SAR Engineering Works
Engineering Tools/Pipe Tools

Pipe Layout Workbench

Flange Dimensions Lookup

Fast ASME B16.5 flange dimensions for common sizes and classes.

Flange Dimensions Lookup

Fast ASME B16.5 flange dimensions for common sizes and classes.

pipe toolsStable

Input console

Tuned defaults are preloaded. Edit only the dimensions you know; results refresh automatically when the inputs are valid.

About this calculator

Use case

Confirm flange bolt pattern details before field install.

NPS and pressure class lookup with bolt-circle and hole details.

Range notes

Select imperial for inches or metric for millimeters.

Current table supports common NPS 2/4/6/8 with classes 150/300.

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