Galvanized tee DU 15 (21,3х2,5) - a connecting element of pipelines (part of the pipeline structure) with three connecting ends, which is designed to fasten side pipe branches to the main line (in this case, the medium changes its direction at an angle of 90 °). Welded tees are used for the construction industrial pipelines and pipeline systems of thermal power plants and oil pipelines. They are usually made from carbon or low alloy steel grades.
Basic tech. characteristics of welded tees:
Design pressure: up to 4.0 MPa;
Outer diameter: from 325mm to 1620mm;
Temperature: up to + 425 degrees Celsius;
Materials: St3sp, 20, 09G2S.
Steel transitional seamless tees (GOST 17376-2001). They are made from steel of the following grades: 20, 09G2S, 12X18H10T, 10X17H13M2T, 15X5M, 13XFA, 20A, 20S.
Steel tees (OST 34-10-764-97, OST 36-24-77, series 5.903-13) transition welded. They are made of steel: 20, 09G2S, 17G1S, 12X18H10T, 08X18H10T.
Turned steel transition tees (GOST 17376-2001, GOST 22822-83). They are made of steel of the following grades: 20, 09G2S, 20YUCH, 15X5M, 12X1MF, 30XMA, 20X3MVF, 12X18H10T, 08X18H10T, 10X17H13M2T.
A galvanized tee is a part with which parts of the pipeline are fastened to change the direction of flow. The peculiarity of this type of rolled metal is that the metal surface is coated with a layer of zinc, which serves as protection against corrosion. Companies involved in laying communications that work in conditions of high humidity and temperature changes are advised to buy this particular type of fitting.
Types, characteristics, application
The material for the manufacture of a galvanized tee is carbon steel, which, when operating the pipeline in conditions of high humidity, can be exposed to corrosion. Zinc coating provides protection against the negative effects of the external environment.
Manufactured in accordance with the requirements of GOST, this rolled metal product has high strength and reliability. Its use to connect pressurized pipes guarantees tightness.
Structurally, the galvanized tee is produced in two models: transitional and equal. The first type is installed in the pipeline for the transition from one diameter to another - two nozzles have the same diameter, and the third has a hole of a different size. In a straight fitting, all three nozzles are the same.
According to the method of installation is divided into:
Welded;
Threaded.
For manufacturing, manufacturers use different technologies: stamping and welding. The process takes place on modern equipment. The product has a high quality category, it does not need additional processing before installation.
A tee is a type of fitting, a connecting part of a pipeline with three holes, which allows you to connect additional branches to the main pipe. Most often used in areas with a cold and temperate climate. Depending on the design, they are divided into transitional and equal passage. Tees are most often made of stainless steel. Such a part can be used on critical pipelines transporting oil, gas, etc. Corrosion resistance makes the stainless steel tee ideal for wet conditions.
The structure of the steel tee is a welded steel structure of a steel tee and three steel pipe fittings, which are covered with heat-insulating material using the pre-insulated pipe casting technology. Similarly to the steel base of the branch, a polyethylene sheath and a galvanized sheath are made for hydroprotection of a thermally insulated product. After the packing process, when a shell is put on the steel base and the coaxial structure of the product is made with the help of centralizers, the product is poured for pipeline systems.
For the production of steel tees, the following methods are used: hot stamping, hydraulic forging, manufacturing of welded tees. As a blank, seamless pipes or from an electric-welded pipe can be used by cutting a fitting.
To organize the production of tees, you need equipment for the production of tees, cutting machines for cutting blanks, as well as trimming machines. The process goes in several stages. First, a workpiece of the required length is cut off on cutting machines, from which a tee will subsequently be made. When the workpiece is ready, a tee is made from it using one of the above methods.
The most commonly used method is stamping from a single sheet, as the most economical. The hot stamping method is used only in large enterprises and it is possible to produce tees by this method with the benefit of the enterprise only in large quantities. The hydraulic forging option occupies an intermediate position.
Zinc coated steel tees are widely used in many types of technical and industrial piping systems, but they are not used in drinking water supply. In systems of technical purified hot andcold water use is allowed. In addition, galvanized steel tees are used in sewer systems, heating systems, pharmaceuticals, chemical, oil and gas industries. They can be installed in chemically aggressive environments, high humidity, in extreme temperature conditions: they can withstand pressure up to 10 MPa and work flawlessly at temperatures from -600 to +4500 degrees.
You can buy a Tee galvanized DU 15 (21,3х2,5) from us at the best price in Ukraine. A wide range of products allows us to quickly and efficiently fulfill any order, helping to complete any construction work on time.
