Replacing heavy multi-bolt flanges with high-strength mechanical clamp assemblies.
Conventional flanges require up to 24 bolts that must be carefully torqued in sequence. CofferLok reduces this to just four bolts total. Tightening these four bolts draws the external clamp segments together, applying uniform radial force to seal the internal hubs with high-pressure reliability.
By eliminating the heavy, wide flange profile and high bolt count, CofferLok clamps cut overall connector weight by up to 80%. This massive reduction significantly lowers structural loads on pipe racks, topside structures, and marine vessels.
With only four bolts, installation and turnaround times are reduced by up to 75%. This is especially valuable in restricted space offshore platforms, subsea environments where diver/ROV time is costly, and critical refinery processing units.
CofferLok clamps are built in two or three segments depending on pipe diameter. The high-tensile clamp segments encase the weld hubs completely, providing excellent resistance to external bending moments and tensile loads.
CofferLok clamp assemblies utilize high-quality forged steel, designed to withstand deepwater subsea pressure, extreme topside vibration, and highly corrosive process fluids.
Qualified in compliance with international standards such as ASME Sec VIII, API 6A, and NORSOK L-005, CofferLok is the first choice for operators who need speed, weight savings, and absolute sealing integrity.
Contact our engineering specialists to design CofferLok clamp connectors into your system.
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