Underwater Air Lift Bag Open Bottom – Parachute Style “OB/DL”
The Canflex Model OB/DL “Underwater Air Lift Bag Open Bottom” parachute style, are tear drop shaped units used for lifting objects from any depth. These air lift bags are equipped with one positive venting relief/dump valve mounted in the center of the top lift plate. This valve is spring loaded with the spring pressure set on “diver controlled manual dump position.”
All OB/DL lift bags up to 10 tonne capacity come with a 146 mm threaded connector and an air tight cap. The use of this bottom fitting allows the lift bag to be either totally enclosed TE/DLE, or open bottom OB/DLE.
Open bottom lift bags are most commonly used in commercial and military salvage. These are the most commonly used bags for deep water lifts.
Some of the Canflex Model OB/DLE lift bag features are:
- Made of high tenacity PVC coated polyester fabric (48 to 88 oz/y2)
- Large lift capacity in a small packing space
- Equipped with inverter line attachment point
- All seams are RF welded
- Appropriate shackle(s) and master links for a single lift / attachment point
- ½” or ¾” NPT fill port with inflation valves available
- Operational manual with certifications and log book
- Appropriate screw pin shackle(s) for a single lift point
- High flow relief/dump valve can be inverted and set to automatic dump position for totally enclosed TE/DLE lift bag
- ABS load / volume certificate/verification of capacity available
Testing Applications include, but not limited to:
- Deep and Shallow Water Salvage
- Towing
- Recreational Diving
- Emergency Rescue
- General Flotation
- Dynamic Ascending Buoyancy Assist
- Pipe or Cable Flotation
- Under Water Construction
Capacities range from 1 to 50 Tonnes (1,000 to 50,000 kg).
Technical Information
CANFLEX LIFT BAGS “OPEN OR ENCLOSED” BOTTOM STYLE
| Model | Lift Capacity |
Height | Width | Volume | Shipping Cube |
Dry Weight |
|||||||
| kg | lb | m | ft-in | m | ft-in | m3 | ft3 | m3 | ft3 | kg | lb | ||
| * | DLE-1 | 1000 | 2200 | 1.80 | 5′-11″ | 1.20 | 3′-11″ | 1.00 | 35.32 | 0.15 | 5.4 | 20.41 | 45 |
| * | DLE-2 | 2000 | 4400 | 2.20 | 7′-3″ | 1.50 | 4′-11″ | 2.00 | 70.63 | 0.18 | 6.5 | 27.22 | 60 |
| * | DLE-3 | 3000 | 6600 | 2.60 | 8′-7″ | 1.70 | 5′-8″ | 3.00 | 105.95 | 0.24 | 8.4 | 34.02 | 75 |
| * | DLE-4 | 4000 | 8800 | 2.85 | 9′-4″ | 1.91 | 6′-3″ | 4.00 | 141.26 | 0.30 | 10.5 | 39.46 | 87 |
| * | DLE-5 | 5000 | 11000 | 3.00 | 10′-0″ | 2.00 | 6′-8″ | 5.00 | 176.58 | 0.40 | 14.0 | 45.36 | 100 |
| * | DLE-6 | 6000 | 13200 | 3.35 | 11′-0″ | 2.31 | 7′-7″ | 6.00 | 211.89 | 0.45 | 16.0 | 54.43 | 120 |
| * | DLE-8 | 8000 | 17600 | 3.56 | 11′-8″ | 2.38 | 7′-9″ | 8.00 | 282.52 | 0.49 | 17.3 | 63.50 | 140 |
| * | DLE-10 | 10000 | 22000 | 3.84 | 12′-7″ | 2.56 | 8′-4″ | 10.00 | 353.15 | 0.57 | 20.0 | 74.84 | 165 |
| * | DL-12 | 12000 | 24000 | 4.08 | 13-‘4″ | 2.72 | 8′-11″ | 12.00 | 423.78 | 0.68 | 24.0 | 90.72 | 200 |
| ** | DL-15 | 15000 | 33000 | 4.26 | 14′-0″ | 2.98 | 9′-10″ | 15.00 | 529.73 | 0.85 | 30.0 | 145.15 | 320 |
| ** | DL-20 | 20000 | 44000 | 5.96 | 19′-7″ | 3.42 | 11′-3″ | 20.00 | 706.30 | 1.81 | 64.0 | 172.36 | 380 |
| ** | DL-25 | 25000 | 55000 | 6.07 | 19′-11″ | 3.86 | 12′-8″ | 25.00 | 882.88 | 1.81 | 64.0 | 208.65 | 460 |
| *** | DL-35 | 35000 | 77000 | 6.80 | 22′-4″ | 4.29 | 14′-1″ | 35.00 | 1236.03 | 1.81 | 64.0 | 249.47 | 550 |
| *** | DL-40 | 40000 | 88000 | 7.32 | 24′-0″ | 4.46 | 14′-8″ | 40.00 | 1412.60 | 2.27 | 80.0 | 331.12 | 730 |
| **** | DL-50 | 50000 | 110000 | 7.62 | 25′-0″ | 5.09 | 16′-8″ | 50.00 | 1765.75 | 2.27 | 80.0 | 476.27 | 1050 |
NOTE: All capacities are based on fresh water, 100 kg/m3 (62.4 lbs/ft3)
1000 kg = 1 Metric Tonne = 2205 lbs; 1 Short Ton = 2000 lbs; 1 Long Tonne = 2240 lbs
MATERIAL SPECIFICATIONS: “High Tenacity – PVC coated polyester fabric” with RF (HF) Welded seams
(*) Total material weight = 48 oz/yd2 (1622 g/m2).
(**) Total material weight = 56 oz/yd2 (1884 g/m2).
(***) Total material weight = 67 oz/yd2 (2278 g/m2).
(****) Total material weight = 89 oz/yd2 (3024 g/m2).
All Surface and Underwater Lift Bags are completely equipped including: Appropriate quantity of automatic air relief valves and manual dump valve, lift harness of high strength polyester and carry/storage satchel or marine-grade, shipping/storage plywood box.
