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Help > Contents> Contents Tab> Modeling Approaches> Modeling Approaches>This help has been provided in order to give users ideas for modeling typical piping arrangements. The steps shown in each example should not be taken as the only method available to create models. In addition, the intent of the examples is to present ways to create adequate models of specific piping components for analytic purposes. Anchors Bends Cuts Flexible Joints Frames Hangers Nozzles Pipes Reducers Rotating Equipment Supports Tees Valves Vessels
(Photo from: JD controls and Samson)
How do I analyze for a air high pressure relief valve?
Answer: See AutoPIPE/Help/Workbook/Example Systems/ Water Hammer and simply change the fluid to steam or NS (non standard).
When inserting a valve with flanged end connections on both side, the wrong weight is automatically applied to the flanges. example: add a GateF Class 300 valve and tick the insert flanges option the flanges by default are the same weight as the valve.
Answer:
This is a known issue and has been logged under CAE-TR-10614 Using insert flange on both ends copies the weight of valve to flange and was fixed in AutoPIPE V8i 09.06.00.07 and higher.
How do I model a Fire hose valve?
There are a few different varieties of Fire Hose Valves: angle type, in-line type, Wye type, etc.. When modeling a valve in AutoPIPE, the most important information is valve configuration, and end type connections.
In the background, a valve is just a graphical image of rigid pipe with known weight and the correct SIF values for end connections. Therefore, model the geometric shape of the custom valve with piping components, add Rigid Pipe Properties as needed over this piping, insert added weight as needed, and insert the correct SIF values for all en connections.
Note:
1. Caution, try not to double count weight from all components used in your custom valve (i.e. rigid properties, valve components, reducer components, added weight, etc.).
2. Model the Wye using the same general modeling approach as see in 3-Valve procedure above.
3. AutoPIPE's SIF calculations are all based on Piping codes. Locate a source to help calculate the correct SIF values for Fire hose connections to be used in AutoPIPE. Suggest contacting the valve manufacture for assistance.
Model Different Types of PIPING Components
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