Anchor Flanges
Anchor flanges are important elements in many thrust-control systems, especially those protecting pipeline pumping stations. Welded into the line and encased in concrete, they immobilize the pipe at predetermined locations and transfer built-up stresses to external structures. For example, in cross-county pipelines end forces of considerable magnitude are generated by internal pressure and temperature changes. A 24″ O.D. x 0.594″ wall pipe in a pipeline operating at 1100 psi and subjected to a 90° rise in metal temperature, for example, will develop total thrust of 1,000,000 lbs. Unless these forces are properly controlled, they can damage pumps, valves and other close-tolerance equipment. Anchor Flanges may be used to secure subsea piping and risers to platform structures.
ANCHOR FLANGE FEATURES:
- Prevents movement of the pipe due to thermal changes and external forces
- Normally embedded in a concrete thrust block to spread to load over a large surface
- Designed for the unique operating conditions of the pipeline
- Standard flange material is A105 Carbon Steel
- Stainless or high-yield stress flanges can be designed and manufactured
- Manufactured in compliance with WeldFit’s ISO 9001:2008 certified quality program