3-1/2" Flange - 600 PSI - Long Weld Neck
| Nominal Size | 3-1/2" |
| Pressure Class | 600 PSI |
| Connection Type | Long Weld Neck |
| Bore | 3.5" |
| Outer Diameter (OD) | 9" |
| Flange Thickness | 1.38" |
| Barrel OD | 5.25" |
| Wall Thickness | 0.88" |
| Bolt Circle Diameter | 7.25" |
| Number of Bolt Holes | 8 |
| Bolt Hole Size | 1" |
| Ring Groove (RF) Depth | 5.5" |
| Relief Diameter | 5.25" |
| Relief Length | 1.12" |
| RTJ Length | 3.4" |
| Stud Bolt Size | 7/8" |
| Weight (Base @ null") | 57 lbs |
| Weight per Inch | 5 lbs/in |
About This Specification
This page contains dimension and weight data for 3-1/2" ASME B16.5 flanges at 600 PSI pressure class. The Long Weld Neck (LWN) connection type is specified herein.
Data Source: FCI Forged Components Catalog 2020 | ASME B16.5-2020 Standard