Product Description 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. 2. Hot press forming Cold-drawn tee Cold-drawn tee Tee hot
pressing is to flatten the pipe blank larger than the diameter of
the tee to the size of the tee diameter, and make a hole in the
part of the stretched branch pipe; The pipe blank is heated, put
into the forming die, and the die of the stretched branch pipe is
loaded into the pipe blank; Under the action of pressure, the pipe
blank is compressed radially, and in the process of radial
compression, the metal flows in the direction of the branch pipe
and forms a branch pipe under the stretching of the die. The whole
process is formed by the radial compression of the pipe blank and
the stretching process of the branch pipe part. Unlike hydraulic
expansion tees, the metal of hot-pressed tee branch pipes is
compensated by the radial movement of the pipe blank, so it is also
called a radial compensation process. Due to the use of pressed
tees after heating, the tonnage of equipment required for material
forming is reduced. The hot-pressed tee has wide adaptability to
the material and is suitable for materials of low carbon steel,
alloy steel and stainless steel; In particular, tees with large
diameters and thick walls are usually formed in this way. Divided
by material Carbon steel, cast steel, alloy steel, stainless steel,
copper, aluminum alloy, plastic, argon asphalt, PVC, etc. Divided
by production method Topping, pressing, forging, casting, etc.
Divided by manufacturing standards National standard, electric
standard, chemical standard, water standard, American standard,
German standard, Japanese standard, Russian standard, etc., as
follows: GB/T12459-2017, ASME B16.9, SH3408, SH3409-96, SH3410-96,
HG/T21635, DL/T 695, SY/T 0510, DIN 2615. Product nameEqual
diameter tee Re-diameter tee Oblique
tee Size1/2"- 24" seamlessWall thicknessSCH5,SCH10S, SCH10, SCH20, SCH30, STD, SCH40,XS, SCH60, SCH80, SCH100, SCH120, SCH140,SCH160, XXS, SGP, LG,StandardANSIB16.9,
ASME B16.28;DIN 2605, DIN 2615, DIN2616,DIN2617;GOST 17375;GOST
17378;JIS2311ApplicationChemical industry, petroleum industry, construction industry, power industry, gas industry, shipbuilding ,domestic installationPressurePN6,10,16,25,40,MaterialCarbon steel ,stainless steel ,alloy steel EN 10216-2 (P235GH,P265GH) EN10222-2(P245GH,P280GH) NF A49-213 (TU42C,TU48C) Low Alloy Steel : ASTM A-420(WPL6) ASTM A-234(WP11,WP22,WP5) ASTM A860(A860WPHY52) Stainless Steel: ASTMA403M (WP304,WP304L,WP304H,
WP316,WP316L,WP321,WP321H,WP347,WP347H) EN10216-5(X2CrNiN18-10(1.4311),X5CrNi18-10(1.4301),X5CrNiMo17-12-2(1.4401),X2CrNiMo17-12-2(1.4404)
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