Port Rubber fenders are widely used nowdays for boat & ship, here below we introduce their construction features.
Port rubber fenders, whose basic body construction consists of outer rubber layers, synthetic-cord-reinforced rubber layers and inner rubber layers, are kind of cylindrical airbags with hemispherical heads at both ends, all of these are vulcanized together, and then compress air inside to enable it to float on the water. So port rubber fenders have become an ideal ship protection medium used extensively by large tankers, LPG vessels, ocean platforms, bulk carries and loating structures, large docks, harbor and wharfs.
1. Outer Rubber
The outer rubber layer that covers the outside of fender protects the cord layers and the inner rubber from abrasion and other external forces. This compound has sufficient tensile and tear strength to with stand any weather condition and hard usage. Standard color is black, but other colors suchas grey and creamy white are available on request.
2. Inner Rubber
The liner of a rubber membrane seals the pressurized air inside the fenders.
3. Synthetic-tire-cord layer for reinforcement
The reinforcement cord layers, which are made of synethetic-tire-cord commonly used in tires, are arranged at ideal angels to hold the internal pressure and to distribute the stress evenly providing strong efficient reinforcement.
4. Beading Ring
A steel ring is placed at one end(or both ends)of the fender and holds the end of cord layers.
5. Flange
A steel flange is mounted on the fender, to which an air valve or sagety valve can be adapted.
6. Safety Valve
Fenders of diameter 2500mm and larger shll be equipped with a safety valve for releasing excess internal pressure when the fenders are over-compressed accidentally. Fenders which are smaller than 2500mm in diameter, can be equipped with a sagety valve if required.
7. Metal Accessories
All the relevant metal accessories of port rubber fenders, include shackles, towing rings, swivels, chain net, are made of stainless steel, and hot dipped galvanized, which are resistant for sea water corrosion.
8. Chain and Tire Nets
Almost all floating port rubber fenders are protected by chain and tire net.
The purpose of the chain and tire net is to protect protrusions such as rough faced quay walls, to distribute sheer forces along the length of the chain net and to prevent the fender body from having to absorb them.
Evergreen have the widest possible experience of the varying nees of a protective net and can offer the followings:
-Lightweight nets to meet ship's crane and davit limiations
-Heavy duty nets to cope with harsh sea conditions and high snatch loads
-Double nets to offer stand-off options
-Non marketing tire nets for both navy and cruise type applications
-Rope nets for ultra lightweight applications
-Stainless steel nets for non magnetic requirements
All Evergreen-Maritime nets are designed with easy maintenance in mind. The net is built segmentally so it remains both easy and cost effective to repair a specific area of the net sustain damage.
){kind=link}