Sink for kitchen sink - hydraulic valve for sewer system
Any devices intended to receive wastewater should be equipped with special elements that are able to protect the premises from the penetration of unpleasant odors from the sewer network. Special difficulties during the installation of these products usually do not arise if you even have to install a siphon for a kitchen sink with two bowls.
However, some of the nuances still worth knowing.

Classification methods
This product can be divided into separate categories on several grounds. However, most often the classification is carried out depending on the design features, the material of manufacture and some other factors. In the selection process, it is necessary in any case to consider the operating conditions.
Design performance
Plumbing fixtures that are installed between the entrance to the sewer pipe and the drain hole may differ slightly from each other from a constructive point of view, but their principle of operation remains unchanged.
Usually there are two types of siphons, the features of which can be further.

- Tubular products have a plain design. They are conductive elements with a bend to create a water gate. The option with a corrugated pipe allows to facilitate installation process in limited space.
- Bottle counterparts are used more often for washing, as they take up less space. The main part of the form resembles a bottle, from which the outlet branch pipe departs. It is above the bottom level, so a cork is formed inside the water.

Note! Modern products for sinks are often supplied with additional taps designed to connect various appliances and the second bowl. If necessary, products with overflows are used.
Materials for production
The most popular designs of plastic, as their price is low, and performance characteristics are at a high level. Due to its chemical resistance, it has been possible to exploit these products for many years. However, these siphons poorly tolerate mechanical effects.
The impact strength can boast metal counterparts, the life of which is measured in decades. Stainless steel, brass, copper or bronze is commonly used as the base material.

As for the cast-iron elements, they are rarely used at present, which is associated with the possibility of rapid clogging, since the rough surface of the material contributes to the accumulation of various deposits. However, such products have good indicators of strength.
Principle of operation
Regardless of the type of siphon installed, the operation is carried out according to the same scheme. Wastewater passes through the flask or bend of the pipe, after which part of the liquid remains inside. Thus, a hydraulic valve is formed, which does not allow odors from the sewer network to enter the room.

With proper installation, the device is not disturbed. However, in the event that the sink does not use for a long time, the wave may appear odors. To eliminate this problem, it is enough to open the faucet, thereby making a change of water in the sump.
About the installation process
To properly install the siphon for cleaning the kitchen, you need to know the sequence of actions performed. Otherwise, there is a risk to spend a lot of time without achieving the desired result.
For those who wish to install the device with their own hands, presented a special instruction.

- If the equipment is being replaced, the old siphon is first dismantled. In this case, the connecting screw is turned back, holding the decorative grille and the nipple.
- The assembly of the new item begins. To do this, an annular gasket is placed in the groove of the housing, after which it is twisted. Sealing is not recommended, as the cover will be periodically unscrewed for cleaning.
- Next, the coupling nut and the gasket in the form of a cone are put on the branch pipe. After that, this part is inserted directly into the flask. When installing, do not push the nozzle to the stop.
- Rigid or corrugated bend is docked with the lateral component. At the same time laying is surely put on a pipe. Fastening is made with a coupling nut.
- In the final part, the collected siphon joins the sink. The protective mesh is embedded in the drain hole, and on the other hand the pipe with a rubber gasket is fixed.
Attention! Before dismantling the old device for creating a water seal, you need to put a bucket or any other container under the sink so that the remaining water does not fall on a clean surface.
Cleaning activities
Having installed a siphon under the sink in the kitchen, sooner or later it will be necessary to deal with the removal of accumulated waste inside, especially since this is a room for cooking. The frequency of such activities will depend on the activity of the operation of the sanitary device.
Dismantling debris removal
Cleaning the sink siphon with the removal of basic parts is the most effective way to eliminate blockage. For carrying out cleaning of any special tools it is not required. It is enough to cook only a container, an old toothbrush and some kind of rag.

First, you must provide free access to the hydraulic valve, removing unnecessary items. After that, unscrew the top nut and pull the device from the drain pipe. After disconnecting the product from the sink, it is necessary to unscrew the diverting element of the system.
Then the siphon disassembly begins directly, for which the lid located below is unscrewed. With the help of an old toothbrush, the inside surface is completely cleaned. Parts that have been cleaned are thoroughly rinsed with running water. Do not neglect rinsing the sealing ring.
When the cleaning process is completed, the fixture is set back according to the scheme above. After the work is recommended to include water to assess the quality of the activities carried out.
Preventive measures
To minimize the number of cleaning operations, it is recommended to follow simple rules of operation. It is necessary to conduct regular measures to combat fatty deposits, as well as reduce the amount of food waste entering the interior.
A metal or plastic mesh is used as a barrier for large particles. It usually overlaps the drain hole without any additional fastenings. After removal of wastewater from it should shake out the remnants of organic and inorganic origin.

As for body fat, they are easily removed with the help of available tools. First, half a glass of soda is poured inside, after which the same amount of vinegar is added. Wash off with hot water. This cleaning should be done once a week.
In conclusion
The above information gives a complete picture of the siphon, which allows you to arrange a hydraulic valve directly in front of sanitary appliances to protect against odors from the sewer system into the room.
Additional information is reflected in the video in this article.