However, engineering firms rarely stick to default symbols. Client standards (e.g., Shell DEP, Bechtel, or Fluor standards) require specific visual representations:
Ensure the geometry is drawn around the 0,0,0 origin point. The origin acts as the insertion point where the pipe centerline connects.
stands for Symbol Key . It is a unique, short text string assigned to every parametric component (fittings, valves, flanges, and equipment) within a Plant 3D spec.
Scroll to the section containing the valve listings. autocad plant 3d iso symbol skey
Open your project folder and navigate to: Isometric \ [Your Style Name] \ IsoSymbolStyles.dwg . Open this drawing file.
It matches VTFL to the AutoCAD block name IsoValveBallFlanged .
Locate the property and enter the macro type (e.g., ELBOW ). Save the catalog and update your spec. Method B: Directly in the 3D Model (For Quick Fixes) Select the component in your 3D model layout. Open the standard AutoCAD Properties Palette ( Ctrl + 1 ). Scroll down to the Plant 3D Property section. Manually type your SKEY into the Iso Symbol SKEY field. 5. Step-by-Step: How to Create a Custom Iso Symbol and SKEY However, engineering firms rarely stick to default symbols
[VALVE_SYMBOL] Shape= CIRCLE Diameter= 20 FillColor= RED Label= "VALVE" LabelFont= Arial LabelSize= 12
: Indicate the end connections or specific subtype (e.g., FL for Flanged, SW for Socket Weld, SC for Screwed/Threaded).
To create or customize an ISO symbol in AutoCAD Plant 3D, you need to edit the skey file associated with the symbol. Here are the general steps: stands for Symbol Key
The engine extracts the geometry for the Valve block from IsoSymbols.dwg , scales it, and places it on your isometric drawing sheet. 4. Step-by-Step: How to Create a Custom Iso Symbol
Next, you must tell the program to link your new block to a specific SKEY.
Add . Use standard AutoCAD points or lines to define where the pipe connects to the symbol. Label these points using specific identifiers if required by your style config (typically CP1 , CP2 , etc.). Save and close IsoSymbols.dwg . Step 3: Update the IsoSymbolStyle.xml Map