0.08mpa 0.05mpa Nylon Yokohama Rubber Fender Boat Protection Safety

Safety And Reliable Boat Protection Yokohama Rubber Fenders

Advantage of Yokohama Rubber Fender

1. Safety and Reliability

Boat Rubber Fender are constructed of several layers of strong tire-cord, and are thus resistant to pressure and cutting. The safety factor adopted in the design of this fender is based on accepted theory and has been proven by extensive experimentation. large-size fenders are equipped with a safety valve to release the inside air in the event of accidental over-pressure.

2. No Deterioration or Variation in Performance

Boat Rubber Fender utilize the compressive elasticity of air, therefore performance deterioration due to fatigue is absent.

3. Advantages at Inclined Berthing

Boat Rubber Fender, energy absorption does not decrease at inclined compression up to 15 degrees.

4. Most Cost Competitive System

The utilization of the compressive elasticity of air provides completely uniform surface pressure on contact, making Boat Rubber Fender ideal. The surface pressure of the Boat Rubber Fender is equal to the internal air pressure. Due to low and uniform surface pressure properties, the Henger Pneumatic Rubber Fenders are popular at LNG-ship terminals.

5. Soft Reaction Force for Ship and Jetty Structure

The reaction force of Henger Pneumatic Rubber Fenders does not increase sharply, even under excess load conditions. Therefore, the Boat Rubber Fender perform well in such cases, and protect ships and mooring facilities.

6. Lower Mooring Forces under Rough Weather Conditions

The reaction force and deflection of Boat Rubber Fender do not easily reach the maximum because the reaction force increases slowly and allowable deflection is wide. Thus, the Henger Pneumatic Rubber Fenders safely protect ships and mooring facilities even under rough weather.

Specificaton of Yokohama Rubber Fender

Features of Yokohama Rubber Fender

1. Yokohama rubber fenders shall consist of a cylindrical air bag with hemispherical heads at both ends, which shall be filled with compressed air. The basic body construction of this fender shall consist of an outer rubber, synthetic-tyre-cord layer (see Annex A) for reinforcement, and an inner rubber. All of these shall be vulcanized firmly.

2. The outer rubber shall protect the cord layers and inner rubber from abrasion and other external forces. This rubber compound shall have sufficient tensile and tear resistance strength to withstand anticipated weather conditions and severe usage.

3. The inner rubber layer shall seal the air inside.

4. The reinforcement synthetic-tyre-cord layers shall be strong enough to hold the internal pressure. In both compressed and non-compressed situations.

5. The flange opening shall be at either end, or both ends, for convenience of air charge and water filling for Type I and Type II. The flange opening shall be at only one end for Type I Single and no metal parts shall be at the other end to make that end safe from permanent deformation when it gets over compression.

6. The end of the reinforcement-cord layers shall enter the bead ring and be turned up outside the bead ring, which is built-in at the flange opening. Diameter of the bead ring or other steel material around the flange opening shall be less than 0,20 D (D: fender diameter) to make metal parts safe from permanent deformation when it gets over compression near to 80 %. For Type I (Net-type) fenders, the bead ring, and turning up on construction can be excluded.

7. Fenders of diameter 2 500 mm and larger shall be equipped with a safety valve for releasing excess internal pressure when the fenders are over-compressed accidentally. Fenders which are smaller than 2 500 mm in diameter, can be equipped with a safety valve if required.

8. The fender shall be equipped with an air valve for inflation and checking air pressure.

Outer and Inner Rubber Material Requirements of Yokohama Rubber Fenders