Types and uses - Overview + Video

Types and uses - Overview + Video Today, ready-made elements are used for the installation of sewage in a private house, with the help of which it is much easier to mount a system of the desired configuration and any degree of difficulty.

For turning the pipe at a certain angle, the market offers special plastic drainage bends.

Let's consider in more detail what they are, their types and differences, installation methods.

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Application and purpose

Types and uses - Overview + Video PVC bends are indispensable when arranging the turns of the sewer pipe at a given angle. They are used for the installation of systems for removal and drainage of dirty water in residential and office buildings.

The inside of the plastic connectors is smooth enough to reduce the likelihood of blockages during operation. In addition, they are virtually silent - fluid moves through them without sound.

For their manufacture, they take material that is not afraid of aggressive detergents and hot water. Plastic drainage bends can be 50 and 110 mm (internal diameter).

For angles, the default values ​​are 87, 45 and 30 degrees.

By combining a sewer outlet with a half-outlet, you can rotate 90, 75, 60, 45 and 30 degrees. However, especially sharp bends can provoke frequent blockages. For non-standard configurations, a 110 mm diameter elbow is used with an outlet from a smaller pipe diameter.

Types of bends

Regardless of the manufacturer, all sewer bends comply with accepted standards. Thanks to this, it is much easier to design sewage systems, purchase its individual components and connect them into a working system.

Corner elements can be of different models: they differ in design features and cost

Types and uses - Overview + Video Polyethylene

For their manufacture, black material is used. The connection is carried out using couplings or butt joints.

Couplings are equipped with a special spiral during the factory production: it is heated by a welding machine for a tight connection.

For butt joint, the ends of the branch and the pipe are heated and joined until the final solidification of the material.

Types and uses - Overview + Video PVC elbows

They are the most common.

They are connected by putting on a socket on a smooth pipe.

Their advantage is the absence of the need for special equipment, as well as a higher speed of installation of the entire system.

Structural elements for indoor use (indoors) are gray, and for outdoor (drainage in a private building) they are painted brown.

Remember that these two varieties cannot be combined into one system. Elements of the same type must be used.

Otherwise, long and high-quality operation of the sewer system is not guaranteed.In some cases, special adapters are included in the circuit.


They have smooth ends and sockets for joining together.

Types and uses - Overview + Video

They can only be used in combination with pipes made of similar material. The main purpose of the products is to drain wastewater and groundwater.

They can pass water at a speed of up to 7 meters per second.

Types and uses - Overview + Video Bends for corrugated pipes

These elements have sealing on each side rings, and are connected by means of couplings.

The outer part of the element at the bend has a smaller diameter.

Used for joining different pipes using sealing collars.

Vavin Elbows

This is a separately patented system, which is a special kind.

On the outside of the corrugated element, there is a triangular recess serving as a lock.

Types and uses - Overview + Video

These products are made of high quality material that can withstand high pressure. Such products are guaranteed to last up to 50 years.

Types and uses - Overview + Video Magnum elbows

Can have 90 and 45 degree bend angles. The main distinguishing feature is that they do not provide for rounding, so they are fraught with blockages.

For this reason, these connecting elements are almost never used for the installation of sewerage systems.

Installation of the sewerage branch

As noted above, most often PVC branches are used for this. The explanation is simple - their financial availability and ease of installation.

Docking is carried out using seals, which are often already placed inside the pipe. Alternatively, the rubber ring complete with the corner piece is located in a specially made recess in front of the direct connection point.

There is, of course, an alternative way, using glue, but it is more difficult to implement, and therefore not very common. If the connection is adhesive, then no rubber seals are required.

It is often necessary to connect pipes made of different materials. Then it is necessary to use special plumbing sealants and sealing cuffs. The connection is tight and reliable enough.

Sealing of pipe joints

Types and uses - Overview + Video The reliability of the system and its operation largely depends from the tightness of the corner joints. Therefore, when carrying out the installation yourself, you must pay special attention to these particular elements.

When laying drainage pipes for underground drainage, when arranging the sewage system of a private house, the joints should be even more carefully sealed. Otherwise, the costs of repairing leaks can be very significant.

Pipes and branch connections are sealed with special sealants containing many different components.

They can be divided into:

  • neutral compounds, which are more expensive,
  • cheap acidic compounds, which should not be used when working with cast iron and metal pipes.

The composition of the preparation is indicated on its packaging.

Even when joining PVC elbows on rubber seals, it is recommended to additionally treat with a sealant, which will provide the connection with better reliability. If cast iron pipes are used to equip the sewage system, then it is imperative to use one or another sealant to process the joints.

Cast iron is never perfectly smooth, so current compounds are needed to join it.

The best solution in this case is liquid silicone.

Basic rules for installing pipes for groundwater drainage and sewerage

In private houses, gravity sewer systems are most often arranged. Therefore, when installing pipes , they need to be given a slope, and its angle depends on their diameter.

  • If it is 5 cm, then the minimum angle should be 3 cm per linear meter.
  • If the pipe has a diameter of 10 cm, then the slope decreases to 2 cm.

As the next elements are connected, the diameter of the pipes approaching the riser may increase. Toilets should be located closest to the riser, preferably not more than one meter from it.

Types and uses - Overview + Video For connection of risers and pipes , oblique tees are used: in case of blockage, each the riser must be equipped with a revision.

It is also advisable to equip horizontal drainage pipes with the possibility of cleaning after each next turn.

In a private building, the installation of a sewage system provides for the presence of an aeration valve or a drain pipe in the system.

If polypropylene pipes are used, their sockets must be directed against the drain. Cracks, chips and other pipe defects are not allowed.

Excessive joints and twists should be avoided as these are potential areas for leaks and blockages.

A professional sewerage system in a private home often provides a level of comfort and aesthetics that cannot be achieved in a large apartment building.

( 1 grade, average 5 of 5 )


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