Assignment of a fan riser
Installing a phonewater is an ideal way to solve this problem. We will talk about this in this article.
According to the current construction norms in low-rise buildings, it is allowed to install a sewage system without fan communication. But sometimes the installation of the phonewater is still required in such homes. This is necessary in the case of simultaneous use of the bath and toilet, when draining a large amount of water at a time, that is, when the volume of a single drain fully covers the section of the sewer riser.
The toilet is installed on a pipe with a section of 110 mm, and the diameter of the drain hole of the tank is 70 mm. The combination of a bath with a sewage system has a section of 50 mm. That is, when draining only a bath or just a toilet bowl, the diameter of the sewage communication does not completely overlap. Plumbing devices and household appliances( for example, draining a washing machine) create small volumes of a single runoff. Therefore, if the house has one toilet and bathroom, the fan sewer can be installed at the discretion of the owner.
A pipe pipe is necessary in the following cases:
- When a house has more than two residential levels( floors), and each has a bathroom;
- When the house has a swimming pool or equipment that can drain a large one-time amount of water;
- If a sewer pipe with a section of 50 mm or less is installed;
- If there is a septic tank near the house.
Rules for the installation of fan tubes. Installation requirements for
When installing the fan pipe with one's own hands, the following principles should be observed:
- The section of the fan communication should be equal to the section of the riser on which it is installed;
- It is necessary to begin the installation of sewerage in a warm, and finish in the cold zone;
- The outlet part of the riser should be located in a place where unpleasant smells of the sewerage will be easily carried away by the flow of air.
The fan pipe is made from a sewer pipe of the same cross-section, in fact being a continuation of its continuation.
The device of a fan riser prevents the appearance of unpleasant odors due to the drying out of water in small siphons of plumbing fixtures if they are not used for a long time.
Exit from this situation with the help of the pipe pipes is as follows:
- warm air, which rises on the riser, creates a slight depression;
- in the bathroom scents do not penetrate, but are discharged through the siphon outside.
How to remove the ventilation pipe on the roof of the
For effective operation of the sewage system, there must be a high-quality ventilation.
For the correct installation of the fan communication, the following principles must be observed:
- Several risers can be connected by one fan pipe;
- The sewer pipe is combined with a riser pipe of the same diameter, most often 110 mm;
- It is prohibited to remove the riser equipped with fan tubes, together with the chimneys or ventilation.
- The fan riser should go no closer than 4 meters to the balcony or window.
The vertical riser is in any case output only to the roof at the optimum height( about 0.5 m).In case the roof is operated for various purposes, the riser outlet limit rises to 3 m. In this case, no additional exhaust devices are needed.
Fan sewer is laid in the prepared channel in the ventilation system. There are cases when a fan pipe is displayed horizontally through the wall, but so as not to spoil the appearance of the house.
Check valve on the fan pipe
The fan communications are provided with a non-return valve. The principle of its work is that after draining the valve cover opens, skipping the drain, and then closes, not missing anything back.
Fan valves prevent the penetration of rodents in communications, the direction of drains back to the sanitary facilities, the ingress of impurities.
The valve can be installed both inside the fan riser and outside. Before installation, the pipe must be cleaned and degreased. The non-return valve is attached to the counterflow of the drain. His petals should bend toward the sanitary facilities.
Mounting the fan valve is carried out on dry surfaces, without any lubricants.