Underwater Lift Bags

Underwater lift bags from Flexitank

Underwater lift bags from Flexitank Australia have been at the forefront of salvage and flotation since 1984. Flexitank design, engineer and manufacture a sophisticated range of inflatable lift bags for a multitude of applications and industries.

Underwater salvage lift bags from Flexitank are a trusted product worldwide.

Flexitank’s inflatable lift bags are widely used by salvage and marine operators, offshore oil and gas, shipping, and defense sectors.  Our inflatable lift bags offer an extensive range of off-the-shelf enclosed, parachute, and pillow style air bladders for lifting.

With our our state of the art lift bag design and manufacture, we address some of the world’s most demanding salvage and flotation challenges.


Shop Flexitank’s range of inflatable salvage and lift bags here:

Salvage lift bags

Flexitank’s salvage lift bags range from 250kg dive bags to heavy-duty helicopter flotation devices for the Australian Navy to 20 tonne parachute bags.

Flexitank offers a range of inflatable lift bags for salvage and flotation purposes that mean our clients have complete trust in our solutions, thanks to our proven track record, know-how, and a keen eye for detail.



Flexitank offer three types of inflatable lift bags for the purpose of salvage and flotation:

Enclosed cylindrical lift bags:

Parachute style lift bags:

Pillow tank shape lift bags:

*please note: Parachute lift bags and pillow tank shape lift bags are all supplied with a single lifting point at the base of the bag.


Flexitank salvage and lift bags are supplied as a ready to be used product, and are supplied with the following features:

  • Standard safe working ration of 6:1 (compliant to IMCA D-016);
  • 920gsm European PVC with heavy duty cloth giving it superior tensile strength;
  • 1” inlet and outlets with manual dump valves and either cam lock or claw (storz) depending on our client’s requirements;
  • Pressure relief valves with function set at 2 PSI above ambient pressure;
  • Heavy duty webbing straps with lifting points with Dee of bow shackles (at our client’s direction);
  • Heavy duty webbing straps with a single lifting point with a Dee of bow shackle (at our client’s direction);
  • Reusable valise bag; and,
  • Certificates of conformance

Need more information?

Send us your enquiry and we will assist you in any way we can

Every Flexitank lift bag is designed, manufactured and tested to meet strict IMCA D-016 regulations for the use of inflatable salvage and flotation lift bags.


Optimised to transport and to stow

around 500t of buoyancy can fit into a 20ft container; an incredible 1000t of buoyancy can be shipped in a single 40ft container

Operational flexibility via remote, user-controlled, variation of total buoyancy


Low ongoing maintenance requirements and very easily repairable if the need ever arises


Can be taken subsea deflated, and only inflated to provide buoyancy as and when required


Easy to handle

mass to buoyancy ratio of approximately 1%, so a 5t enclosed lift weighs only 45kg (99lbs)

Flexitank inflatable lift bags offer an unrivalled group of further advantages:


Fully compliant with IMCA D-016

We are currently the only Australian based manufacturer to be offering this compliance

Proven track history across a multitude of industry with 35 years of manufacturing knowhow


Cap sealed welds to ensure the longest inflation times and highest weld integrities offered anywhere in the world


Stock of most sizes held in house

Flexitank offers the ability for express shipment worldwide via traditional air freight avenues for emergency situations.

Manufactured from high performance, European manufactured 920gsm PVC in safety orange or yellow


Hot air welded seams and RF-welded closure points, with high quality and load-assured strops and connectors, all with full traceability back to our source


All attached strops and lifting points are sewn and welded to every bag

Our strops are designed for full loading in both vertical and horizontal loads

For more information on our range or to discuss any projects that you have in mind, please fill out the form below and our sales team will be in contact with you as soon as possible:

Lift bags in use | Flexitank Australia