properties of the material (low weight, strength, chemical inertness in relation to the environment).

For use in ventilation systems with forced air heating, preference is given to a structure made of metal (galvanized steel, aluminum). For connoisseurs of artistic design, the structure can be made of wood or some other material. But such designs are made exclusively to order.

How is an indoor anemostat installed?

The installation of the device can be performed in any part of the room where ventilation lines are connected or according to the approved project. But in practice, the installation is usually carried out on a ceiling covering (suspended, stretch ceilings).

In the case of open systems, a rigid duct, the ventilation holes of which are usually located in the upper parts of the wall, installation is made on the wall, which does not affect the efficiency of distribution of air flows inside premises.

Methods for mounting anemostats

The device is designed for ease of installation. The simplest is installation on an open, rigid air duct. Equipment suitable for the diameter of the ventilation hole is selected, inserted and fixed on the supporting structure.

You can install directly the product body or the enclosure is mounted on the vent-mount mounting flange supplied with some product samples.

A more complex installation process is when one or more devices are installed on ventilation lines. In the case of installation during construction and finishing work, it must be borne in mind that an increase in the number ventilation openings due to the increase in the length of the laid air ducts, practically level the use of anemostats.

In the case of installation in a finished, equipped room on mounted ventilation air ducts, the main problem is the accuracy of determining the location of the technological hole for installation products.

Installation instructions

In places where flexible air duct systems are output, a technological hole is drilled (sawn through) with a diameter corresponding to the diameter of the ventilation duct. An anemostat housing is inserted into the air duct opening. The extended part of the device in the form of a circle (cuff) is attached to the bearing surface with self-tapping screws or construction tape, depending on the coating material. A supporting structure with a decorative circle is installed in the body. For reliable fixation, grooves and spacers are provided. The plate (shield) with an adjusting bolt is screwed into the support structure. It remains to adjust the required clearance for efficient use of the mounted equipment.

Useful Tips

It should be remembered that the installation of systems with automatic control is best carried out at the stage of construction and installation work. Otherwise, you will have to carry out the repairs again after laying the electrical cable and installing the switch.

During installation during construction work, when the installation of the enclosure is carried out during the laying process air ducts, and the rest of the structure is mounted after the completion of finishing work, the air duct opening need to close.

Popular manufacturers and models

Today, manufacturers supply quality products. The brands "ERA", "VENTS" produce all types of products. You should focus on the technical characteristics of the device, depending on the conditions of installation and further operation. The marking gives an idea of ​​the purpose of the structure, the grade of the material from which it is made and the maximum diameter of the structure.

Conclusion

Using anemostats, observing all the instructions for installation and operation provided for allows you to create a comfortable microclimate in the room, which will have a positive effect on well-being present. In addition to this, it is also an opportunity to make original, decorative changes to the interior of the room.