Stainless steel tees are mainly used for the connection between the main pipeline and branch pipes. They are divided into equal diameter tees and reducing tees. Literally, the equal diameter tees are three tees with the same caliber, and the reducing tees are Tee with different diameters of main pipe and branch pipe.

As the name implies, the tee has three openings, namely one inlet and two outlets, or two inlets and one outlet, which are chemical pipe fittings. T-shaped and y-shaped equal-diameter nozzles and variable-diameter nozzles are used at the confluence of three same or different pipes. The main function is to change the direction of the fluid.

Stainless steel tees are pipe fittings used for branch pipes to manufacture seamless steel pipe tees. In the process of making tees, the commonly used process is bulging. In this process, a special hydraulic press is used to inject liquid into the tube blank with the same diameter as the tee. The tube blank is simultaneously extruded by the two horizontal side cylinders of the hydraulic press. After the tube is extruded, the volume of the tube blank becomes smaller and the internal liquid When the pressure required for the expansion of the stainless steel three-way branch pipe is reached, the metal material flows along the cavity under the dual action of the hydraulic pressure in the side cylinder and the tube billet, thereby expanding the branch pipe.

The production process of stainless steel tee

Hydraulic expansion

Need to use a professional hydraulic press. First add liquid to the tube blank and start the hydraulic press. The two horizontal side rods will push in the middle, and the volume of the extruded tube blank will become smaller. The liquid inside will also increase the pressure. The tube blank that reaches a certain pressure will move along the mold. It flows inside and expands from the branch pipe to form a stainless steel tee. This production process is called cold drawn tee by many people.

Hot press forming

It is necessary to use a tube blank with a diameter larger than the tee as the raw material, compress it to the required tee diameter, open a hole in the branch, and then fire it to increase the temperature, and then put it into the mold, and put the punching die for the stretched branch into the mold. In the tube blank, the tube blank is radially compressed by a hydraulic press, and the stainless steel tee can be formed by stretching the die. The difference between the two is that the hot-pressed branch pipe is compensated by the radial movement of the tube blank, which some people call the radial compensation process.

Three-way structure

The metal tee has a main pipe and a branch pipe perpendicular to the main pipe and connected to the main pipe on one side of the main pipe. A valve is provided at the corner where the main outlet direction intersects with the branch pipe outlet direction. The valve is provided with a circular valve disc and the tube cavity is closed. It is sealed with the inner wall of the tube cavity, which simplifies the pipeline layout, saves the number of pipeline components, and is convenient to operate, which is convenient for pipeline branch maintenance and segmented supply of each branch. The utility model not only has the function of a traditional three-way pipe, but also functions as a double-station valve, that is to say, the output of the main pipe and the branch pipe can be closed at will, the other is in a stable working state, and the output flow ratio of the main pipe and the branch pipe can be arbitrary Change, this can be achieved by adjusting the angle of the valve plate in the lumen.

Use of Tee

The three links can be used to change the direction of the fluid, and can also be used in water pipelines, oil pipelines and various liquid chemical material pipelines, mainly used in medicine, water conservancy (water-saving irrigation, water supply and drainage), energy (oil, natural gas, nuclear energy) ) And construction works. The above is some knowledge about the tee, I hope this content can help you better understand the tee fitting.

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