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Rules for the use of tees for plastic sewer pipes

Modern materials for sewerage in private homes make this task very easy to solve. Today's tees for pipes used for installation plastic sewer, maximally simplify the task of implementing any scheme-project of a drainage system in a private house of different heights.

And most importantly, the use of tees for plastic sewer pipes does not require the use of any complex tools or equipment.

The use of tees for plastic sewer pipes does not require the use of any complex tools or equipment.

Types of tees for plastic sewer pipes

In arrangement private sewer Three types of connecting tees are used, which perform their specific functions. What are these varieties?

1. Tee sewer PVC 90° or 87°. Such a dividing part is used to connect vertical risers to horizontally oriented sections of the sewer network.
2. PVC sewer tee at 45°. Plastic pipes can be fastened with such connecting elements when forming any horizontal branches.
3. PVC revision. This type of connection is a coupling with an additional third hole, which is screwed on with a special cover. The audit is used in order to be able to deal with blockages in one or another part of the sewer.

Types of tees for a fan pipe.

These three types of branches are quite enough for a comfortable arrangement of drainage in a private house. When forming a home sewerage scheme, it is very important to rely exclusively on this kind of distributing connections.

Tees differ in diameter pipe connection. All types of the parts mentioned have a standard set of diameters: 110, 160, 200, 250, 315 mm. On request, connections with a diameter of 400 and 500 mm are also made, however, such large diameters are not used in the arrangement of private houses. In addition, tees at 45°, 87° and 90° can combine elements with different diameters, which is very convenient when pipes of different diameters are used in the sewerage device to form different sections of it.

The design of the tees is very simple: the outlet part has the shape of an ordinary pipe, and the two inlet parts are equipped with special sockets, thanks to which there is a very convenient and tight connection with the ends of the pipes included in them. In addition, these sockets are equipped with special rubber rings that seal the connection, making it fully suitable for long-term use.

General rules for the use of pipe tees

Installation of sewerage using the considered tee connections is as simple as possible. You just need to follow a few simple rules:

1. For horizontal wiring, only 45-degree connectors are used. The use of perpendicular wiring with a high degree of probability will lead to clogging.
2. The spigot ends must always be directed to the higher, starting point of the sewer network. That is, the socket is always the entrance to the connecting element, and the pipe end is the exit.
3. Do not remove the sealing rubber rings or cut them yourself. If the end of the pipe does not fit freely into the socket with the appropriate diameter, you can lubricate the sealing gum with a simple soapy solution.
4. It is desirable, and sometimes mandatory, to fasten the joints of pipes with wiring to the walls with clamp holders-brackets.
5. Audits should be located in such places of the sewer network, to which there is free access. In a private house, such revision elements are usually not required much. It will be enough to install them in 2-3 places, evenly distributed along the entire length of the drainage system.

sewer fittings in moscow

Polypropylene sewer fittings presented in our online store of plumbing, are divided into two large groups - fittings for outdoor sewerage and fittings for internal sewerage. They are easy to distinguish from each other by appearance, more precisely, by color: fittings for external sewer networks are orange in color, and for internal ones they are gray. It is advisable to select sewer pipes and fittings of the same brand so that they are fully consistent with each other.

Polypropylene is one of the most suitable materials to create a sewer network, as it is resistant to various chemical influences, is not subject to rust and other negative impacts external environment. On the walls polypropylene sewer pipes and fittings do not create organic deposits that reduce the permeability of pipes. Besides polypropylene pipes have a much longer life than metal ones and are less prone to breakouts.

Unlike fittings intended for water supply and heating systems, sewer fittings are mounted without the use of additional tools, threads or soldering - pipes are simply inserted into them. This method of installation is called bell-shaped. The only additional material that is used during installation is a special lubricant or ordinary soap suds. The use of these tools will allow you to fit sewer pipes and fittings as tightly as possible to each other.

In addition to the usual polypropylene plumbing fittings varieties of pipeline elements - angles, crosses, plugs, couplings, tees - the group of sewer fittings includes specialized fittings, such as vacuum valves, check valves, umbrellas for internal sewerage, branch pipes, eccentric transitions, revisions, reductions.

At plastic pipes conductors have their own advantages.

With their installation, there are much less difficulties than with other materials.

Plastic can be assembled without using a welding machine.

And in terms of quality, such joints are in no way inferior to welded ones.

Every year, manufacturers produce more and more varieties of fittings designed specifically for this material. Thanks to such a detail as a tee for plastic pipes, people's lives are noticeably simplified.

For the manufacture of fittings, as well as the pipes themselves, different materials are used.

• Polyethylene
• Polypropylene
• metal-plastic
• PVC

It is better to choose a tee for plastic pipes from the same materials as the main line itself.

At the same time, the price of products from different materials different, even if the other characteristics are the same.

There are several ways to connect pipes with fittings.

• Crimping. Helps with the installation of copolymer type materials, metal plastic products. Or structures where a layer of metal is located next to other parts.
• Electric welding using a special apparatus. When working with products made of polyethylene.
• Diffusion soldering. Perfect solution for metal-plastic or polypropylene.

Product varieties

American

This is the indiscriminate type. It is needed in order to connect plumbing fixtures to the pipeline. A special cone with a sealing ring made of rubber or silicone provides additional tightness.

On the connected elements, each part in this part is separately fixed. Then they are tightened using a nut. which allows you to create reliable joints with maximum tightness.

These fittings are available in two varieties:

• Direct
• corner

Corners make it easier to create turns in highways. This does not create additional stress, tension.

In such designs, the thread is internal or external. Due to this, during the time there is no need for additional adapters.

Shut-off and control valves

There are two main types of shut-off and control valves:

• thermostatic valves
• Manual valves

The body of the structures is different:

• Polymeric. Helps organize soldering into the system.
• Metal. Supplied with threaded connections. Then, on one side of the valve, you can mount an American. Thanks to it, the structure will not have to be completely disassembled during dismantling.

The scope of taps depends on the degree of tightness that they possess. Depending on this, they are used for cold water supply, hot water supply or heat supply, gas supply.

Should only be used for intended purpose. They are not interchangeable.

About cross tees

Crosses with tees are a type of connecting elements that play a paramount role when a pipeline is formed. Thanks to these details, it is easier to arrange the merging of several routes with each other, or branching. Central taps are performed not only at right angles, but also at angles of 30-40 degrees.

Such fittings are connected by threading or soldering. There are modifications of the transitional type, where the construction passes from one type to another.

Varieties and differences of tees

Currently, tees are produced with different ones. Indeed, in the sewer, literally every parameter associated with the connection matters. Even the slightest errors in direction orientation have serious consequences.

Tees for PVC are:

• diversified
• Equal bore
• oblique
• Direct

The most popular variety is a straight tee for plastic water pipes. It is the most common in practice. The design includes part of the pipe along with the output at an angle of 90 degrees.

In inclined tees, a 30-55 degree outlet is formed. This makes it easier to connect the sewer at a certain slope.

This is the best for those who are interested in tie-in to the riser in apartment building. The remaining two groups differ from each other only in the diameters of the pipes with which they are connected.

An equal tee has the same diameter at all outlets.

But in the multi-pass model, they differ. For example, the diameter of the pipe can be 50 millimeters, and the diameter of the tee is 30. Ideal Solution for the sewer line.

Equal tees. Classification

This large group is divided into several others:

• Simple mortise, without additional reinforcements. Such parts are needed in systems where a minimum pressure of up to 2.5 MPa is maintained. If the pressure is higher, then pipes with a lower pressure must be used.
• With reinforcement. They are used where the pressure reaches 4 MPa. Then you can not do without reinforcement in the design. This variety also has its own subgroups of tees - there are models with overlays and saddles.

Equal bore tees are different depending on the manufacture.

• Stamping-welded. This method allows to achieve large diameter. The body and neck are first stamped separately. Only in the following stages, the parts are welded to each other.
• Stamped. Assume extrusion on presses as the main method of production. The transition from the body to the neck is very smooth, which increases strength.
• Welded. In this case, two parts of the pipe are welded to each other. The housing becomes a part that connects the two elements of the highway. The neck is connected to a branch in the pipeline. This is the most simple model, from an economic point of view.

For the manufacture of equal tees, carbon, low-alloy steel is more often used. They carry neutral liquids. For more aggressive carriers, stainless steel is already used.

What are transitional tees

They are divided into several types:

• With additional fastening. The body is fixed to the support using cast brackets. In which self-tapping screws are then inserted. Under crimp, or threaded connection ends are formed.
• With the presence of a threaded end, and a crimp nut.
• With press sleeve and compression nut.

For the manufacture of press sleeves, only stainless steel is taken. Seals are usually used polymeric. Brass is the main for those who are engaged in the manufacture of cases.

Taps with dies help with the design of threaded ends. When using such tees, the connection method is used both pressing and crimping. In the latter case, the so-called collet fitting is used. Crimping involves the use of a press fitting.

Application and varieties of plastic tees

Such tees are most often used in sewers. Here are a few of the most widely used:

• PVC revision. This is the name of couplings with additional third holes. They are screwed on with special caps. This solution facilitates the work with blockages in certain sections of the pipes.
• 45 degree sewer tee. Facilitates horizontal fastening of plastic pipes.
• 87 or 90 degrees. To connect vertical risers with pipes horizontally.

Tee diameter

This parameter is selected depending on what the connected pipes have. The standard indicators in this case are 315, 250, 200, 160 and 110 millimeters. Are being created individual orders if the diameter in the structure reaches 400-500 millimeters.

In some models, there are several parts at once with different diameters.

Specifications of welded tees

Most often, welded models are used to connect branches to the main part of the pipeline.

Thanks to the tees, it becomes easier to change the diameter of the pipes, doing it without sharp transitions.

Such structures are often used even in the Far North.

The starting materials for tees are often seamless pipes.

Externally, welded tees look like steel parts, consisting of three nozzles and the tee itself.

Branch pipes are covered heat-insulating material, to enhance environmental protection.

What to look for when choosing tees

First you need to understand what kind of tees are intended for. In some cases this is important, in others not so much.

There are other parameters that matter:

• Diameter of pipes requiring connection. It must match the characteristics of the branch pipe of the tees. It should be borne in mind that not only centimeters, but also inches are often used for measurement. This makes it easier to select threads, although it takes some time to convert one unit to another.
• Thread type. In tees, it is more often internal. And in some situations, you can not do without its external variety.
• Thread step. Inch thread- standard option. But sometimes a metric one is required, the depth and step of which are strictly defined.
• Permissible pressure. It is important that the tee is not the most weak point for the system. Tees must withstand the same pressure as the rest of the pipeline.
• Limit temperature, lower and upper.

The use of tees for sewer systems

To the starting point of the sewage system, it is worth directing the socket-bell ends. In this case, the end of the pipe becomes the exit, and the socket itself becomes the entrance.

O-rings must not be removed. It is better to lubricate them with suitable solutions if the movement is no longer free.

additional information

Steel tees, known for their strength, are widely used.

Equal bore steel varieties are most often used for modern pipelines.

They are operated where the loads are serious, but the condition working environment remains calm.

The conditions under which a tee can be used is largely determined by the method of production.

Over the years, it has been proven that cast, turned and stamped varieties are able to withstand the maximum load, regardless of operating conditions.

Even long time maintain extreme temperatures.

Steel tees, like other groups, are also divided into different fastening types. Threaded pipes are used where pipelines are small in size.

In overall and medium designs, preference is given to flange options. Welded fastening allows you to adjust the movement of the coolant along the main highways, which are subject to the most serious requirements.

For more information about bends, tees and plastic couplings, you can watch the video:

First of all, plastic pipelines are good because you need to mess with their installation and installation many times less than if you used metal products.

Where in working with steel you can not do without a welder and welding machine, plastic can be assembled by hand. Moreover, the quality of the connection will not only be no worse than welded, but sometimes even better.

Is this not an indicator of the effectiveness and benefits of using plastic pipes and fittings? With the growing popularity of plastic pipes, a whole group of manufacturers has formed, supplying the market with fittings of the most various types and forms. All of them are designed to make life easier for a person.

In this article we will talk about such an important fitting as a tee. We will analyze its varieties, scope and installation methods.

Article content

Properties of polymer fittings

To begin with, we outline the main directions of plastic products. Both the sphere of production of pipes and fittings for them are taken into account. After all, by and large, it's all the same thing.

The golden rule of plumbers says that the material of the fitting must clearly match the material of the pipe and nothing else. This applies to both metals and polymer products.

With metals, the matter is understandable - the constant contact of metal products that differ from each other in the formula sooner or later leads to the destruction or oxidation of the latter. What oxidizes faster does not matter, in any case, the tightness of the connection will remain at risk.

With plastic, things are different. It does not oxidize, but it does not have the same strength as steel or aluminum. Where one type of polymer succeeds, another will fail.

For example, polypropylene can withstand media temperatures up to + 90 degrees, while polyvinyl chloride has a working limit of +50 degrees. Let us boil water according to the system - it is not a fact that both materials will react in the same way.

In construction, for the production of pipes and fittings, they most often use:

• polypropylene;
• polyethylene (high or low pressure).

Each type of plastic affects the final properties of the pipe. So, polypropylene rightly takes first place in all respects. It is the most durable, reliable, works with a wide temperature range, does not age, goes well with reinforcement.

Pipes from it are great for internal systems water supply and heating.

Polyvinyl chloride or PVC is softer than polypropylene and cheaper. Withstands media temperatures up to + 50 degrees (but there are exceptions, depending on production process and various additives

We will focus on it in more detail. PVC is mainly used to form sewer pipes.

Polyethylene products - the cheapest, are divided into polyethylene high pressure(medium strength, good temperature regime) and low pressure (highest strength, poor temperature conditions). Both options are also used primarily for the manufacture of sewer pipes.

Appointment of tees

There are a huge number, and they all perform some of their tasks. Some connect pipes in a straight line, others allow you to assemble the pipeline at angles, with transitions to another plane, etc.

Without fittings, pipes would have to be bent by hand, joined by welding, in general, spending more time on this process than it deserves.

Tee for PVC pipes- a fitting, the benefits of which are difficult to overestimate. Its task is to.

Imagine that you have at home a wiring of sewer pipes suitable for a single riser. And it is necessary to bring another pipe to the riser, in a completely unexpected place. How to do it without a tee? Very difficult.

You have to crash into the pipe, use drills, etc. Not only is it not very convenient, but also the quality of the tie-in will suffer significantly. In fact, you form a potentially dangerous section of the pipe.

Another thing is the installation of a tee. A tee is a fitting in the form of a part of a pipe, with a side outlet. Mount the tee in the riser at the desired level, and all you have to do is simply connect to its outlet.

If your sewer clogs with enviable regularity, then somewhere the builders did not guess with the angle of inclination, rotation and tie-in into the pipe.

Accordingly, PVC tees are distinguished:

• straight;
• oblique;
• equal passage;
• multipass.

A straight tee is the most common and common. Consists of a pipe section and a 90 degree outlet.

Inclined forms an outlet from 30 to 55 degrees, that is, it allows you to connect the sewer at an angle. For tapping into a riser apartment building – the best way. The last two groups differ only from each other. And the differences in them relate to the diameters of the pipes.

An equal tee has the same diameter on all holes. That is, the diameter of the target pipe and the outlet of the tee is equal to the same number.

The multipass sample has different diameters. In it, for example, the pipe diameter will be 50 mm, and the diameter of the tee outlet will be 30 mm. Multi-pass models are ideal for installation on a sewer riser. After all, the cross section of the riser pipe, as a rule, is much more section side sewer pipe from the apartment.

Types of PVC tees (video)

Installation

Tees are installed, as we have already noted, mainly in the process of assembling the sewer pipe. Any other scenario implies an extra waste of energy and resources, which is not good.

Mount tees in two ways:

1. Socket connections;
2. With glue.

Socket mounting is standard practice for sewer products. And PVC tees are no exception. A flare is the outermost expanded part of a pipe or fitting. One of the edges of the product is formed with an increased diameter. The difference is about 2-3 cm, but this is enough.

Inside the socket, rubber seals are glued at the factory. Mounting such fittings is the same as assembling a designer. The pipe is simply inserted into the socket of the previous one, and so on along the chain. If necessary, the connection is additionally coated with sealants and.

Working with glue is a little more difficult, but more interesting. Builders also often choose socket types of sewer pipe connections, only as the main PVC products.

They coat the edges of the pipe with it, then stick it into the socket and leave it for a while. In a few hours, the glue will set and harden, and the pipes will no longer be disassembled.

The last described method is called cold welding, because chemical composition The adhesive first melts the plastic it comes into contact with, and then, when the reaction slows down, it provokes solidification. The plastic itself after processing becomes monolithic, as if it were connected by welding.