Enclosed Flotation Bags

Enclosed Flotation Bags are pillow-shaped, fully enclosed buoyancy devices designed for controlled flotation close to the surface. Engineered for flexibility, these bags can be deployed upright or flat, internally or externally, making them ideal for vessel salvage, auto recovery, pipeline and cable installation, and emergency flotation of ships, aircraft, submersibles and ROVs.

Manufactured by Subsalve USA, the bags are constructed from urethane-coated, high-strength nylon with RF-welded seams, delivering excellent abrasion resistance, chemical resistance and long service life in harsh marine environments.

Each bag is supplied fully assembled and ready for immediate use, with integrated lifting hardware, pressure relief valves and a built-in heavy-duty harness providing a safe working ratio of 6:1.

Construction & Materials

• Urethane-coated high-strength nylon

• Heavy-duty fabric with RF-welded seams

• Superior abrasion resistance

• Resistant to most petro-chemicals

• UV-resistant

• Low maintenance and easy to clean

Safety & Ease-of-Use Features

• Supplied complete with all required hardware

• 3/4″ NPT inflation / deflation port with ball valve

• Stainless steel quick-disconnect inflation fitting

• Pressure relief valves set to vent at 2.5 psi above ambient pressure

• Multiple relief valves fitted to allow safe venting during free ascent

• Heavy-duty nylon lift harness built into the bag body

• Safe working ratio: 6:1

Rigging Flexibility & Applications

• Multiple rigging configurations possible

• Use single bottom attachment point (shackle supplied)

• Invert bag to use multiple stainless steel top rings

• Suitable for:

  • Vessel and marine salvage

  • Auto and equipment recovery

  • Pipeline and cable installation

  • Emergency flotation

  • Aircraft, ROV and submersible recovery

Compliance & Quality Assurance

• Individually tested prior to shipping

• Custom sizes available

• Compliant with:

  • IMCA D-016-AIRBAGS

  • ABS

  • U.S. Department of Defense Standards

Available Models & Capacities

Metric Range

• Lift capacities from 100 kg to 3,000 kg

• Multiple sizes and attachment configurations available to suit light recovery through to emergency flotation tasks

Typical Applications

• Near-surface flotation and stabilisation

• Emergency buoyancy for vessels and structures

• Controlled lifting and positioning

• Offshore, inshore and inland water operations

Product Specifications