This Python script is designed to automate the creation of 3D models for flanges compliant with the B16.5 standard, commonly used in piping systems. The script provides engineers and designers with a reliable tool to generate accurate and customizable flange shapes for integration into CAD software. Users can specify essential parameters such as nominal pipe size (NPS), pressure rating, material type, and flange type (e.g., weld neck, slip-on, blind). The script uses these inputs to calculate dimensions, including the outer diameter, bolt circle, number and size of bolt holes, and thickness, following the guidelines outlined in B16.5.

The script leverages libraries like NumPy for dimensional calculations and Matplotlib or CAD-specific APIs for visualizations. It also incorporates error-checking features to validate input ranges and ensure compatibility with the selected flange type and pressure class. This tool simplifies flange modeling, reduces manual errors, and improves design efficiency, making it ideal for use in piping design projects, stress analysis, and manufacturing workflows. Its modular structure allows easy integration into larger engineering pipelines or software systems.