3" Flange - 400 PSI - Hub Blank

Nominal Size3"
Pressure Class400 PSI
Connection TypeHub Blank
Bore2.9"
Outer Diameter (OD)8.25"
Flange Thickness5"
Barrel OD5.38"
Wall Thickness1.24"
Bolt Circle Diameter6.62"
Number of Bolt Holes8
Bolt Hole Size7/8"
Ring Groove (RF) Depth5"
Relief Diameter4.62"
Relief Length3/4"
RTJ Length36"
Weight (Base @ null")4.6 lbs
Weight per Inch104 lbs/in

About This Specification

This page contains dimension and weight data for 3" ASME B16.5 flanges at 400 PSI pressure class. The Hub Blank (HB) connection type is specified herein.

Data Source: FCI Forged Components Catalog 2020 | ASME B16.5-2020 Standard