Marine Salvage Airbags
Efficient Solutions for Underwater Lifting & Salvage Operations
Henger’s marine salvage airbags are important in offshore operations. They are based on the design of ship launching airbags. These airbags provide a reliable and efficient way to lift and move heavy underwater structures. They are also known as buoyancy aid bags and floats. These airbags are vital for salvaging shipwrecks, moving large underwater objects, and aiding in underwater construction and repair.
Marine Salvage Airbag introduction
The Henger Marine Salvage Airbag is designed for the marine rescue and salvage industry. The core material is a high strength synthetic fiber layer (reinforced with a rubber layer) for superior tensile strength and durability. The outer layer is made of abrasion- and puncture-resistant heavy-duty rubber. This ensures long term use in harsh marine environments. The overall shape is a closed cylindrical construction design with an automatic pressure relief valve and polyester sling. This provides a safety factor of at least 6:1 to ensure reliability and safety in deep water operations.
Marine salvage airbags are widely used for a variety of marine engineering tasks. These include wreck salvage, pontoon and jetty construction, pipeline laying. Also included are uses such as ship draft reduction and temporary bridge construction. The small size and light weight of the airbag after deflation makes it easy to transport and deploy quickly. It can vertically right a wreck in deep water and be used as a temporary pontoon in shallow water to meet various salvage needs.
This airbag is made of multi-layer synthetic tire cord fabric and vulcanized inner rubber, which has the characteristics of high pressure resistance and heavy load. The safety valve installed at the end of the airbag can automatically release the internal pressure in deep water to enhance the safety of use. Compared to traditional PVC airbags, the Henger airbag has significant strength and adaptability advantages, making it an ideal choice for marine salvage and rescue.
Salvage Airbag construction
Marine salvage airbags utilize an advanced structural design that ensures strong performance in harsh marine environments. These airbags have an outer rubber layer and a multi-layer synthetic fiber cord for reinforcement.
Outer Rubber Layer: The outer layer of the Salvage airbag is made of specially formulated rubber that is abrasion, puncture, and tear-resistant. This layer is essential to protect the internal components from the external marine environment and ensures the longevity of the airbag during rigorous use.
Synthetic Ply Cord: Inside the rubber shell, these airbags have multiple layers of synthetic ply cord. It is a similar material to what is used to make car tires. This reinforcement gives the airbag superior strength and flexibility, allowing it to withstand enormous underwater pressures and loads without bursting.
Internal Structure: The design has internal baffles and end fittings. They keep the airbag’s shape and provide points to attach the rigging. These structures are essential to ensure that the airbag works effectively under load conditions and can be securely fastened to salvage objects or lifting machinery.
Detailed Technical Information
Henger’s marine salvage airbags use rugged and advanced engineering. They ensure good performance in tough underwater places. For different requirements, we offer different specification options to meet your unique needs.
| Effective Length(m) | Marine Salvage Airbags Buoyancy(tons) | ||||
| 5 | 3.93 | 5.65 | 8.84 | 12.72 | 15.71 |
| 6 | 4.71 | 6.79 | 10.6 | 15.27 | 18.85 |
| 7 | 5.5 | 7.92 | 12.37 | 17.81 | 21.99 |
| 8 | 6.28 | 9.05 | 14.14 | 20.36 | 25.13 |
| 9 | 7.07 | 10.18 | 15.9 | 22.9 | 28.27 |
| 10 | 7.85 | 11.31 | 17.67 | 25.45 | 31.42 |
| 11 | 8.64 | 12.44 | 19.44 | 27.99 | 34.56 |
| 12 | 9.42 | 13.57 | 21.21 | 30.54 | 37.7 |
| 13 | 10.21 | 14.7 | 22.97 | 33.08 | 40.84 |
| 14 | 11 | 15.83 | 24.74 | 35.63 | 43.98 |
| 15 | 11.78 | 16.96 | 26.51 | 38.17 | 47.12 |
| 16 | 12.57 | 18.1 | 28.27 | 40.72 | 50.27 |
| 17 | 13.35 | 19.23 | 30.04 | 43.26 | 53.41 |
| 18 | 14.14 | 20.36 | 31.81 | 45.8 | 56.55 |
Advantages Over Other Solutions
Henger’s Marine Salvage Airbags offer significant advantages over traditional lifting solutions such as PVC airbags. Especially in terms of durability, strength and operational efficiency. This makes the Sea Rescue Airbag the preferred choice for many offshore operations.
Integral screw-type strapping design:Our salvage airbags utilize integrated screw-in strapping technology. This design has no weld seams and avoids the weaknesses that weld joints can cause. This design improves the overall strength of the airbag. And the tapered end design ensures that the airbag adapts to complex underwater environments. This can provide higher safety and reliability.
Durability and Strength:Henger’s marine salvage airbags are constructed with a special synthetic tire cord layer covered with thick, durable rubber. This construction is superior to traditional PVC airbags. PVC airbags are typically made of lighter, less durable plastics that are prone to perforation and wear.
High buoyancy: Henger ship salvage airbags have excellent buoyancy capabilities ranging from 1 to 200 tons.
Suitable for deep water operations:These airbags are designed for deep water salvage. They have a maximum working pressure of 0.25 MPa and are suitable for use in waters up to 25 meters deep. Equipped with a safety valve that can automatically release the internal pressure in deep water environment to protect the operation safety. It is suitable for a variety of applications such as wreck salvage and deep water platform draft reduction.
Operational efficiency: Marine salvage airbags are far more efficient than PVC airbags at lifting heavy loads. They deploy faster and require less maintenance, making them particularly suitable for emergency salvage operations. In addition, the inflation process of the airbags can be precisely controlled, improving the accuracy of positioning and lifting, which is difficult to achieve with PVC airbags.
Environmental and Operational Advantages:Henger’s salvage airbags are designed to be environmentally friendly. Most of the materials used are recyclable and the airbags have a long lifespan, helping to minimize waste. Operationally, these airbags are adaptable to a wide range of marine environments, from shallow water to deep sea. Their structure remains intact under varying pressures, making them suitable for salvage operations in sensitive ecological areas with minimal environmental impact.
Wear-resistant design:Henger marine salvage airbags have 6 to 12 layers of reinforcing layers, with excellent abrasion and puncture resistance. The multi-layer structure ensures that the airbag will last for a long time under high loads and in harsh environments.
Multi-purpose airbags:Henger marine salvage airbags are widely used. It can be used for shipwreck salvage, pipeline laying, bridge support and many other marine projects.
Installation & Maintenance
Proper installation and maintenance are vital. They ensure the airbags work well and last long in offshore operations. Below Henger has compiled a detailed guide to the proper installation and long-term maintenance of these airbags.
Installation Tips
Preparation: Before deploying, inspect the airbag for any signs of damage or wear. Make sure the airbag is clean and free of debris that could puncture or abrade the material.
Inflate: Slowly inflate the airbag to monitor pressure build-up. It is critical to avoid over-inflation, so always adhere to the pressure limits set by the manufacturer. Use a pressure gauge to accurately monitor pressure.
Positioning: Strategically position the airbag based on load distribution and the center of gravity of the object to be lifted. Make sure all attachments and rigging are secure and evenly distributed. This will prevent uneven lifting. That could damage the airbag or object.
Submerge: Use the airbag for underwater work. Gradually submerge it to get used to the water pressure. Make sure its valves and seals work well to stop water from getting in.
Maintenance Tips
Cleaning: After each use, wash the airbag with water. This removes salt, dirt, and other residues. They can degrade the rubber over time. Let the airbag dry fully before storage. Then, evenly coat it with vulcanizing powder.
Storage: Store the airbag in a cool, dry place. Avoid direct sunlight and sharp objects. It is best to store them inflated or hanging under low pressure. This prevents creases and folds from weakening the material.
Periodic Inspection: Check regularly for any signs of wear, tear, or deterioration. Check the integrity of the rubber, seams, and joints. Airbags with damage should be fixed or replaced right away. This is needed to keep them safe.
Keep Records: Keep a log of all use, inspection, and maintenance activities. This helps predict airbag life and schedule replacement, ensuring that airbags are always in optimum condition when needed.
FAQ
Larger-diameter airbags are often used for large operations because they are more buoyant. Enclosed and parachute airbags are commonly used for heavy lifting due to their uniform lifting force.
Choosing the right airbag requires consideration of load weight, water depth, and lifting height. In conjunction with the spatial constraints of the operating environment, choose an airbag that can withstand the pressure and provide adequate buoyancy.
Check airbags for damage before use monitor air pressure during operation and ensure that the recommended pressure is not exceeded. Ensure that all personnel are properly trained and follow safety procedures.
Yes, boats can be equipped with airbags for marine salvage operations. These airbags are usually used in emergency situations. They are inflated to provide buoyancy to help salvage a wreck or to help float a stranded vessel.
Marine salvage operations refer to the recovery of damaged, sunken or stranded vessels, cargo or other structures. Common types of salvage techniques include wreck salvage, wreck removal and cargo salvage. Specialized equipment such as cranes, tugboats and offshore airbags are often used in operations.
