Qingdao Jerryborg Marine Machinery Co., Ltd
Fendering and Floating Solutions
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Submarine Protection Inflatable Hydro Pneumatic Fender Natural Rubber With Good Airtightness
Inflatable Hydro Pneumatic Fender
Inflatable hydro pneumatic fender is used in aircraft carrier, semi-submersible platforms, and drilling rigs for a long time.
Inflatable hydro pneumatic fenders are made of natural rubber and tire cord reinforcement in the shape of cylindrical, which is strong enough to withstand external forces and severe weather conditions.
This inflatable hydro pneumatic fender is filled with water and air inside to make it vertically installed against submerged hulls with a counterweight. It’s always regarded as a buffer to reduce shock in between due to its excellent performance of great elasticity and abrasion-resistance.
Inflatable Hydro Pneumatic Fender Structure
① Outer rubber layer
Inflatable hydro pneumatic fenders are covered by the outer layer made of natural rubber. This rubber compound is strong enough to protect the inner layer and synthetic-cord layer from the damage of external forces and severe weather conditions due to its high elasticity and abrasion resistance.
② Synthetic-tire-cord layer
The synthetic-tire-cord layer is a composite tire cord with cross shadow lines, which is designed to distribute stress evenly.
③ Inner rubber layer
The inner rubber layer is specially designed to seal the internal air and prevent any leakage, just like the inner tube of a tire.
Inflatable Hydro Pneumatic Fender Advantage
1. Strong Enough against Shear Force
Inflatable hydro pneumatic fender is made of reinforced-tire-cord layers which enable it to make it cope against the shear forces and compression forces.
2. Tide Adaptation
Inflatable hydro pneumatic fender is filled with pressure air inside that makes it flexible and easy to float on the water and adapt to the tide variation.
3. Lower Maintenance Expenses
The maintenance expenses mainly include the cost of checking air leakage and replacing the old chain net. Due to the good performance of pressure-holding, the air leakage can be checked only once a year and the chain net has a lifespan of 3 or 4 years depending on environmental conditions.
Inflatable Hydro Pneumatic Fender Specification Table
| fender size (mm) | without water 60% deflection | filled with water 45% deflection | ||||
| energy (knm) | reaction (kn) | ratio water/air (%) | energy (knm) | reaction (kn) | ||
| 1700×7,200 | 560 | 1,810 | 65/35 | 134 | 611 | |
| 2,000×6,000 | 647 | 1,766 | 65/35 | 155 | 599 | |
| 2,500×5,500 | 928 | 2,037 | 65/35 | 223 | 687 | |
| 3,300×6,500 | 1,913 | 3,169 | 60/40 | 616 | 1,247 | |
| 3,300×10,600 | 3,120 | 5,170 | 55/45 | 589 | 1,275 | |
| standard tolerance of ±10% | ||||||
For further information free to contact us.