Liftek blog post
Safely lifting heavy loads underwater poses challenges to efficiency and precision. Liftek's parachute subsea airlift bags deliver reliable buoyancy, engineered for controlled lift distribution, durability, and ease of deployment in remote offshore locations.
From underwater salvage to offshore construction support, our airlift bags help operators lift heavy objects with confidence. Liftek's products are made to meet the latest international standards and tested in world-class facilities, with clients from over 25 countries relying on our expertise.
Subsea airlift bags, or underwater lift bags as they are also known, are large inflatable devices used to raise heavy objects from the seabed. Liftek's parachute-style models have an open-bottom, cone-shaped design, which, when filled with compressed air, traps the air and generates lift.
Each bag connects to a load with a single-point webbing sling, ensuring even lift. Liftek's parachute bags feature top-mounted inlet valves and quick-release couplings for fast inflation, plus manual dump valves to vent air and control ascent. Heavy-duty safety lines are also attached to the bag's crown. These bags are robust, inflatable, and designed to safely lift loads underwater by displacing water with air.
Liftek's airlift bags stand out in global marine projects for several key reasons:
Engineered for Safety
Every Liftek parachute bag is manufactured with a high factor of safety. The airlift bag itself is built to a 5:1 safety factor, and the webbing slings are to 7:1, meeting IMCA D 016 standards for subsea lifting. This careful design margin guarantees reliability under heavy loads.
Premium Materials
We use only heavy-duty, UV-resistant, multi-ply PVC fabric. Liftek parachute bags are fabricated from durable & UV-resistant, heavy-duty 3-ply PVC fabric with RF-welded seams. The rugged material resists abrasion and sun exposure, which is a crucial aspect for repeated use in harsh marine environments.
Advanced Features
Liftek's bags come with user-friendly controls. Each bag includes a quick-release camlock coupling for fast inflation and a lanyard-operated dump valve for precise deflation. Clearly labeled inversion-line attachment points with 1.5× WLL strength help divers flip the bag upright if needed. These features make our bags easy and safe to operate even during complicated subsea lifts.
Certified Quality
Liftek is certified by DNV to ISO 9001, 14001, and 45001 standards, a proof of our commitment to quality and safety. All products are tested and certified at our facility before delivery. This quality assurance, combined with more than 125 trained specialists, means our bags and other products consistently meet the global engineering and safety regulations.
Global Track Record
Liftek has proven its subsea expertise worldwide. We serve clients in more than 25 countries across industries, including marine, offshore oil & gas, and salvage. Our participation in major maritime projects and conferences is another proof of our global recognition.
In summary, Liftek's parachute subsea airlift bags combine innovative design, top-quality materials, and stringent engineering standards. As a certified and experienced heavy lift company in UAE, we deliver subsea lifting solutions that operators can trust in the toughest marine environments. Our reputation as a leading lifting equipment supplier assures customers around the world that they can rely on our airlift bags for safe underwater lifting. When global projects demand dependable subsea lifting, Liftek guarantees proven performance and quality.
Liftek Technical Services LLC
P.O. Box: 8751, Musaffah Industrial Area, M-44,
Abu Dhabi, UAE
Liftek Technical Safety LLC
Office No 803, Suntech Tower, Silicon Oasis,
Dubai, UAE
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