Use case
Confirm flange bolt pattern details before field install.
NPS and pressure class lookup with bolt-circle and hole details.
Pipe Layout Workbench
Fast ASME B16.5 flange dimensions for common sizes and classes.
Calculator
NPS and pressure class lookup with bolt-circle and hole details.
Fast ASME B16.5 flange dimensions for common sizes and classes.
Use case
Confirm flange bolt pattern details before field install.
NPS and pressure class lookup with bolt-circle and hole details.
Trusted inputs
ASME B16.5 reference snapshot
Range notes
Select imperial for inches or metric for millimeters.
Current table supports common NPS 2/4/6/8 with classes 150/300.