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
Model		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-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-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.