Trellex Hose System

Rubber off ers superior wear resistance when handling abrasive rocks and sands, as well as slag and other materials. The Trellex Hose System is used in sand, lime, and glass plants, in quarries, in coal preparation and power plants, as well as in steel and cement works. Rubber absorbs energy Rubber is an elastomer. While steel and ceramics present a rigid surface to the particles, rubber has the advantage of resilience. The kinetic energy of the slurry generates deformations and cracks on a rigid pipe. In contrast, the Trellex Hose absorbs the load by yielding, and then returning to its original form. Vibrations from e.g. a pump are dampened. Appropriate conditions The angle at which particles strike a surface is decisive for the process of wear. Both laboratory tests and practical experience show that rubber is more resistant than other materials when impacting angle is less than 5°, or greater than 50°. In slurry lines, the angle of incidence is close to 0°. Process water does not corrode rubber, but instead acts as a lubricant, further decreasing erosion. Trellex Hose are ideally suited for hydraulic transport of abrasive rocks and sands as well as for use in loops in tailing lines to compensate for thermal expansion and contraction of steel pipes. Supplied in two types Trellex Slurry Hose for hydraulic pressure and suction service of abrasive slurries containing particles of up to 20 mm in size, and Trellex Bulk Hose for pneumatic service of abrasive powders and chips of up to 30 mm in size. Trellex Slurry Hose and Trellex Bulk Hose are both reinforced with polyester cord and a fully embedded spiral of galvanized steel wire. The safety factor against bursting is 3.2 times the working pressure. A smooth outer cover with a fabric texture ensures good resistance to wear and weather. Thick, smooth-walled wear tubes provide low resistance to fl ow and extremely long life. Together with the Trellex Coupling and the Trellex Gasket, these hoses form a highly reliable system that retains full fl ow area with no turbulence at the joints. Spot wear and leaks are eliminated. Utilizing the Trellex Hose System to its full potential will keep your plant cleaner and further reduce costs by increasing mill availability. Limiting the use to bends only will also limit the extent to which the Trellex Hose System can work to your advantage. Trellex Slurry Hose for hydraulic applications has a NR wear tube of Trellex 40 rubber. The hose withstands operating temperatures of up to 60-70° C. Trellex Bulk Hose for pneumatic applications has a SBR wear tube of Trellex 60 rubber. The hose withstands operating temperatures of up to 70-80° C. Sizes Ø 44-127 mm are supplied in coiled lengths of 20 m. Larger sizes in straight lengths of 10 m. Both Trellex Slurry and Trellex Bulk Hose are available without steel wire spiral, for gravity service only.

For more information on Trellex Hose System talk to Mercia Flexibles