Sewer aerator - get rid of unpleasant odors

18-02-2018

Instruments

One of the important aspects in the design of the sewer system are measures to prevent unpleasant odors from entering the premises. There are several options for the implementation of the plan: the first is the use of a siphon with a water seal; the second is the removal of the top of the common sewer riser above the roof. But there is another way to get rid of the smell, use a sewer aerator - 50 or 110 mm in diameter.

This is what this little “defender” of residential and administrative premises from sewage smell looks like.

Purpose and design of the aerator

The aeration valve for sewage is one of the components of sewage ventilation, which is responsible for:

The impossibility of penetration of unpleasant waste odors inside the premises.
Providing a certain pressure inside the network to prevent the overflow of sewage through the siphons of sanitary equipment in the premises.

Interesting! Instructions for the provision of ventilation of sewage systems require the removal of a riser to a height of at least 1.5 m above the highest point of the roof. Imagine the feelings of the residents of the upper floors, if for some reason the standard is not maintained.

In simplicity, a sewer aerator is also called a sewage vacuum or air valve. Therefore, when you decide to acquire this device, do not forget about its various nominal modifications, so as not to get confused.

The valve creates the necessary level of ventilation in the sewer system.

Structurally, any sewage valve aerator consists of the following elements:

A body made of rigid polymer (PVC) ensures reliable sealing of the pipe.
Inlet through which air enters at the time of gas discharge in the pipeline.
Opening mechanism.

Ask what the principle of the sewer aerator? In fact, everything is quite simple, when the pressure in the system drops, the valve opens, which until then blocks the side opening. It remains in this position until the pressure in the system stabilizes, and then closes under the action of its own gravity.

For maintenance (cleaning) and inspection of the state of the device, the top cover on the thread is arranged. The tightness of the body joint with the cover is provided by a rubber gasket.

Installation of aerators

The aeration valve can be installed in different places:

A check valve is connected to the toilet.

Fun pipes.
Common risers overlooking the technical floor.
Toilet sinks etc.

Small diameter aerators

The design of the aerator is selected depending on the place of its installation. Vacuum sewer valve aerator of small diameter (up to 50 mm) is used for air dilution in horizontal parts of the sewage system.

It is installed on:

Sinks.
Sinks.
Baths, etc.

The need to install an aerator in these areas may arise:

In the transition from one pipe diameter to another (from 50 to 32 mm).
With a large extent lounges.

Tip! When laying pipes over long distances, make sure that the necessary slope is maintained for the free movement of drains by gravity. Otherwise, with insufficient slope, the liquid will stagnate, thus creating a source of unpleasant odors from sewage.

The device described above is simply equipped - with a locking device in the form of a ball, which, when exposed to the membrane, closes the drain connection. Such is the principle of operation of the aerator for sewage with a diameter of 50 - 32 mm, the task of which is to guarantee the impossibility of counterflow.

The device is practically not subject to mechanical wear, which guarantees its uninterrupted operation for many years

110 diameter aerators

Cylindrical sewer aerator 110 is installed on:

Fun pipes To be more precise, it is built directly into the pipe, without changing its configuration and size. Installation of the device is provided for pipes overlooking the technical floor.
It is also possible to install such a valve on auxiliary risers, when two families live in the house. In this case, at least one riser must be placed on the roof of the house.

Note! The aerator must not be installed in a horizontal or inclined position.

The price of sewage valves varies greatly depending on the manufacturer. Products of domestic manufacture can be purchased for 120-130 rubles. (50 mm), 320-340 (110 mm).

The cost of devices of identical sizes of foreign production will be respectively:

Firms Mcalpine - 320/620 rubles.
Mini-Vent with a diameter of 32/50 mm - 1580 rubles.
Maxi-Vent with a diameter of 75/100 mm - 2350 rubles.

Most of the devices are similar in appearance, valves differ only in product quality

Installation Features

Those who first decided to do the sewage system with their own hands, you must adhere to certain rules for installing aerators of small diameter.

The similar valve is mounted:

Behind the extreme installed sanitary device is no closer than 100 mm.
On the pipeline with the smallest diameter, as the rules of the internal sewage system do not allow an increase in the diameter of pipes from the riser.
In the highest position relative to other devices connected to this pipeline.
Not lower than 350 mm from the floor when there is a drain in the system, in order to avoid draining into the aerator and clogging of channels, which will adversely affect its operation.

Conclusion

We hope that the above information was useful for you, and you now know, not only what a sewage aerator is needed for, but also what types of it exist. This avoids costly sewage repairs in cases where blockages occur and odor appears.

You save not only money, but also time, as you can eliminate the cause yourself. Although we recommend, in the event that the sewer is still being planned, prepare and install aerators in advance. In the presented photos and videos in this article you will find additional information on this topic.