The Hydropneumatic Fender is a special version of the Pneumatic Fender developed for submarines. Hydropneumatic Fenders are partially filled with water and air and are equipped with a counterweight in order to keep them in a vertical position. This ensures that the submerged hull is properly protected by the fender at all times.
Fender Size | Without water 60 % deflection | Filled with water 45% deflection | ||||
D x L | Reaction Force | Energy Absorption | Ratio Water / Air | Reaction Force | Energy Absorption | |
[mm] | [mm] | [kN] | [kNm] | [%] | [kN] | [kNm] |
1700 | 7200 | 1810 | 560 | 65/35 | 611 | 134 |
2000 | 6000 | 1766 | 647 | 65/35 | 599 | 155 |
2500 | 5500 | 2037 | 928 | 65/35 | 687 | 223 |
3300 | 6500 | 3169 | 1913 | 60/40 | 1247 | 616 |
3300 | 10600 | 5170 | 3120 | 55/45 | 1275 | 589 |
* Other sizes can be customized according to the requirements. |
With certification, product quality is More Guaranteed!
Since 1990, Hongruntong Marine have been committed to the supplying of equipments, tools and solutions for the marine and offshore industry. Up to now, we have reached cooperation with 800+ customers in more than 30 countries and regions around the world.
1. What's the material of your fenders?
Material: Natural Rubber + Synthetic-tyre-cord layer for reinforcement.
2. What's the advantage of your fenders?
Built and tested in accordance with US Navy specifications.
Multi-layer tire cord reinforcement.
Stable price and delivery time.
Best Customer Testimonials .
3. How long about the shortest delivery time?
Multiple production lines are synchronized to ensure delivery within the specified time.
4. What's your MOQ of your fenders?
MOQ: 1 Piece.
5. What's the lifespan of your fenders?
Lifespan: More than 10 years.
6. What's the warranty period of your products?
36 months. Excellent quality reassures you and me.
7. What's your standard of the fenders?
To be satisfy with US Navy Specifications.
8. What kind of certificate can you provide?
DNV.GL, BV, CCS, ABS, LR certificates are available.