A transition tee is a connecting element that is used in the installation of various communications and performs the function of connecting to the main (main) pipe of the auxiliary branch, which differs in diameter. To date, there are many varieties of this device. This connecting part is made of various materials, including modern ones, which are easy to install and have a fairly long service life.
Transition tees are made of different types of materials, as well as pipes
Content
Features of these connectors
Previously, most pipeline structures were mounted in steel or cast iron, which greatly complicated the installation, repair or replacement of communications. Today, bulky metal structures are gradually becoming a thing of the past. This is due to the emergence of new polymeric materials that are distinguished by good technical characteristics, as well as easy to install and maintain. However, the use of steel and other metal products is still relevant, and they are installed everywhere.
Helpful information! It is worth noting that plastic tees can without any problems make transitions to steel and cast iron pipes.
Installing or replacing this connector product is not a complicated undertaking. Such an action can be performed even by a person who does not have any special building knowledge and skills.
Varieties
First of all, all connecting parts of this type are classified by the material from which they are made. Consider the basic materials from which these devices are made:
- steel;
- cast iron (mainly gray);
- various polymers.
Steel tees are used in pipelines made of steel
Such a fitting as a tee is used for joining polymer, metal-plastic and metal pipes in various communications or is used as a transition from one material to another. These transitions are quite reliable and maintain good sealing performance.
According to the type of connection, the following varieties of these details are distinguished:
- having an internal thread;
- having an external thread;
- products with combined thread (internal and external);
- details that are attached to the pipes by welding (welded tees).
In addition, it is worth noting that through this product, you can connect to the drainage pipe or to the feed pipe.
Based on the design features, the following options for these connecting elements can be distinguished:
- equal bore tee;
- adapter tee;
- combined products.
The straight-through welded fitting has three sides that differ in the same sectional performance. A transition tee for pipes is a device through which transitions are made between pipes with different cross-sectional indicators (in such a product, one side of the three differs in cross-sectional index). Combined devices differ in that they are equipped with internal and external threads.As a rule, combined products have two internal and one external thread or vice versa.
An equal bore tee is a product with all sides having the same cross section.
Steel Model Classification
Steel models are used to connect individual pipeline elements. Such products have three connecting branches, through which the main pipe is joined with the auxiliary pipes. Steel products of this type are articulated with pipes by welding. It should be noted that the working medium at the junction changes its direction at an angle of 90 °. This is a hallmark of steel products.
The following types of steel products are distinguished:
- stamped seamless;
- stamp welded;
- welded;
- point.
According to their design features, these products are divided into:
- adapter tee;
- straight.
Note! And also these fittings can be equidistant and transitional, depending on the ratio of the indicators of the neck and body sections. The transitions made by steel products are distinguished by their high strength and good tightness.
To join pipes in steel communications, the following elements are used in addition to tees: bends, transitions. The most common connecting element in steel communication is a seamless transition tee. Steel products can be used in such systems:
- heating communications;
- systems transporting hot and cold water;
- steam systems.
Seamless tees are used in heating systems, hot water or steam
In addition, steel fittings of this type are used for gas pipelines. Models made of low alloy or carbon steel are mounted on a gas pipe. Gas tees can be stamped and welded according to the manufacturing method. A gas device of this type in its design may be:
- electric welded;
- reduction;
- with elongated side pipe;
- a gas pipe tee having three sides.
In addition, it is worth noting that there is a special type of these fittings, which is used mainly in plumbing communications - fitting tee collet. Such elements are used for one-way branching from the main flow. A collet is a clamping ring that is secured with a clamping nut. The collet design allows for quick installation of the connecting element.
Flange tee
Flange tee - a product that is made mainly of steel and is used as shut-off and control valves. The main function of such a device is to differentiate the flows of the transported substance in the system into two directions.
Tee with flange connection is used mainly in large highways
A distinctive feature of such models is ease of installation. Docking with the pipe occurs through special connecting elements - flanges, which, in turn, are bolted. The flange tee is not only easy to mount, but also quite simple to dismantle.
Among flanged connecting parts there is also a flange adapter tee, which is necessary for the transition from one diameter to another.
In addition, it is worth noting that the flange product has another important advantage - high tightness of the connection. The tightness indicators are maintained even at high pressure in the communication. In addition, the flange tee can be used repeatedly, which is a definite plus.
Brass tee
Brass tee is a connecting fitting made of brass alloy. Brass models are connected to pipes by means of a thread. Brass tee allows you to connect three pipes to the trunk line.Tee bends, as a rule, have different landing angles (45 and 90 °).
Consider the main advantages of brass models:
- long operational period;
- excellent tightness indicators;
- fairly high strength;
- ease of installation;
- universality.
Brass fittings are connected to pipes by thread
One of the main advantages of the brass model is the ability to join pipes having the same or different cross-sectional indicators (brass adapter tee). In addition, it is worth noting that there are brass models coated with a special protective layer of nickel. Such a brass tee is more resistant to the harmful effects of corrosion, and also has a more presentable appearance.
Ventilation tee
The tee for air ventilation is a necessary element, since through it there is a branching of the ventilation line. There are several varieties of this product:
- rectangular;
- round;
- combined;
And also these products can be:
- straight;
- trouser-like.
Helpful information! The choice of this connecting device depends primarily on the cross section of the ventilation pipes.
If pipes with different cross-sectional shapes are used for the installation of the ventilation pipeline, you will need to use a combined part. The main function of the ventilation tee is to differentiate the air flow into two parts or, conversely, to combine two air flows into one. Rod-shaped devices are characterized by higher technical characteristics, which affects the resistance exerted on the air flow. And also it is worth noting that all models of these products are divided into:
- equal bores;
- transient.
As already mentioned above, equidistant products are used to connect pipes of the same diameter, and transition products - in order to make transitions between pipes with different cross-sectional indicators.
Today, there are many varieties of this connecting part. They are operated in water supply systems, gas pipelines, ventilation systems, etc. Choosing the right tee is a serious event for a particular communication. In order to obtain the correct model for this connecting element, it is recommended to consult with a specialist in this field.
