12" Flange - 600 PSI - Long Weld Neck

Nominal Size12"
Pressure Class600 PSI
Connection TypeLong Weld Neck
Bore12"
Outer Diameter (OD)22"
Flange Thickness2.62"
Barrel OD15.75"
Wall Thickness1.88"
Bolt Circle Diameter19.25"
Number of Bolt Holes20
Bolt Hole Size1-3/8"
Ring Groove (RF) Depth15"
Relief Diameter15.75"
Relief Length1.5"
RTJ Length23"
Stud Bolt Size1-1/4"
Weight (Base @ null")533 lbs
Weight per Inch37 lbs/in

About This Specification

This page contains dimension and weight data for 12" 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