Welding Tee

Related Topics

1 - branch pipe, 2 - nozzle, 3 - run pipe

Properties

 

 

Property

Description

Name

Element identifier. When checked, displays in 3D view.

Get properties from matching pipe

Automatically imports run pipe wall thickness, material, Wc factor, and other parameters from connected pipe.

Calculate weight automatically

When enabled, calculates tee weight as total volume of run and branch cylinders.

Run length, L

Length of tee run section. Used for precise weight calculation (see "weight").

Crotch height, Hb

Height from run OD to branch end.

Tee height, H

Total height from run centerline to branch end. H = D/2 + Hb

Material

Material from materials database.

Weight

Tee weight including flanges, excluding insulation and fluid. Standard value used without overload factor. Fluid and insulation weights with overload factors calculated from adjacent pipes.

Longitudinal Weld Joint Efficiency Factor, E

Longitudinal weld joint efficiency factor. More...

Use notes 6,9,10

Enable for systems exceeding 200 displacement cycles.

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

Manufacturing technology

For ASME B31.1, ASME B31.3, DL/T 5366-2014, seamless pipes use Wl=1.0. Electric-welded pipes use Wl from database. More...

For GOST 32388-2013, pipe properties are sourced from different materials databases based on pipe type (seamless or welded).

Flanges on tee run

ASME B31J Note 7 requirement:

0 - No flanges

1 - One flange (single run end)

2 - Two flanges (both run ends)

Nominal run wall thickness, tn

Run wall thickness. Used by PASS/START-PROF for SIF, flexibility factors, and section modulus calculations.

Mill tolerance

Manufacturing wall thickness tolerance. More...

Corrosion allowance

Additional wall thickness for corrosion and wear. More...

Crotch thickness, Tc (Sb)

Reinforcement zone thickness.

Crotch radius, rx (r)

Reinforcement zone radius. Defaults to rx=do/2 if rx=0, where do is branch outer diameter.

Design Factor, Df

Design factor per ASME NM.1 Table 2-3.2.2-2.

Design Factor, DFt

Design factor for test conditions. Default: DFt=1.

Refresh SIF and k using FEA

See Nozzle-FEM Integration.

SIF

See Nozzle-FEM Integration.

 

PASS/START-PROF tee object model:

Internal software model: Run and branch pipes have different wall thicknesses than connected pipes. Flexible springs model run (2) or branch (1) flexibility per ASME B31J. Rigid element (3) eliminates branch element dummy flexibility.

To insert element, select target node and use:

Insert > Tee > Welding Tee

To view element properties: