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Tube Sheet Generator

Generate tube sheet hole patterns for heat exchangers, preview the layout, and export DXF or STEP files directly from the browser.

Open utility

What it does​

  • Builds square or triangular pitch patterns inside a circular tube sheet
  • Shows a live 2D preview with optional pass partitions
  • Exports DXF for 2D layouts and STEP for 3D solids

Inputs you control​

  • Tube sheet diameter, thickness, and edge margin
  • Tube diameter, pitch, and layout pattern
  • Pass count, partition width, and orientation (visual guide)

Output notes​

  • DXF export includes the tube sheet outline and all tube holes.
  • STEP export runs on WebAssembly in the browser; large hole counts may take longer.

Assumptions & standards​

  • Standards basis: Geometric layout tool for square and triangular pitch patterns commonly used in heat exchanger fabrication; it does not implement a specific design code.
  • Key assumptions:
    • Nominal hole and pitch dimensions without drilling tolerances.
    • A flat, circular tube sheet with a uniform edge margin.
    • Pass partitions are a visual layout guide, not a hydraulic or mechanical design feature.
  • Limitations:
    • No tube sheet thickness, ligament stress, or tube-to-tubesheet joint calculations (e.g., per TEMA, ASME VIII, or EN 13445) are performed.
    • Tube count optimization for baffles, impingement plates, or shell-side clearances is not covered.
    • Thermal design and vibration analysis are out of scope.
  • ⚠️ The Tube Sheet Generator provides preliminary sizing support. Results must be verified by a qualified engineer against the governing code edition and the project specification before manufacturing or purchase.

Feedback​

Email or DM with the slug tube-sheet-generator so we can reproduce any issues.

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