Marine Rubber Airbags Inflatable Launching Ship salvage Airbag ISO 9001 Certificate
The Selection of Ship Launching Airbag
Diameter: General speaking, the diameter of airbags for ship used is Dia1.5m. If the piers’ height is a little higher, we could choose the larger diameter airbags, such like Dia1.8m or Dia2.0m; and for the Dia1.0m or Dia1.2m airbags are suitable for some smaller sized ships.
Length of Effective (Le): The Le of airbags is the length of airbag’s cylinder part, and does not include the length of head vertebral body.
(1) Ship width≤20m: In theoretical, Le of airbags Ship width (B); and if the length of airbags could not feet the ship width, airbags could be put under ships for two rows.
(2) Ship width20m: Generally speaking, airbags will be put under ship as two rows, as butt arrangement or cross arrangement.
Operating Pressure of Airbags: Less than DWT 1,000 could choose S1 Category Airbags; Larger than DWT 1,000 could choose S2 Category Airbags; S3 Category Airbags are used for the special higher working pressure requirement situation.
NO.s of Airbags (N): The numbers of airbags required is decided by the length of ships/vessels, and N is equal to the NO.s of putting under ship body (N1) plus the spare ones (N2), which is formula: N1+N2=N (N1 stands for the pieces under ships, N2 stands for the pieces of spares). The main factors to decide numbers of airbags required is ship DWT and category of airbags. (NOTE: N1=DWT / (Bearing Capacity of Unit for airbags×Le), spare airbags are decided by the fact situation.)
ship launching airbags Specifications:
Diameter | Layer | Work pressure | Diameter | Layer | Work pressure |
D=0.8M | 3 | 0.13 Mpa | D=1.5M | 3 | 0.07 Mpa |
4 | 0.17 Mpa | 4 | 0.09 Mpa | ||
5 | 0.21 Mpa | 5 | 0.11 Mpa | ||
6 | 0.25 Mpa | 6 | 0.13 Mpa | ||
7 | 0.30 Mpa | 7 | 0.15 Mpa | ||
8 | 0.33 Mpa | 8 | 0.18 Mpa | ||
D=1.0M | 3 | 0.10 Mpa | D=1.8M | 3 | 0.06 Mpa |
4 | 0.13 Mpa | 4 | 0.08 Mpa | ||
5 | 0.17 Mpa | 5 | 0.09 Mpa | ||
6 | 0.20 Mpa | 6 | 0.11 Mpa | ||
7 | 0.25 Mpa | 7 | 0.13 Mpa | ||
8 | 0.28 Mpa | 8 | 0.15 Mpa | ||
D=1.2M | 3 | 0.09 Mpa | D=2.0M | 3 | 0.05 Mpa |
4 | 0.11 Mpa | 4 | 0.07 Mpa | ||
5 | 0.14 Mpa | 5 | 0.08 Mpa | ||
6 | 0.17 Mpa | 6 | 0.10 Mpa | ||
7 | 0.20 Mpa | 7 | 0.12 Mpa | ||
8 | 0.23 Mpa | 8 | 0.14 Mpa |
The feature of ship launching airbags
Suitable for launching at any seaside without construction of launching facilities.
Overcome the restriction upon fixed launching track of side-launch.
High strength with excellent resistance to wear and aging.
Good air tightness, high flexibility.
Well tested design and performance.
Save your time, effort, workload and investment.
Widely used by more shipyard all over the world.
Low maintenance.
Could be used repeatedly.
Major Strengths of Nanhai Airbag---Ship Launching Airbag
1.High safety level: equipped with a reliable safety valve, our airbags can stand the maximum pressure up to 4 times that of the operating pressure.
2.Good air tightness: pressure decreases less than 10% for a period of 24 hours.
3.Long lifespan: it is guaranteed that our airbags can sustain their designed operating pressure for 3 years.
4.A complete set of solutions is available.
Nanhai Airbag--Ship Launching Airbag
Ship Launching Airbag is an innovative technology that has utmost bright prospect in shipbuilding. It overcomes the disadvantage of fixed track launching by which the productivity of shipbuilding and ship repairing were limited in the small-sized and medium-sized shipyards.
All ship launching airbags are by Nanhai Airbag in accordance with ISO14409.
ship launching airbags Application
1. Hoisting and moving airbags: They can be widely used for moving various large prefabricated reinforced-concrete products (such as caisson, box culvert, and bridge), oil drilling equipment and integrated building, etc.
2. Floating and filling airbags: The corresponding buoyancy can be offered on the clients’ request for wreck salvage and underwater installation operation. Filling and floating gasbags can be flexibly used in the projects of wreck salvage, pontoon bridge installation, dock building, underwater transmission pipeline installation, etc. in many ways.
3. Ship landing and launching airbag: It is widely used for landing and launching the large-size, medium-size and small size ships, with the advantages of labor-saving, time-saving and capital-saving.
4. Mandrel airbag: It can substitute the wooden or steel mandrel used for pouring the hollow of large reinforced concrete structure.
5. Container airbag: It can be used as the gas or liquid storage and transport container.
Our Company
Nanhai airbag is the leading manufacturer for ship aibag or ship launching airbag, supplying to shipyards & trading companies in over 6 continents for ship launching or upgrading, repairs & salvage ship .
Having passed the QMS certifications of BV and ISO 9001,ISO17357,our products have been exported to more than 40 countries and regions around the world, being widely used in the fields of ports, ocean engineering, ships and tunnels. Last but not the least, We are the unique ISO17357 international standard certified pneuamtic rubber fender manufacturer in China.
If you want to more infomation about ship launching airbag,pls contact me sales@airbag.cc
