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Subsea EngineeringSubsea Structural Repair

Subsea Mechanical Clamp Repair for Pipelines and Structures

What We Do: Mechanical Clamp Installation

KCC installs mechanical clamps for the repair of leaking or structurally compromised subsea pipelines, outfalls, and structural connections. Mechanical clamps provide a rapid, reliable repair solution that does not require hot work and can be installed in the wet by commercial divers without interrupting flow in live systems.

Clamp design is carried out by a specialist structural engineer to suit the pipe diameter, wall thickness, operating pressure, and material. KCC's divers prepare the pipe surface, position the clamp halves, and torque all fasteners to the specified value under diver supervision. Leak-off testing confirms the repair before the system is returned to service.

Compliance: Clamp design and installation follows DNV-ST-F101 (Submarine Pipeline Systems) and ASME PCC-2 (Repair of Pressure Equipment and Piping). Diving operations comply with IMCA D 045 and HSE Diving at Work Regulations 1997.

What We Do

  • Defect assessment and clamp design brief preparation
  • Clamp procurement and factory acceptance testing
  • Pipe surface preparation by commercial divers
  • Clamp positioning, alignment, and bolt torquing
  • Seal and gasket integrity verification
  • Leak-off testing and system return to service
  • Post-repair inspection and documentation
  • Emergency 24/7 clamp repair response available

Why It Matters

A leaking subsea pipeline or outfall can cause environmental damage and service disruption within hours. Mechanical clamps allow KCC to restore integrity quickly — often within a single dive shift — without the programme delays associated with cut-and-weld repairs.

Related Services: Subsea Structural Repair

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IMCA ADCI HSE HKCP

IMCA · ADCI · HSE · HKCP Compliant

All diving operations conducted to IMCA, ADCI, HSE & HKCP standards

Ready to Start Your Next Marine Project?

Contact our specialist team to discuss your project requirements. Let our specialists help you plan and execute your next project.

Ready to Start Your Next Marine Project?

Contact our specialist team to discuss your project requirements. Let our specialists help you plan and execute your next project.