Explanation - Intergraph Smart Materials - 10.2 - Training - Hexagon

Intergraph Smart Materials Classic Lab Tutorials (10.2)

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Intergraph Smart Materials
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Smart Materials/Smart Reference Data Version
10.2

In an enterprise or project piping environment, thousands of piping components are available. Countless variations of pipes, fittings, bolts, gaskets, valves, and other components exist.

A piping class defines a subset of components to be used for specific media, pressure, and temperature conditions. Since only a correct pipe class can guarantee accurate operation of the plant, the pipe class is a very important document and the downstream processes must follow the rules created in the pipe class.

In the design process of a plant, a process flow diagram (PFD) or flowsheet is first created. In a PFD, the material flows and material properties (physical conditions, pressure, temperature, and other data) are shown. The PFD has no relation to the components that will be used for construction and normally does not contain any pipe class data.

A piping & instrumentation diagram/drawing (P&ID) is a diagram in the process industry that shows the piping of the process flow diagram together with the installed equipment and instrumentation. Based on the process diagram, the P&ID is created, adding more detail to describe the process. The media flows and their conditions are described in more detail. The P&ID specifies the temperature/pressure relation and the diameters as well as the selection of pipe classes for all lines. Based on the pipe class definition, components, such as valves and reducers, are preselected and an initial material estimation is produced. In the downstream process of piping design, the pipe class and the P&ID are used as basic documents for further engineering.

A pipe class generally contains the following information:

Pipe class header information

  • Pipe class code and description

  • Allowed media for the pipe class

  • Allowed pressure/temperature ranges

  • General material

  • Allowed diameter (Diameter table)

  • Allowed schedules per diameter (Schedule Table)

  • Corrosion allowance

  • Allowed branches (Branch table)

  • Allowed gasket type and form

  • Special notes

  • Release index and revision index

Pipe class item information

  • Definition of components including commodity code and size range for allowed component types

Pipe class ident information

  • The pipe class information ultimately defines a unique ident for each size and specification item. Such an ident defined in a Smart Reference Data pipe class is called a "spec item ident."

Pipe classes include components and general information created in Smart Reference Data. You can create the pipe classes either in the product group (corporate standards) or at the project level. Pipe classes can be copied from the product group or other projects and can be modified for project use. Once created in the current project, they are independent from other projects and from the product group.

Pipe classes in Smart Reference Data/Materials are called specifications; this functionality can also be used for other disciplines besides piping.

You can find workflow diagrams showing the specification creation in Smart Reference Data in the chapter below.