Buoyancy Bag – Enclosed Bottom
The Heavy Duty Buoyancy Bag, Air Lift Bag is used worldwide for raising sunken objects, vessel salvage, marine structure stabilization, underwater equipment transport, pipeline, and equipment towing and standby emergency buoyancy bag.
The Model of Totally Enclosed Lift Bag style is teardrop shaped inflatable buoyancy bag units used for supporting loads on the surface of the water. Air Lift Bag equip with one active venting relief/dump valve mounted in the center of the top lift plate. This valve is spring loaded with spring pressure set to open when over-pressured automatically.
All lift bag up to 10-tonne capacity comes with a threaded connector and an airtight cap. The use of this bottom fitting allows the lift bag to be either enclosed or open bottom.
Model Enclosed lift bag features are:
- Large lift capacity in a small packing space.
- Equipped with Inverter Line Attachment Point.
- All seams are RF welded.
- Appropriate screw pin shackle(s) and master links for a single lift/attachment point.
- ½” or 3/4″ NPT fill port with inflation valves available.
- Operation Manual with Certifications and Log Book.
- High Flow Relief/dump valve can be inverted and set to manual dump position for open bottom lift bag style.
- Class Load / volume certificate / verification of capacity available.
The application includes, but not limited to:
- Deep and Shallow Water Salvage
- Towing
- Recreational Diving
- Emergency Rescue
- General Flotation
- Static Buoyancy assist
- Pipe or Cable Flotation
- Under Water Construction
| Capacity ( T ) | Diameter ( M ) | Lenght ( M ) | Weight ( KG ) | |
| ALC 0.25 | 0.25 | 0.8 | 1 | 7 |
| ALC 0.5 | 0.5 | 1 | 1.2 | 10 |
| ALC 1 | 1 | 1 | 1.8 | 18 |
| ALC 2 | 2 | 1.3 | 2.2 | 28 |
| ALC 3 | 3 | 1.5 | 2.5 | 38 |
| ALC 5 | 5 | 1.5 | 3.3 | 53 |
| ALC 10 | 10 | 2 | 3.8 | 90 |
| ALC 15 | 15 | 2.2 | 4.5 | 120 |
| ALC 20 | 20 | 2.4 | 5.5 | 140 |
| ALC 25 | 25 | 3.5 | 5.7 | 190 |
| ALC 35 | 35 | 3 | 6 | 300 |
| ALC 50 | 50 | 3 | 7.8 | 350 |
Buoyancy Bag – Pontoon Style
The Pontoon Style Lift Air Bag is totally-enclosed, cylindrical buoyancy bag that is ideal for shallow water salvage, reducing the draft of a vessel or raising an object closer to the surface. Lift Air Bag is invaluable in cable and pipeline operations and where long tows are planned. Buoyancy bags are low maintenance and easy to clean. All seams are welded for strength, durability, and watertight integrity. The lift bag harness maintains the bag in a horizontal position while ensuring maximum stability.
The Pontoon Style Lift Bag, Totally Enclose Lift Bag style, is completely equipped including the appropriate quantity of automatic air relief valves, certified lift harness with shackles and fill ports.
Model Pontoon lift bag features are:
- Made of high tenacity PVC coated polyester fabric.
- Large lift capacity in a small packing space.
- All seams are RF welded.
- Versatile and stable shape.
- 1/2” or 3/4″ NPT fill port with inflation valves available.
- Operation Manual with Certifications and Log Book.
- High Flow Automatic Air Relief valves.
- Custom sizes available.
Applications include, but not limited to:
- Deep and Shallow Water Salvage
- Towing
- Recreational Diving
- Emergency Rescue
- General Flotation
- Static Buoyancy Assist
- Pipe or Cable Flotation
- Under Water Construction
| Capacity ( T ) | Diameter ( M ) | Lenght ( M ) | Weight ( KG ) | |
| ALB 0.25 | 0.25 | 1 | 1.4 | 5 |
| ALB 0.5 | 0.5 | 1.2 | 1.8 | 8 |
| ALB 1 | 1 | 1.5 | 2 | 12 |
| ALB 2 | 2 | 1.8 | 2.5 | 25 |
| ALB 3 | 3 | 2 | 3.3 | 35 |
| ALB 5 | 5 | 2 | 3.8 | 40 |
| ALB 10 | 10 | 2.4 | 4.5 | 75 |
| ALB 15 | 15 | 2.7 | 5.4 | 115 |
| ALB 20 | 20 | 3.2 | 5.5 | 120 |
| ALB 25 | 25 | 3.8 | 6 | 175 |
| ALB 35 | 35 | 4.2 | 6.5 | 220 |
| ALB 50 | 50 | 5 | 7.5 | 400 |
