✔ Global supplier network
✔ Wide range of material grades
✔ Standard and custom-engineered solutions
A swivel flange is a specialised flange assembly consisting of a forged welding hub and a separate rotating flange ring. Unlike conventional flanges, the rotating ring allows the bolt holes to be aligned independently from the pipe, making installation faster and easier. At PipingMarket.eu, swivel flanges are available in a wide range of dimensions, pressure ratings and material grades.
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How do swivel flanges work?
The unique feature of swivel flanges is the rotating outer ring. After the welding hub has been installed, the flange ring can rotate freely, allowing the bolt holes to be aligned accurately with the mating flange without rotating the seamless pipeline itself. This construction simplifies assembly, particularly for large-diameter pipelines or installations where access is restricted. It also helps reduce installation time while improving alignment during construction and maintenance activities.
Materials and specifications
Swivel flanges can be manufactured from carbon steel, stainless steel, duplex, super duplex, nickel alloys and copper nickel, depending on the operating environment. They are available in a range of nominal pipe sizes, pressure classes and facing configurations to meet project specifications. For offshore projects, material selection is particularly important because components are often exposed to seawater, corrosive process media and demanding operating conditions.
Typical applications
Swivel flanges are primarily used where bolt alignment would otherwise be difficult or time-consuming. Typical applications of this type of flange include:
- offshore platforms;
- subsea pipeline systems;
- FPSOs;
- loading buoys;
- marine piping systems;
- oil and gas facilities;
- petrochemical installations.
Specify your flange requirements
Whether you require standard dimensions or a custom-engineered solution, submit your technical specifications for your swivel flanges through our online RFQ platform. We will prepare a quotation tailored to your project requirements and help you source the appropriate piping products through our international supplier network. We support both standard and project-specific applications.
