Check valve for sewerage 110: types and installation of the structure

No one is immune from accidents in. Therefore, each owner prefers to protect himself from such a scourge in his own way. For these purposes, special devices have been invented. Of course, it is very difficult to create a do-it-yourself non-return valve for a drain system, so you can purchase ready-made factory options.

The device is designed to prevent runoff from the sewerage system from flowing back to plumbing fixtures. This phenomenon occurs due to stagnation in the pipes and the ingress of debris and other particles. Typically, such situations are simply associated with the aging of communications. Carefully study all the photos in the article.

Basically, installations that prevent the house from flooding from the sewer are often purchased taking into account the material from which the structure is made. It can be pvc pipeline, metal and other options. Consider several popular types that are successfully used at home:


Plumbing take note! When distributing sewer pipes from appliances, the speed of movement of effluents must be observed. This can be achieved by maintaining the desired slope of the pipeline. If this is not done, the wastewater will move slowly, and the structures, in turn, will become clogged.

How to protect yourself from a flood? Check valve installation method

There are two ways to ensure that your home is safe from sewage flooding: first, you can put several locking devices with a diameter of 50 mm on all drains; secondly, you can limit yourself to one large 110 mm valve and mount it in the main pipe coming out of the toilet.

It is important to note that if you equip the valve in the private sector, then the second method will be ideal, but for apartment buildings, it is better to use the first option. Often, the device of locking structures has a PVC working mechanism. Despite this, the device is quite durable, but requires regular cleaning. Next, let's talk about the process of its installation in the main sewer pipeline. The photo shows the main stages of repair.


Note! Installing a check valve on the sewer must be functional. In addition to protection against flooding, the device must perform the functions of preventing unpleasant odors from entering the house, and somewhat isolate noise from drains.

The need for an air valve

Instead of the usual outboard fixture for sewerage systems with a diameter of 100 units, a reverse one can also be used. But, keep in mind that this type of device is able to function only in places where the air temperature is always positive. Look at the photo, what such equipment looks like.

The installation is attached depending on whether there is a floor drain. If available, the structure is placed 35 cm above the floor. If there is no such device, the air mechanism is placed higher, depending on the highest drain of plumbing fixtures. Such a part is mounted mainly in a free section of the pipeline or in a specially installed adapter near the toilet.