Flange Data Tool ACCORDING TO ASME B 16.5

Our data tool will help you to check and select the right flanges.
Here is a quick overview of the dimensions according to ASME B 16.5 for the following types at a glance.


  • Welding neck flange
  • Lap joint flange
  • Blind flange
  • Ring type joint flange
  • RTJ ring size
  • RTJ dimension facing

Dimensions in mm

Outer diameter [AD]:
Blade thickness [T]:
Blade thickness (Left joint Flange) [T]:
Sealing surface [DF]:
Screw hole circle [LK]:
Number of holes:
Hole diameter [B]:
Pipe diameter [RD]:
Pipe wall thickness [WD]:
Average diameter [MD]:
Depth [TJ]:
Thickness [BJ]:
Radius [RJ]: