Parachute Type Underwater Air Lift Bags Customized 250kg - 100ton Capacity
Product Details
| Type: | Enclosed/Open Bottom Parachute Type | Application: | Lifting From Seabed To Surface |
|---|---|---|---|
| Production Standard: | IMCA D-016 | Safety Factor: | 5:1 |
| Strops WLL Factor: | 7:1 | Valves: | Dump Valves On Top |
| Capacity: | 250kg ~ 100ton | Production Technology: | HF Welding |
| Highlight |
Parachute Type Underwater Air Lift Bags,Underwater Air Lift Bags Customized,Underwater Lifting Bags250kg |
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Product Description
DOOWIN underwater air lift bags are highly versatile tools designed to safely support and lift loads at various depths. With a single-point attachment system, they are perfect for lightening underwater structures like pipes or salvaging vessels from the seabed. These durable bags withstand harsh environments, and larger models can even be surface-towed at speeds up to 1.5 knots in moderate sea conditions.
Engineered for maximum lift with minimal height, DOOWIN underwater air lift bags feature a wide hem design for rapid emergency inversion—enhancing diver safety. The bags automatically vent excess air during ascent, ensuring stable operation regardless of load orientation. Their streamlined rigging reduces shipping weight without compromising strength or safety, making them ideal for challenging subsea conditions like poor visibility and strong currents.
Every DOOWIN underwater air lift bag exceeds international standards, including IMCA D-016 compliance. Unique in the industry, DOOWIN conducts drop tests to validate safety factors (7:1 WLL on strops, 5:1 overall assembly) and inverter line performance. Each unit arrives ready for immediate use, complete with certification and an operating manual.
Whether you need an off-the-shelf underwater air lift bag or a custom design, DOOWIN leverages decades of expertise to deliver tailored solutions. Our team collaborates closely with clients to address specific subsea challenges.
- Safety: IMCA D-016; 7:1 WLL strops; independently tested to 5:1 safety factor.
- Ease of Use: Handle ladders on the outside of each air lift bag.
- Durability: High-tensile polyester canopy with RF-welded seams; 316 stainless steel Camlock valves.
- Support: Worldwide service via email/phone; field repair kits for minor damage; ISO 9001 certified manufacturing.
DOOWIN underwater air lift bags undergo rigorous overload certification by BV. Our subsea inversion tests ensure bags deploy safely, avoiding high-speed surfacing risks.
- Open Bottom Parachute Type
- Enclosed Bottom Parachute Type
| Model | Capacity | Max.Diameter (m) | Filled Height (m) | Appr. Gross Weight (kg) |
|---|---|---|---|---|
| OBP-50L | 50 KG | 0.3 | 1.1 | 2 |
| OBP-100L | 100 KG | 0.6 | 1.3 | 5 |
| OBP-250L | 250 KG | 0.8 | 1.7 | 7 |
| OBP-500L | 500 KG | 1.0 | 2.1 | 14 |
| OBP-1T | 1,000 KG | 1.2 | 2.3 | 24 |
| OBP-2T | 2,000 KG | 1.7 | 2.8 | 30 |
| OBP-3T | 3,000 KG | 1.8 | 3.0 | 35 |
| OBP-5T | 5,000 KG | 2.2 | 3.5 | 56 |
| OBP-6T | 6,000 KG | 2.3 | 3.6 | 60 |
| OBP-8T | 8,000 KG | 2.6 | 4.0 | 100 |
| OBP-10T | 10,000 KG | 2.7 | 4.3 | 130 |
| OBP-15T | 15,000 KG | 2.9 | 4.8 | 180 |
| OBP-20T | 20,000 KG | 3.1 | 5.6 | 200 |
| OBP-25T | 25,000 KG | 3.4 | 5.7 | 230 |
| OBP-30T | 30,000 KG | 3.8 | 6.0 | 290 |
| OBP-35T | 35,000 KG | 3.9 | 6.5 | 320 |
| OBP-50T | 50,000 KG | 4.6 | 7.5 | 450 |
| OBP-100T | 100,000 KG | 5.7 | 8.7 | 600 |
Product Highlights
DOOWIN Parachute Type Underwater Air Lift Bags offer safe, efficient lifting from seabed to surface, compliant with IMCA D-016 standards. Featuring a 5:1 safety factor, 7:1 WLL strops, and dump valves for stability, these durable bags (250kg-100ton capacity) are HF-welded for harsh environments. Custom or standard options available, with rigorous testing including drop tests for reliability. Ideal for subsea operations with poor visibility or strong currents.
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