Anchor Flange

QS Flange: Xiamen Anchor Flange

ANSI B16.5 anchor flange, 1/2 to 56 inch and 150LB to 2500LB classes, FF or RF, in carbon, stainless, alloy and duplex steel for securing pipeline loads.

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One-Minute Overview

Welded anchor flange that transfers pipeline loads into concrete or steel supports.
ANSI B16.5 dimensions across 1/2 to 56 inch, pressure classes 150LB to 2500LB.
FF and RF faces, in carbon, stainless, alloy and duplex steel grades.
Common at riser bases, block valve stations and restrained line sections.

An anchor flange is welded around the pipe and built into a foundation or support frame so axial and bending loads from the line pass into the structure instead of into adjacent joints. This ANSI B16.5 series covers sizes from 1/2 to 56 inch and pressure classes from 150LB to 2500LB, with flat face or raised face options to match the mating flange.

Name: Anchor Flange
Size: 1/2"-56"
Pressure: 150#-2500#
Flange Face: FF, RF
Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Standard: ANSI B16.5

The flange body can be produced in carbon steel, stainless steel, alloy steel or duplex steel to match the pipe metallurgy. Specify the face type to agree with the mating flange gasket, and place anchors where thermal expansion and support reactions have been considered. Anchor flanges are widely used on riser bases, at block valve stations and along restrained pipeline sections in oil, gas and petrochemical service.

FAQ

Q1. How does an anchor flange actually take the load off the line?

The flange is welded around the pipe and built into a foundation or support frame, so axial and bending loads from the line pass into the structure instead of hammering the adjacent joints. That is exactly why anchor flanges show up at riser bases, block valve stations and restrained line sections.

Q2. How do I choose the right face type for my anchor flange?

Match it to the mating flange and its gasket: the series offers both flat face (FF) and raised face (RF). Specify the face type to agree with the gasket arrangement on the flange it bolts to, and the rest of the selection — size from 1/2 to 56 inch, class from 150LB to 2500LB — follows the line design.

Q3. One anchor flange series for every job — really?

Quite close. Sizes run from 1/2 to 56 inch and pressure classes from 150LB to 2500LB, and the body can be produced in carbon steel, stainless steel, alloy steel or duplex steel to match the pipe metallurgy. The idea is that one dimensioning standard, ANSI B16.5, covers the whole line instead of a mix of patterns.

Q4. How long will production take?

Standard sizes are typically ready within 30 days, and in-stock items ship immediately. Larger or custom orders get a confirmed date per order, because the schedule depends on quantity, material, the bolt pattern you specify, and how busy production is at the moment you order.

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