Brand | Evergreen Maritime |
Standard | ISO 17357-1:2014 |
Pneumatic Rubber Fenders
Our pneumatic fenders serve 40+ countries clients with proven track record. We are the regular fender supplier include pneumatic and foam fenders to US, Canadian and Chinese navy.
Floating Pneumatic Rubber Fenders which is made of synthetic-cord-reinforced rubber sheet with compressed air inside to enable it to float on the water and work as a shock absorber between two ships (ship-to-ship), or between ships and berthing structures when they come alongside each other on the water.
Note: The floating pneumatic rubber fenders have sometimes been colloquially referred to as "Yokohama Fenders" or "Yokohama type fenders" - ISO 17357:2002 Ships and marine technology - High-pressure floating pneumatic rubber fenders.
Advantages of Floating Pneumatic Rubber Fenders
Floating pneumatic rubber fenders can be easily handled and installed with guy-rope or guy-chain because of its light weight. It can resist the shearing force and maintain energy absorption level under inclined compressionup to 15 degrees. Meanwhile, provide the low and comparatively even hull pressure.
Consisted of several synthetic-cord layers and tough abrasion resistant out rubber, they have consistent performance even under rough condition and cyclic load. The maintenance cost and damage risk are minimised too. The best material also ensure the self-buoyancy and extremely long service life.
Floating Pneumatic Rubber Fenders Requirements
Construction features
Floating pneumatic rubber fenders shall consist of an out rubber, reinforcement synthetic-tyre-cord layer, and inner rubber, vulcanized firmly.
The out rubber are used to protect the cord layers and inner rubber from abrasion and other external forces. This rubber compound have sufficient tensile and tear resistance strength to withstand anticipated weather conditions and severe usage.
The reinforcement synthetic-tyre-cord layer strong enough to maintain the internal air pressure of the fender
The inner rubber layer seals the pressurized air inside the fender
Fenders of diameter 2500mm and larger equipped with safety valve for releasing excess internal pressure when the fenders are over-compressed accidentally.
The properties requirements of outer and inner rubber material of floating pneumatic rubber fenders comply with ISO 17357:2002.
Advantages
Evergreen-Maritime pneuamtic rubber fenders are widely accepted and used by more and more shipowners, port perators and so on because of its following advantages.
1.1.ISO 17357 appvoded
Evergree Maritime pneumatic fender is manfuacturered and testd comply with ISO17357:2014. In 2009, Evergreen Maritime pneuamtic fenders are certificated by Lloyd's comply with ISO17357.
1.1.1 Sufficient minimum pressure
THe minimum endurable pressure is probably the most important performance test and certainly the best way to verify whether a particular fender have enough body strength to sustain the increased internal air pressure when compressed during berthing and mooring operations.
1.1.2 Hydrostatic pressure test
THe hydrostatic pressure test is the second most important performance verification test and is used to estimate the body strength and design integrity of a fender.
This test is often done for the commercial fender upon the requirements of our customers. Its compliance is the essential requeirements of the manufacturer's certificate or the third party certificate.
2.1. Superior performance
2.1.1 Steady performance
Comparing with solid rubber or foam filled fenders, the performance of pneumatic fender is more steady. There isn't the derioration or variation in performance because as the changes of rubber or foam hardness occurring as a result of cyclic compression and temperature change.
2.1.2 Advantages at inclined berthing
Ships usually make initial contact with the dock or another ship on STS operation at oblique angle.
2.1.3 Resistance for shearing force
Considering combined force of the shearing forces with compression force, Evergreen Maritime pneumaitc fenders are reinforced by extra synthetic-tire-cord layers on the semicircle end. This design can provide the best resistance against shearing force when the ship shift to the correct mooring position.
2.1.4 Soft reaction force
This soft reaction force of pneumatic fenders cannot lead to damage the ship and mooring facilities. The increase of reaction force of pneumatic fenders isn't sharply, even under excess load conditions. Its this kind performance is better than solid rubber fenders, the reaction force of which increaseds sharply under exceeds load conditon.
2.1.5 Low mooring forces.
3.1 most economical fendering system
4.1 Adaptable to the tide
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