Pipes for ventilation: major properties and selection parameters

When choosing a pipe for ventilation is necessary to take into account its size, material manufacturing and operating conditions

Certain parameters of quality of air ducts

For a device of natural and mechanical ventilation ducts necessary quality. They have to meet certain requirements. These settings include: integrity, ability to hold air pressure, a calculated for the project, the ability to ensure the free passage of air masses over them, the ability to maintain the necessary insulation.

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Two main characteristics are the basis of the labeling of tubes: cross-section shape and material from which they can be manufactured. In any high-rise or a private home installed air ducts of a rectangular or circular cross-section. Exhaust and supply air ventilation pipes are provided, the diameter of the cross section of which can be in a fairly wide range. For round - from 100 to 2,000 mm for rectangular - from 100x150 mm to 1600h2000 mm. sectional form is chosen for several important parameters that are required to fit the size and purpose of the room. The basic materials of construction for tubes for ventilation - this is the metal and plastic. Note some of them as the best - it is impossible. That is why on the market in sufficient assortment of both types.

For a device of natural and mechanical ventilation ducts quality needed

Metal pipes for ventilation: forms, advantages and disadvantages

Metal pipes may be made of such metals: zinc-black, fine-leaved black, stainless and galvanized steel, aluminum. The undeniable advantage of their operation are:

• long life, strength;
• smooth surface provides good aerodynamics;
• on the surface there is no accumulation of dirt, dust, grime;
• can withstand high values ​​of temperature and pressure;
• resistant to the effects of aggressive action.

The ventilation system of the production facilities of the mounted metal pipe

Galvanized pipes for ventilation

Exhaust ventilation in a private home is required to be designed properly. The choice of material for the ventilation pipes are always responsible and controversial issue. consumers often tend to favor such as galvanized pipe.

Important! Galvanized pipe having a small mass, thermal retains all the important characteristics common to all types of metal.

Plus, it is inexpensive in price and easy to assemble. Installation of the system is not difficult to make your own hands. From such pipe corrosion makes zinc layer, and during operation additional painting it does not need.

Duct of galvanized steel pipes

Metal tube: stainless steel, and black

stainless steel and black steel ducts in most cases installed in the factories. They are characterized by their ability to withstand high temperatures, increased fire resistance. Stainless steel is also suitable for transportation by air mass therein aggressive.

Ventilation pipes and connecting elements made of black steel

Plastic pipes - reliable, simple and easy

Many experts unanimously believe that the exhaust pipe for ventilation in a private home in self-assembly should be plastic. There are several types of polymers for the manufacture of pipes of this type. Particularly popular PVC or PVC pipes for ventilating. They have a mass of profitable advantages over the other, which explains the high demand for them:

• pricing: cheaper than metal;
• Easy to install: not require special mounting devices mounted most often with the help of certain devices of his own design;
• PVC pipe They have a wide range of sizes, which will be assembled from the components of the construction of any complexity;
• good leak air moving over them, since they have a smooth inner surface;
• sound insulation;
• They have a pleasing appearance and may be used already after decoration;
• low weight, which makes it possible not so firmly fasten the entire system;
• long service life.

Elements of a plastic ventilation

It is very important to choose the right option, especially if you intend to do everything with your hands, without the help of a qualified professional. Ventilation PVC pipes fitted with a set of buildings, but in most cases these are private homes.

Ventilation of sewers

According to its technical qualities sewer and vent PVC pipes are very similar. Most often, consumers are concerned about: whether it is possible to arrange ventilation of sewer pipes with their own hands, while receiving the desired result? No definite answer to give him, no one can. We can only briefly examine it, and a decision will be for the owners.

Of the sewer pipe is better to mount the exhaust ventilation system, rather than the inflow

The greatest difficulty in this process will cause a discrepancy between the size of the component parts. The diameter of one tube and another type does not match in its range. If a ventilation system, for example, of course, be installed from scratch, such a device is possible. But if the consumer wants to supplement the existing system of sewer pipes in his private home, it is unlikely he will succeed. The discrepancy between the size of the pipes themselves, the connecting elements will not allow the exercise plan.

Many are of the opinion that sewer pipes made of plastic, which releases harmful fumes. Deliver them to supply air systemAnd on the exhaust, you can resolve this issue. In this case, all the noxious fumes will be drawn from the premises. Many people do not fit the aesthetic appearance. Ventilation PVC pipes more attractive and suitable for any interior.

Duct in a private home is equipped of sewer pipes

Decisions on the ventilation device in a private house from the sewer pipes take the owners, commensurate their skills and capabilities.

Sandwich tube - the right solution for smoke ventilation

Sandwich pipe has a device for ventilating and features that provide a high level of thermal insulation and fire resistance. They are an integral part of these heating devices such as furnaces, boilers, fireplace in a private home. In the name is already defined basic idea of ​​their design: two pipes of different diameter are one in the same, and the space between them is filled with basalt seal. Sandwich wall chimneys have high thermal insulation performance. The exhaust air from the combustion products is unable to cool down, and according to the laws of physics goes up, and quickly evacuated the premises.

The structure of the sandwich pipe ventilating

Place their application determines the starting material for the manufacture. If heating is used solid fuels, it is only suitable sandwich stainless steel tube with a high coefficient of heat resistance. If you use gas for heating, it is sufficient to establish normal steel chimneys.

Sandwich pipe diameter can be different sizes. This allows you to easily pick up the chimney to any heater. When marking is used writing numbers through fraction. For example, 120/150. First - the diameter of the internal pipe work, and the second - outside diameter.

Example of the sandwich insulated chimney pipe for arrangement

Important! In order to calculate the diameter of the tube for ventilation, it is necessary to know the power of the heating equipment and the size of the cross section of its outlet.

Use of corrugated pipes for ventilating

Pipes of this design are a class of flexible ducts. They have a great list of benefits:

• high elasticity and flexibility;
• do all the ventilation system as a whole flexible, which is very important in dealing with some difficult issues during installation and reconstruction;
• durable;
• easy to use, easy to install their own hands;
• does not require special devices (adapters, tees).

Corrugated plastic vent pipe

Any corrugated pipe, regardless of the complexity of the configuration space in the house and what she diameter, easily bent at any angle.

The flexible tube can be galvanized, PVC and aluminum. Each type has advantages material from which is made and the advantages of flexible ducts directly. It is widely used in industries and in a private home, easy to assemble by hand.

Installation duct for kitchen hoods of corrugated aluminum

High-quality ventilation: proper selection of parameters and observing the operating

By proper selection of the parameters of the ventilation system depends on all of its subsequent performance. The main parameter is the size. Calculate the diameter of the vent pipe can be after the entire system has been designed and made a choice duct material. He has a different capacity, which affects the size indicators.

When making the calculation it is important to consider where the pipe is in a private home: residential or utility room. Since they have different indicators of ventilation rate. This figure we take out of the regulations (L). For wild-type ventilation system air velocity coming from its channels is 0.5-1 m / s, and for forced - 5.7 m / s (V). Then it is not difficult to calculate the cross-sectional area of ​​the channel according to the formula:

S = L / 3600V,

by means of which the diameter is easily determined.

Ventilation grilles for circular ducts

The second important point in the operation of air ducts is warming. Tubes for ventilation - metal and plastic - it is necessary insulation. This is a topical issue in the attic of the house. Galvanized, PVC and any other pipe in cold weather covered with condensation. This is due to the fact that the temperature inside and outside ventkanala much different.

Important! Thermal insulation of pipes for ventilation is absolutely necessary to constantly accumulating condensate leads to a different kind of damage.

Driving strapping plastic pipe production facility ventilation

Warming can be done using such materials: foam rubber, basalt fiber, polyurethane, polypropylene, mineral wool. sandwich channels have inside layer of the basalt fiber, and do not require additional insulation. Pipes for ventilation Warm last much longer. Their life depends on the timely and qualitative carrying out this procedure.