2-1/2" Flange - 150 PSI - Long Weld Neck

Nominal Size2-1/2"
Pressure Class150 PSI
Connection TypeLong Weld Neck
Bore2.5"
Outer Diameter (OD)7"
Flange Thickness0.81"
Barrel OD3.56"
Wall Thickness0.53"
Bolt Circle Diameter5.5"
Number of Bolt Holes4
Bolt Hole Size3/4"
Ring Groove (RF) Depth4.12"
Relief Diameter3.56"
Relief Length0.88"
Stud Bolt Size5/8"
Weight (Base @ 9")19 lbs
Weight per Inch1.4 lbs/in

About This Specification

This page contains dimension and weight data for 2-1/2" 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