Please note: TTMA and ANSI flanges are NOT interchangeable - please see table below.
TTMA Flange Sizing
Nominal Pipe Size | Flange Outer Diameter (OD) | Diameter of Bolt Circle | Number of Bolts |
---|---|---|---|
3" | 5-5/8" | 4-7/8" | 8 |
4" | 6-5/8" | 5-7/8" | 8 |
6" | 8-7/8" | 8-1/8" | 12 |