Anchor Flanges

Anchor Flanges | Pipeline Anchor Flanges | Axial Restraint & Pipe Support | Custom Engineered

Elite Anchor Flanges are heavy-duty piping components designed to provide axial restraint and anchoring within pipeline and piping systems. They transfer longitudinal loads from the pipe into concrete anchor blocks, structural supports or other engineered restraint systems, helping control pipeline movement caused by pressure, thermal expansion, contraction and operating loads.

Anchor Flanges are commonly used in oil & gas pipelines, water transmission systems, offshore facilities, terminals, process piping and buried pipeline systems.

Technical Specifications

Parameter Elite Specification
Manufacturer Elite
Product Type Anchor Flange / Pipeline Anchor Flange
Configuration Integral Anchor Flange / Welded Anchor Ring
Nominal Size NPS 2–60 and larger, as engineered
Pressure Rating ASME Class 150–2500 or project specified
Flange Dimensions ASME B16.5 / ASME B16.47, where applicable
Pipeline Configuration MSS SP-44, where applicable
Connection Butt-Weld / Full-Penetration Weld
Flange Facing RF / FF / RTJ, where applicable
Anchor Design Axial Load Restraint
Bore Matched to pipe ID / wall thickness
Anchor Ring Integral forged or fabricated restraint ring
Construction Forged, fabricated or machined construction
Wall Thickness According to pipe and project design
Surface Finish Standard or customer specified
Coating As specified for service
Heat Treatment As required by material specification
Inspection Visual, dimensional, material and NDE as specified
Documentation MTC, EN 10204 3.1/3.2, COC and inspection reports
Note: Anchor Flanges are typically engineered for the specific pipeline load and restraint arrangement. Flange dimensions may follow applicable ASME/MSS standards, while the anchor geometry, thickness and load capacity are determined by the project design.

Manufacturing & Quality

Elite manufactures Anchor Flanges using controlled forging, fabrication and precision machining processes. Critical dimensions and weld preparations are controlled according to approved drawings and applicable standards. For engineered anchor applications, the manufacturing design can be coordinated with the customer’s pipeline stress analysis, axial load calculations, anchor block design and piping layout.
Inspection Availability
Visual Inspection Standard
Dimensional Inspection Standard
Material Verification Standard
PMI On request / project specified
UT On request
MT / PT On request
Weld Inspection As specified
Radiography As specified
Hardness Testing As specified
Chemical & Mechanical Testing Per material specification
Third-Party Inspection Available
EN 10204 3.1 / 3.2 Available

Applicable Standards

  • ASME B16.5 — Pipe Flanges and Flanged Fittings, where applicable
  • ASME B16.47 — Large Diameter Steel Flanges, where applicable
  • MSS SP-44 — Steel Pipeline Flanges, where applicable
  • ASTM material specifications
  • ASME Section II, where specified
  • ASME B31.3 — Process Piping, where applicable
  • ASME B31.4 — Pipeline Transportation Systems for Liquids and Other Liquids, where applicable
  • ASME B31.8 — Gas Transmission and Distribution Piping Systems, where applicable
  • NACE MR0175 / ISO 15156, where applicable
  • Customer drawings and project specifications

Materials

Carbon Steel

ASTM A105/A105N, ASTM A181, ASTM A350 LF2/LF3 and ASTM A694 F42, F46, F52, F60 and F65.

Stainless Steel

ASTM A182 F304/F304L, F316/F316L, F321/F321H, F347/F347H, F310/F310S, F317 and F904L.

Duplex & Super Duplex

ASTM A182 F51, F53 and F55.

Alloy Steel

ASTM A182 F1, F5, F9, F11, F12, F22, F91 and F92.

Nickel Alloys

Nickel 200/201, Monel 400/K500, Inconel 600/601/625/800/825, Hastelloy C276 and Alloy 20.

Copper-Nickel Alloys

UNS C70600 and C71500, including 90/10 and 70/30 Cu-Ni alloys.

Material selection is based on operating pressure, temperature, process fluid, corrosion conditions, mechanical requirements, pipeline loads and applicable project specifications.

Anchor Flange Configuration

Integral Anchor Flange

A heavy-duty forged or machined flange incorporating an enlarged anchor section designed to transfer axial pipeline loads into the supporting structure.

Welded Anchor Ring

A heavy anchor ring welded around the pipe and engineered to transfer axial and longitudinal loads to the surrounding support or anchor structure.

Buried Pipeline Anchor Flange

Designed for underground pipeline applications where the anchor transfers pipeline forces into concrete thrust blocks or engineered restraint structures.

Above-Ground Anchor Flange

Used at pipeline transitions, equipment connections, stations and structural supports where controlled axial movement is required.

Design Features

  • Provides positive axial pipeline restraint
  • Transfers longitudinal forces to an anchor structure
  • Controls pipe movement caused by pressure and temperature
  • Suitable for buried and above-ground pipelines
  • Heavy-duty construction for high axial loads
  • Bore can be matched to pipe dimensions
  • Custom anchor OD and thickness
  • RF, FF and RTJ flange configurations where applicable
  • Compatible with project-specific pipeline coating systems
  • Can be engineered for calculated axial, bending and thermal loads
  • Suitable for concrete anchor and structural support arrangements

Custom Engineering

Elite can manufacture Anchor Flanges according to customer drawings, pipeline calculations and project specifications, including:

  • Large-diameter pipeline applications
  • Custom anchor OD
  • Custom anchor thickness
  • High axial-load designs
  • Special bore requirements
  • Pipe wall thickness matching
  • Concrete anchor block interfaces
  • Structural support interfaces
  • Special welding requirements
  • Sour-service materials
  • Special coating requirements
  • Pipeline stress-analysis requirements
  • Custom NDE and inspection plans

Product Types

  • Anchor Flanges
  • Pipeline Anchor Flanges
  • Integral Anchor Flanges
  • Welded Anchor Rings
  • Pipe Anchor Flanges
  • Buried Pipeline Anchors
  • Above-Ground Pipeline Anchors
  • Station Anchor Flanges
  • Heavy-Duty Anchor Flanges
  • Custom Engineered Anchor Flanges

Applications

Elite Anchor Flanges are suitable for:

  • Oil & Gas Pipelines
  • Natural Gas Pipelines
  • Crude Oil Pipelines
  • Water Transmission Pipelines
  • Slurry Pipelines
  • Offshore Pipelines
  • Pipeline Terminals
  • Pump Stations
  • Compressor Stations
  • Valve Stations
  • Refineries
  • Petrochemical Plants
  • Process Piping
  • Buried Pipeline Systems

Ordering Information

Please provide:

Pipe Size + Pipe OD/Wall Thickness + Pressure Class + Anchor Flange Type + Material + Facing + Required Axial Load + Bending Load + Coating + Inspection + Quantity

Example:

24″ Elite Pipeline Anchor Flange, ASTM A694 F65, RF, bore to suit 24″ × 0.500″ pipe, custom anchor ring, designed for specified axial pipeline load, 3LPE coating, NDE and EN 10204 3.1.

Item $ 0
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