SEAWING is a global
EPC contractor delivering
advanced marine and
offshore solutions with a
strong focus on Single
Point Mooring (SPM)
systems.

Integrated Mooring Solutions

Innovation Made in Amsterdam
We deliver SPMs with uncompromising quality, driven by cutting-edge engineering expertise and precision craftsmanship in the Netherlands, meticulously tailored to exceed our clients’ most demanding requirements

Full-Scope Expertise
Seawing design, engineer, and deliver the entire mooring and offloading system — from seabed to surface. Our turnkey scope includes the design and installation of PLEM, subsea pipelines, floating and submarine hoses, and all associated components.

From Commissioning to First Tanker Loading Operations
Seawing goes beyond the installation. We execute, test and commission the entire mooring infrastructure – and remain on-site to support the first tanker loading operation, ensuring smooth system start-up and transfer of operation readiness. This approach reduces risk and guarantees a performance proven handover.

Advanced Technology

State-of-the-art Conception & Design
Seawing specialize in complex offshore terminal applications, ensuring structural integrity, hydrodynamic stability, and operational continuity across all phases. Our systems are engineered for long-term performance under variable load conditions and demanding environmental profiles. Our solutions are fit-for-purpose, offshore standards & class rules compliant, and future-ready.

Innovation – Shaping the future
Seawing R&D concept studies address the safe transfer of alternative cargoes such as ammonia and LPG via SPMs, incorporating:

• Enhanced material selection for low thermal transmittance and corrosion resistance


• Structural & mechanical specific redesign


• Refrigeration cycle and valve system for vapor return


• Fail-safe coupling and disconnect systems


• Redundant shutdown protocols


• Safety operational procedures and purging scenarios

These developments respond to the higher toxicity and flammability profiles of ammonia and LPG compared to conventional crude, requiring a fundamental shift in SPM design parameters.

Main Technical Components:

• 1 - Fluid Swivel (Fitted with three row roller bearing & seals replaceable in-situ)


• 2 - Valves (Centerwell & Turntable) – Butterfly or Ball Valves as per Client’s requirements
  


• 3 - Expansion Joint
  


• 4 - Piping in Centerwell (with Subsea Hose Connection)
  


• 5 - Outboard Piping (with Floating Hose Connection)
  


• 6 - Automatic Ratchet Chainstoppers
  


• 7 - Main Slewing Bearing (three row roller type) protected by Water Barrage
  


• 8 - Mooring Bridle (for Tanker Hawser Connection) with Load Cell
  


• 9 - Chain Tensioning & Maintenance Winch
  


• 10 - Chain tensioning Tripod with hoisting block
  


• 11 - Boat Landing Platform
  


• 12 - Buoy Hull (with Watertight Compartments)
  


• 13 - Anodes (Cathodic Protection)
  


• 14 - Anchoring Chains
  


• 15 - Divers Platform
  


• 16 - Nav Aids & Solar Panels
  

Additional Components (not shown):

• Hydraulic Power


• Surge Relief System