Our hydro pneumatic fenders provide advanced underwater protection for submarines and naval vessels through innovative engineering. These specialized marine solutions utilize a precisely balanced combination of air and water (30%-70% adjustable ratio) with integrated counterweight systems to maintain optimal vertical positioning during all berthing operations. The pneumatic fenders’ unique design ensures continuous hull protection while accommodating various pressure settings to meet different operational requirements.
Engineered for superior performance, these hydropneumatic fenders offer exceptional energy absorption and adapt seamlessly to diverse hull contours. Their cost-effective design provides a reliable alternative to traditional solutions, featuring rapid deployment capabilities and minimal maintenance needs even in harsh marine environments. Each system is custom-designed through professional engineering analysis to match specific vessel requirements and berthing conditions.
Trusted by navies worldwide, our hydropneumatic fenders deliver unmatched protection through tailored solutions that combine technical precision with operational reliability.
Counterweight-balanced design with adjustable ballasting maintains precise vertical alignment (±2° deviation) for consistent underwater hull protection.
Performance optimized via customizable air-water ratios (typically 30%-70%) and initial pressure settings for varying berthing conditions。
Low-maintenance deployment unaffected by extreme climates, with flange ports for rapid water charging/discharging.
Enhanced burst strength exceeding standard fenders with safety valves for overpressure protectio
Model | Water : Air | Absorb Energy (kNm) Air Filled (no water) | Reaction Force (KN) Air Filled (no water) | Water : Air | Absorb Energy (kNm) Partially water filled | Reaction Force (KN) Partially water filled |
|---|---|---|---|---|---|---|
HF 1700x7200 | 0 : 100 | 566 | 1 774 | 65 : 35 | 135 | 599 |
HF 2000x6000 | 0 : 100 | 653 | 1 731 | 65 : 35 | 157 | 587 |
HF 2500x5500 | 0 : 100 | 937 | 1 996 | 65 : 35 | 225 | 673 |
HF 3300x6500 | 0 : 100 | 1 932 | 3 106 | 65 : 35 | 622 | 1 222 |
HF 3300x10500 | 0 : 100 | 3 151 | 5 067 | 65 : 35 | 595 | 1 250 |
The fittings at both ends can be customized according to customer needs, including galvanized or stainless steel
Openings at the upper and lower flanges allow water to charge and discharge. A pressure relief valve allows the controlled release of air in the event of overcompression.
Telephone: +86-532-67730629
Mobile: +86-186 6025 7896 (WhatsApp)
Email: sales@doowinmarine.com
Hydro-pneumatic fenders, or hydro-pneumatic bumpers, are a specialized type of fender designed for use in marine environments, particularly for protecting submarines and other underwater vessels. Here’s a detailed explanation of what they are and how they work:
Hydro-pneumatic fenders are partially filled with water and air, and equipped with a counterweight to keep them in a vertical position. This ensures that the submerged hull of a vessel is properly protected at all times.
Hydro-pneumatic fenders are primarily used in marine environments to protect submarines and other underwater vessels. They are also suitable for use in ports, shipyards, and other areas where vessels may contact fixed structures or other vessels.
In summary, hydro-pneumatic fenders are a specialized type of marine fender that provide effective protection to submerged hulls of vessels. Their unique structure and working principle allow for high energy absorption and vertical stability, making them an ideal choice for protecting submarines and other underwater vessels.
Address: Xiazhuang, Chengyang, Qingdao, China
Telephone: +86-532-8778 8178
Mobile: +86-186 6025 7896 (WhatsApp)
Email: sales@doowinmarine.com
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Email: sales@doowinmarine.com
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