3-1/2" Flange - 150 PSI - Long Weld Neck
| Nominal Size | 3-1/2" |
| Pressure Class | 150 PSI |
| Connection Type | Long Weld Neck |
| Bore | 3.5" |
| Outer Diameter (OD) | 8.5" |
| Flange Thickness | 0.88" |
| Barrel OD | 4.81" |
| Wall Thickness | 0.66" |
| Bolt Circle Diameter | 7" |
| Number of Bolt Holes | 8 |
| Bolt Hole Size | 3/4" |
| Ring Groove (RF) Depth | 5.5" |
| Relief Diameter | 4.81" |
| Relief Length | 0.88" |
| RTJ Length | 4" |
| Stud Bolt Size | 5/8" |
| Weight (Base @ 9") | 31 lbs |
| Weight per Inch | 2.4 lbs/in |
About This Specification
This page contains dimension and weight data for 3-1/2" ASME B16.5 flanges at 150 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