Class 125 (standard) iron flanges are manufactured to American National Standard ASME B16.1 except as noted. Class 125 iron flanges are available in both black painted and galvanized.
Companion Flange, 3 in Nominal, 3/4 in Thickness, 4 Bolt Holes, Thread Connection, 7-1/2 in OD, 200 psi Pressure, 125 lb Pressure Class, SCH 40/STD Schedule, -20 to 150 deg F, 4-1/4 in Diameter Hub, 1-3/16 in Length Through Hub, Cast Iron, Black Oxide, Domestic/Import: Domestic
| Bolt Circle Diameter | : | 6.00 in |
| Bolt Hole Size | : | 3/4 in |
| Bolt Size | : | 5/8 in |
| Domestic/Import | : | Domestic |
| End Style | : | FNPT |
| Finish | : | Black |
| Hub Diameter | : | 4.25 in |
| Item Type | : | Companion Flange |
| Length Through Hub | : | 1.12 in |
| Material | : | Cast Iron |
| Method Of Manufacture | : | Cast |
| Nominal/Diameter Size | : | 3 in |
| Number of Bolt Holes | : | 4 |
| Outside Diameter | : | 7.50 in |
| Pressure Class | : | 125 lb |
| Pressure Rating | : | 200 psi |
| Temperature Rating | : | -20 to 150 deg f |
| Thickness | : | 0.88 in |
| Type | : | Raised Face |