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Piping CAD Catalogs vs. Project Specifications: Geometry, Selection Rules, and Data Control
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How to Read Reducing Tee Sizes: Run, Branch, and CAD Catalog Mapping
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Flange Dimension Terminology: Bore, Bolt Circle, Face, Hub, and Thickness
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Piping CAD Level of Detail: Centerlines, Space Claims, and Fabrication Geometry
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P&ID Symbols vs. 3D Piping Models: Why Functional Diagrams and Physical Geometry Differ
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Grooved Pipe Joints in Piping CAD: Couplings, Grooves, Gaskets, and End Gaps
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Pipe Mill Tolerance in Design and CAD: Nominal Wall, Minimum Wall, and Model Geometry
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Valve Operator Types in Piping CAD: Handwheels, Gearboxes, Actuators, and Chainwheels
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NPS to DN Conversion Is a Mapping, Not a Measurement