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Add Custom Pipe Data to Your Database

Posted in AFT Fathom, AFT Arrow, AFT Titan, AFT Impulse, AFT Mercury

If you are like most AFT software users, you probably already use the pipe material database regularly whenever you select one of the eight, built-in pipe materials from within a Pipe Specifications window. Once a material is selected, sizes, types or schedules and roughness values appropriate for the material are automatically made available. What you may not know is how easy it is to add to this selection.

After opening AFT Arrow, AFT Fathom, AFT Impulse or AFT Mercury, select Pipe Material Database from the Database menu. On the left, you'll see the eight standard materials and, as you expand them, you'll see the sizes available for each material and, expanding a size, will display the types or schedules available for that size. Information is organized in the Pipe Material Database as Material, Size, Type (MST). This structure lets you readily add information at the appropriate level.

Let's say you have steel pipe of 4" nominal size but of a custom wall thickness or schedule. To add this to your database, expand Steel, select 4" then click on the New Type button. A window will appear where you can enter the information for this new type of 4" steel pipe (i.e. ID, wall thickness, name).

Another common example would be large diameter fabricated steel pipe made from rolled plate.Nominal sizes, diameters and wall thicknesses are custom, but the thermophysical properties (density, thermal conductivity) can still use the built-in values for steel, so that you want to add these sizes and wall thicknesses to the Steel category of material. Simply select Steel then click on the New Size button. The window that appears will let you specify a nominal size, diameters and wall thickness. If you wanted to create various wall thicknesses for this custom size pipe, you would select the Size then click the New Type button.

Finally, if you want to create a whole new material category, select Pipe Materials then click the New Material button. You'll specify a description or name for the material and a beginning size and wall thickness. Optionally, if you want to do heat transfer with this pipe material, you'll also specify a density and thermal conductivity. Adding sizes and wall thickness to this new material category is the same as described above for any of the built-in materials. Select the new material and click New Size or select a size within the new material and click New Type to add wall thicknesses to a previously created size.

Once you've created your new material, size or type, to use it is as easy as selecting it from within the Pipe Specifications window. You can, of course, specify a custom pipe without adding it to the Pipe Material Database, but if you're going to use it more than once, you might as well add it to your database since doing so will save time and help ensure the correct data is used in the future.

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