Plastic pipes for ventilation - we study all the features

Natural air circulation in the premises is a very important attribute that affects their microclimate. In this regard, rectangular plastic pipes for ventilation are quite popular today. We will tell you about these and other models below.

General information

First of all, our instruction will reveal some theoretical information that will help to understand all the features of these engineering systems.

What factors depends on traction

Traction - is the speed of air movement in the room. This characteristic has a decisive influence on the level of comfort.

So let's see what it depends on:

• When the outside temperature is significantly lower than in the building (in the Russian climate, this situation is observed for about half a year), the amount of exhaust air is at a high level. However, when it gets warmer, it decreases significantly. As a result, natural ventilation is not very effective.
• The amount of air directly depends on two factors: the thrust force and the cross-sectional area of ​​the channels. In turn, two factors affect the traction: the length of the channels and the difference in temperature inside the house and outside the window.

As a result, we obtain a significant decrease in work efficiency in the warm season. Of course, we do not have the opportunity to influence the climate.

Therefore it is necessary to use auxiliary means:

• Installation of fans in the walls.
• Warming mines. This measure prevents the reduction of thrust and does not allow the formation of condensate.
• Calculations of the location and cross-sectional area and length of the channels to increase the maximum efficiency of the system. We will talk about this below.

Choose the length and cross-section of pipes

The dimensions of plastic pipes for ventilation is a very important aspect that you just need to understand.

So, making your choice, follow these simple rules:

• Pipes must be selected such that their cross-sectional area is not less than 0.016 m2. This is necessary in order to ensure the smooth passage of air.
• The side of one channel should have a length of at least 10 cm. However, if we are talking about exhaust, then in this case it is better to give preference to the standard 14x14 cm.

• If the section is 14x27 cm, then the length of the channel must be at least 2 m.

Note! Experts recommend that the length of the ventilation ducts located on the same floor should be approximately the same. Otherwise, the correct operation of the system cannot be guaranteed.

Large length increases the thrust. If there is a weak air flow, then in shorter lines a strong decrease in thrust will be observed. For apartment buildings, this situation is quite widespread.

To avoid this property, you must align the channels throughout the house. However, there are times when this is not possible. In such situations, it will be necessary to reduce the force of thrust in large channels by mounting a regulating grid.

Special features

Now it is the turn to understand all the features that the products described by us possess. To successfully use such a system, you must meet them.

General information

Plastic ventilation pipes are widely used in many areas. Until recently, galvanized iron constructions were used to perform this task. But with the advent of more advanced technologies, he faded into the background.

Now used products from:

• Polyurethane.
• Polypropylene.
• Polyvinyl chloride.

Most often, the latter type is used. Plastic rectangular PVC ventilation pipes are completely harmless to human health.

Merits

Now consider the key advantages that have plastic ventilation pipes for exhaust. (See also the Exhaust Tubes: Features.)

It is worth saying that there are quite a lot of them:

• Maximum corrosion resistance (in this aspect, this material wins over its galvanized counterparts). From this point of view, plastic is an ideal material, because it is not at all afraid of such an impact. The need for treatment with various protective compounds disappears.
• Affordable price (The cost price is several times lower than that of other competitors). Currently, this factor is often decisive. Many people make their choice based on the financial component.

• Ecological purity. Contrary to popular belief, such polymeric compounds are completely harmless to health.
• The breadth of diversity. Thanks to manufacturing technology, the dimensions of plastic ventilation pipes can be completely any. They can be given any, even very complex form.

Tip: use the appropriate fittings to create bends and pipe wiring.

• Ease of use. It is completely easy to install them yourself, even to an inexperienced person in this field. Ventilation from plastic pipes with their own hands can be created even in the absence of any skills.
• Another equally important quality is the absorption of noise.. Certainly familiar to many unpleasant extraneous sounds from metal pipes.
• No air flow resistance due to perfectly smooth shape. Also, this property greatly facilitates cleaning.

disadvantages

Unfortunately, even the most enviable medal has its reverse side. The products we describe are no exception to the rule.

Therefore, let's take a look at their shortcomings:

• The first and most important drawback is the fear of fire. In many cases, this is a decisive factor in the selection. This property does not allow use in baths, saunas and fire hazardous facilities.

It is interesting: already at a temperature of 80 degrees most types of plastic begin to lose their qualities.

• By their strength characteristics, they are inferior to their metal counterparts. So, in the case of even a slight blow, they just cracked. Of course, it is now possible to find samples with increased strength indicators on the shelves, but they are much more expensive.
• Also it should be noted and the fact that such material is not able to withstand high pressure.

Conclusion

Well, here it is time to sum up our narrative, but if you have not managed to understand all the nuances, then in the presented video in this article you will find additional information on this topic. Watching this video will allow you to comprehend some subtleties.