BV Certificate Marine Parts Yokohama Type Pneumatic Marine Rubber
Buoy Fenders
What is Marine Yokohama Fender
The "Yokohama Type Pneumatic Rubber Fender" was developed in 1958.
Progress in the development of such floating pneumatic rubber
fenders is closely related to the progress and development of ship
technology, and has to continuously cope with progressively larger
oil tankers such as VLCC's, ULCC's, large gas carriers, bulk
carriers and floating structures.
Floating pneumatic fenders are used world wide for ship-to-ship
(STS) transfer operations, terminals, and for all kinds of ships.
Since its creation until today, more than millions of fenders have
been supplied worldwide both for ship-to-ship and ship-to-dock
(STD) operations serving our valuable customers. These fenders play
a critical role in the safe operation of ship berthing and mooring.
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Marine Yokohama Fender types
Marine Yokohama Fender layout
Pneumatic Rubber Fenders 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.
No Deterioration or Variation in Performance
Pneumatic Rubber Fenders utilize the compressive elasticity of air,
therefore
performance deterioration due to fatigue is absent.
Advantages at Inclined Berthing
Pneumatic Rubber Fenders, energy absorption does not decrease at
inclined compression up to 15 degrees.
Most Cost Competitive System
The utilization of the compressive elasticity of air provides
completely uniform surface pressure on contact, making Pneumatic
Rubber Fenders ideal. The surface pressure of the Pneumatic Rubber
Fenders is equal to the internal air pressure.
Due to low and uniform surface pressure properties, the Pneumatic
Rubber Fenders are popular at LNG-ship terminals.
Soft Reaction Force for Ship and Jetty Structure
The reaction force of Pneumatic Rubber Fenders does not increase
sharply, even under excess load conditions. Therefore, the
Pneumatic Rubber Fenders perform well in such cases, and protect
ships and mooring facilities.
Lower Mooring Forces under Rough Weather Conditions
the reaction force and deflection of Pneumatic Rubber Fenders do
not easily reach the maximum because the reaction force increases
slowly and allowable deflection is wide. Thus, the Pneumatic Rubber
Fenders safely protect ships and mooring facilities even under
rough weather.
Marine Yokohama Fender specification:
Specification
D*L(m) | Initial pneumatic pressure
50KPa | Initial pneumatic pressure
80KPa | Applicable
ships
tonnage
(T) |
Body
Weight (Kg) | R (KN) | GEA (KJ) | Body
Weight (Kg) | R (KN) | GEA (KJ) |
| 0.5*1.0 | 25 | 64 | 6 | 25 | 83 | 8 | 50 |
| 0.6*1.0 | 32 | 74 | 8 | 32 | 96 | 11 | 50 |
| 1.0*1.5 | 80 | 182 | 32 | 80 | 235 | 44 | 100 |
| 1.0*2.0 | 100 | 257 | 45 | 125 | 335 | 63 | 200 |
| 1.2*2.0 | 120 | 297 | 63 | 165 | 386 | 86 | 300-500 |
| 1.35*2.5 | 165 | 427 | 102 | 226 | 554 | 140 | 300-500 |
| 1.5*3.0 | 315 | 597 | 153 | 370 | 751 | 211 | 1000 |
| 1.7*3.0 | 405 | 639 | 191 | 436 | 830 | 263 | 1000 |
| 2.0*3.5 | 590 | 875 | 308 | 632 | 1138 | 424 | 3000 |
| 2.5*4.0 | 1050 | 1381 | 663 | 1110 | 1815 | 925 | 10000 |
| 2.5*5.5 | 1333 | 2019 | 943 | 1410 | 2653 | 1317 | 10000 |
| 3.0*5.0 | 1880 | 2104 | 1210 | 2155 | 2709 | 1571 | 10000above |
| 3.0*6.0 | 2160 | 2583 | 1485 | 2470 | 3292 | 1888 | 10000above |
| 3.3*4.5 | 2020 | 1884 | 1175 | 2300 | 2476 | 1640 | 10000above |
| 3.3*6.5 | 2700 | 3015 | 1814 | 3080 | 3961 | 2532 | 10000above |
Marine Yokohama Fender in using
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