Haotian Brand Hydraulic Hose Protection SleeveFeatures and Applications

　1.Safe and environmentally friendly, protecting workers' health
　　Alkali-free fiberglass has characteristics of high tensile strength, no wrinkling or breaking, resistance to vulcanization, smokeless, halogen-free, non-toxic, pure oxygen non-flammable, and good insulation. After curing with organic silicone, its safety and environmental protection performance is further enhanced, effectively protecting workers' health and reducing the incidence of occupational diseases. Unlike asbestos products, which pose great harm to human health and the environment.
　2.Excellent high-temperature resistance
　　The surface of the high-temperature sleeve contains both 'organic groups' and 'inorganic structures' in its silicone structure. This unique composition and molecular structure allow it to possess the characteristics of organic materials and the functions of inorganic materials. Compared with other polymer materials, its outstanding feature is its high-temperature resistance. With a Si-O (Si－O) bond as the main chain structure, the bond energy of the C-C bond is 82.6 kcal/mole, while the bond energy of the Si-O bond in organic silicone is 121 kcal/mole, so its thermal stability is high. Under high temperatures (or radiation), the chemical bonds of the molecules do not break or decompose. Organic silicone can withstand both high and low temperatures and can be used over a wide temperature range. Both chemical properties and physical mechanical properties change little with temperature. 
　3.Anti-splash, multiple protections
　　In the smelting industry, the medium temperature inside electric furnaces is extremely high, making it easy to cause high-temperature splashes (the same applies to the electric welding industry). After cooling and solidifying, it forms slag on pipelines or cables, which can harden and eventually embrittle and fracture the rubber outer layer of the pipes or cables. This can damage unprotected equipment and cables. The high-temperature sleeve coated with multiple layers of silicone can achieve multiple safety protections, with high-temperature resistance up to 1300 degrees Celsius, effectively blocking splashes of molten iron, molten copper, molten aluminum, and other high-temperature molten materials, preventing damage to surrounding cables and equipment.
　4.Insulation, energy-saving, radiation resistance
　　In high-temperature workshops, many pipelines, valves, or equipment have very high internal temperatures. Without protective materials, it can easily cause burns to personnel or heat loss. The Haotian high-temperature sleeve has better thermal stability than other polymer materials and possesses radiation resistance and insulation effects, preventing accidents, reducing energy consumption, and preventing the heat of the medium inside the pipeline from being directly transferred to the surrounding environment, which can cause excessive workshop temperatures and save cooling costs. 
　5.Moisture-proof, oil-proof, weather aging resistant, pollution resistant, extending equipment lifespan
　　The high-temperature sleeve has strong chemical stability, and organic silicone does not react to oil, water, acids, and bases. Up to 260 degrees Celsius, it can be used for a long time without aging, with a service life of several decades in natural environments, effectively protecting pipelines, cables, and equipment in these situations, greatly extending their lifespan. 
　6.Ozone resistant, voltage resistant, arc resistant, corona resistant
　　Due to the organic silicone coating on the surface, its main chain is -Si－O－, which makes it difficult to be decomposed by ultraviolet light and ozone. The high-temperature sleeve has good electrical insulation properties, with dielectric loss, voltage resistance, arc resistance, corona resistance, volume resistivity, and surface resistivity ranking among the best in insulating materials. Moreover, their electrical performance is minimally affected by temperature and frequency. Therefore, they are stable electrical insulating materials widely used in the electronics and electrical industries.
　7.Flame retardant, reducing fire occurrence and spread speed
　　If the medium transported inside the pipeline is flammable or toxic, a leak can easily cause fire or casualties; cables often catch fire due to localized high temperatures. The high-temperature sleeve is made of extremely heat-resistant fiberglass woven, with the surface silicone rubber containing appropriate flame retardants and other special materials, giving it excellent flame retardancy. Even if a fire occurs, it can prevent the spread of flames and still protect the internal pipelines intact for a longer time, providing ample time for the rescue of data, documents, and other important information.  7 Common Areas of Use:

　　High-temperature areas in steel, smelting, shipbuilding, chemical, and other industries; cables and fluid pipelines in heating areas; cables for rolling mills, oil pipes, saw-cut edge cables; generator sets, electrical voltage equipment, large buildings, hydraulic systems, automotive wire harnesses, and exhaust pipes, etc.                                                                       8 Test Items and Results

　　High-temperature bending test
　　After heating in a constant temperature oven at 260℃ for 48 hours, there is no aging cracking or delamination of the coating layer on the surface.
　　Low-temperature bending test
　　After heating in a constant temperature oven at -70℃ for 1 hour, there is no cracking or delamination of the coating layer on the surface.
　　Coating test
　　After continuous testing in a constant temperature oven, there is no surface peeling or dissolution.
　　Combustion test
　　Flame-retardant, self-extinguishing, and no spontaneous combustion (complies withUL 'VW-1' and CSA 'HFS' tests)
　　Temperature resistance test 
　　( 2000hr ) 260 ℃ heating test normal with no abnormalities
　　( 30sec ) 1200℃ heating test fiberglass intact
　　Flame retardancy test 
　　Burning speed not less than 45s/25mm
　　---- SRG-1-7kv SRG-1-4kv，(the motor insulation grade can reach higher thanH levelC level)
　　Normal low insulation breakdown voltage 7.0 kv / min 4.0 kv / min
　　Normal average insulation breakdown voltage 10.0 kv / min 7.0 kv / min