Welding Tee

Related Topics

1 - branch, 2 - neck, 3 - header pipe







Element name. If checked then it shown in 3D view

Get properties from matching pipe

Automatically get header wall thickness, material, Wc factor and other parameters from matching pipe

Calculate weight automatically

If selected, tee weight is calculated automatically as total volume of two header and branch cylinders

Header length, L

Tee header length. Used for more accurate tee weight calculation (see "weight")

Crotch height, Hb

Crotch height

Tee height, H

Tee height form header axis to neck end. Tee height = D/2 + Hb


Material from the materials database


Tee weight (with flanges) without insulation and product. Value set in standards is used, without taking into account the overload factor. Product and insulation weight with corresponding overload factors is calculated automatically based on adjoining pipes

Longitudinal Weld Joint Efficiency Factor, E

Longitudinal weld joint efficiency factor, E. More...

Use notes 6,9,10

Should be checked if number of displacement cycles exceeds 200

Meet D1, Note 10 a,c,d,e,f

Manufacturing technology

For ASME B31.1, ASME B31.3, DL/T 5366-2014 seamless pipe will always use Wl=1.0. For electric-welded pipe Wl will be specified from database. More...

When using  GOST 32388-2013, pipe physical properties are taken from different materials databases depending on pipe type (seamless/welded).

Flanges on tee header

ASME B31J Note 7 requirement

0 - No flanges

1 - One flange (on the one end of tee header)

2 - Two flanges (on both ends of tee header)

Nominal header wall thickness, tn

Header wall thickness. START-PROF use this wall thickness to calculate SIF, flexibility factors, Z

Mill tolerance

Mill tolerance at the time of production. More...

Corrosion allowance

Corrosion and wear allowance (working mill tolerance) for wall thickness. More...

Crotch thickness, Tc (Sb)

Crotch wall thickness

Crotch radius, rx (r)

Crotch radius. If rx=0, then rx=do/2 is used. do is outer diameter of the branch


This is the tee object model that you see in START-PROF:

And this is the real tee model, that is used inside the software. The header and branch pipes have a different wall thickness than the connected pipes. The special flexible springs are added to model the header (2) or branch (1) flexibility if ASME B31J is used. The rigid element always used to remove the "dummy" flexibility of the branch element (3)

To insert an element, select the desired node and use the menu option:

Insert > Tee > Welding Tee

To view properties of an existing element: