TOBO STEEL GROUP CHINA
TOBO ALLOY GROUP TOBO Alloy Group is a mature, steady and energetic high-tech company, specializing in manufacture of high-temperature alloys and corrosion resistant alloys, such as Hastelloy, Haynes,
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Butt-Welding Fittings Super Duplex Stainless Steel Reducing Tee S32750 5*4 ASME B16.9
The tee is a pipe fittings and pipe connection. Also called pipe fittings tee or tee pipe fittings,
tee joints, used in the main pipeline to branch pipe.
The tee has three openings, that is, one import and two exits; Or two inlets, one outlet of a
chemical pipe fittings, there are T-shaped and Y-shaped, there are equal diameter pipe mouths,
there are also different diameter pipe mouths, used for the convergence of three identical or
different pipelines. The main function of the tee is to change the direction of the fluid.
Divided by pipe diameter size
The nozzle ends of the equal-diameter tees are all the same size;
The main pipe size of the reducer tee is the same, while the pipe size of the branch pipe is
smaller than the pipe size of the main pipe.
Divided by process
1. Hydraulic expansion
The hydraulic expansion of the tee is a forming process in which the branch pipe is compensated
by the axial direction of the metal material. The process is to use a special hydraulic press, and
the three-way diameter equal to the pipe blank injected liquid, through the hydraulic press two
horizontal side cylinders synchronous alignment movement to extrude the pipe blank, the volume
of the pipe blank after being squeezed becomes smaller, the liquid in the pipe blank with the
volume of the pipe blank becomes smaller and the pressure rises, when the pressure required
for the expansion of the tee branch pipe is reached, the metal material flows along the mold
cavity under the dual action of the side cylinder and the liquid pressure in the pipe blank and
expands the branch pipe.
The hydraulic expansion process of the tee can be formed at one time, and the production
efficiency is high; The main and shoulder wall thickness of the tee has increased.
Due to the large tonnage of equipment required by the hydraulic expansion process of seamless
tee, it is mainly used in the manufacture of standard wall thickness tees smaller than DN400
in China. Its applicable forming materials are low carbon steel, low alloy steel, stainless steel
with relatively low cold work hardening tendency, including some non-ferrous metal materials,
such as copper, aluminum, titanium, etc.
