What Are Hydro Pneumatic Fenders?

The Hydropneumatic Fender is a special version of the Pneumatic Fender,which is developed for submarine docking. Hydropneumatic Fenders are partially filled with water and air. There is a counterweight connected at the fender bottom to keep them floating vertically in the sea. In this way, the submerged hull is effectively protected by the hydropneumatic fender all the time.

Hydropneumatic Submarine Fenders are more complicated design than standard pneumatic fenders, so they need some more special installation techniques to be installed. The performance of Hydropneumatic Fenders is affected by the air:water ratio, weight of counterweight and the initial pressure. Jerryborg Marine is pleased to receive your technical requirements allowing us to manufacturer the right type hydropneumatic floating fenders, size and overall design which suit your actual operation demand.

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Advantages of Hydro Pneumatic Submarine Fenders

1.Cost saving replacement solution for deep water berthing
2.Easily moved and high flexibility in berthing
3.Easily transported to provide emergency docking facilities
4.Simple and low cost in installation and maintenance
5.Unaffected by extreme climatic conditions

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Hydro Pneumatic Rubber Fender Technical Specifications

Hydro Pneumatic Fender Flange Design

Submarine Pneumatic Fender Technical Parameter

ItemWithout water 60% deflecctionFilled with water 45% deflection
Fender Size [mm]Energy [kNm]Reaction [kN]Ratio water/air [%]Energy [kNm]Reaction [kN]
1,700 × 7,200560181065/35134611
2,000 × 6,000647176665/35155599
2,500 × 5,500928203765/35223687
3,300 × 6,5001913316960/406161247
3,300 × 10,6003120517055/455891275

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