1. What is a Swivel Flange?

A Swivel Flange is a specialized type of flange designed to rotate 360 degrees during installation, allowing precise alignment of pipes and components without introducing stress to the system. This rotational capability is especially useful in complex piping networks or confined spaces, where traditional flanges may require additional fittings or forceful adjustments.

Thanks to its swivel feature, installation becomes faster and safer, reducing the risk of misalignment, leakage, or mechanical damage. Swivel flanges are widely applied in oil & gas, petrochemical, and offshore projects, where high reliability and ease of maintenance are critical. Their flexibility not only simplifies construction but also minimizes long-term operational issues.

2. What is a NORSOK L005 Compact Flange?

The NORSOK L005 Compact Flange is engineered according to the strict Norwegian offshore standards, combining high pressure resistance with a compact, lightweight design. Unlike conventional flanges, it occupies less space while maintaining the same mechanical strength, making it ideal for offshore platforms, subsea pipelines, and other high-demand installations.

Its compact form allows engineers to optimize piping layouts, especially in confined modules or tight spaces, without compromising safety or performance. Additionally, the flange is highly resistant to corrosion and extreme pressure conditions, ensuring long-term reliability even in harsh offshore environments. In practice, this means lower material costs, easier handling, and reduced installation time—all crucial advantages in large-scale oil and gas projects.

3. Norsok L005 Compact Swivels for Offshore Pipelines

We supply compact swivel flanges Norsok L005 through Shell Engineering Ltd to Saipem S.p.A. for their offshore engineering work on the Irpa Field Project in the Norwegian Sea, developed by Equinor.

This project involves the installation of approximately 80 km of subsea pipeline at a depth of around 1,350 meters, demanding exceptional precision and reliability from all connection components. Our compact swivel flanges, designed and manufactured in our own facility under strict quality control, are fully compliant with NORSOK L-005 standards. Their combination of high strength, compact design, and rotational flexibility ensures accurate alignment and secure sealing performance under extreme pressure conditions.