Applies To
	Product(s):	AutoPIPE,
	Version(s):	2004, XM, & V8i
	Environment:	N/A
	Area:	Modeling
	Subarea:
	Original Author:	Bentley Technical Support Group

Problem:

How to model Orifice type piping components?

Answer:

In general AutoPIPE is not a flow analysis program like PlantFLOW. Consequently AutoPIPE is only concerned with providing a stress analysis based on the model geometry, weight, support / restraining system, piping connections, and general loads applied.

Orifice type components are generally sandwiched between a set of flanges. Therefore, modeling an orifice component must account for weight, attachment to the piping system, assumed rigidity, and assumed thermal expansion.

Example: How to model a typical orifice plate between 2 flanges

Because the orifice plate is not adding a moment arm, thermal expansion is going to be minimal, assumed to be rigid, etc...

Suggest modeling 2 flanges with the correct connection so SIF's are correctly calculated, Then select the node point and Insert> Xtra Data> added weight enter the weight of the orifice plate (ex. 5 lbs). Done.

See following AutoPIPE model example:

 

 

See Also

Bentley AutoPIPE

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

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