Patented 4-bolt clamp connector system engineered to outperform heavy, multi-bolted ANSI / ASME flanges.
The ultimate space and weight-saving alternative to standard flanged connections. CofferLok utilizes a 2-segment or 3-segment external clamp design requiring only four bolts total, resulting in up to 80% weight reduction and significantly reduced bolt make-up time offshore.
Explore Clamp ConnectorsHigh-strength mechanical connector hubs designed to weld directly to piping ends. The hubs features our signature internal taper-seal pocket, facilitating smooth alignment and a rigid fit when clamped together.
Explore Weld HubsSecure, pressure-rated blind closures designed for rapid access to vessel nozzles, piping manifolds, or line terminations. Combined with the 4-bolt clamp, they provide quick removal without complex hot work.
Explore Blind HubsThe core of CofferLok sealing integrity. Our proprietary metal-to-metal taper seal rings are pressure-energized, utilizing system pressure to self-tighten. Because they do not rely on elastomers, they are completely reusable and highly resistant to high-pressure, high-temperature (HPHT) cycles.
Explore Metal Seal RingsStandard ANSI/API flanges are heavy, bulky, and require a high number of bolts. CofferLok cuts this down entirely, featuring a lightweight footprint and just four bolts per joint. This reduces installation and maintenance times for platform topsides, hull piping spools, and subsea tie-ins.
Designed and qualified in compliance with major standards, including NORSOK L-005, the CofferLok system uses reusable metal-to-metal seals that maintain joint integrity throughout years of high vibration and thermal cycling.
Learn how the CofferLok clamp connector system can make your installation faster and completely leak-free.
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