Haotian Brand Stainless Steel Metal Flexible Hose Protective SleeveFeatures and Applications

　1.Safe and environmentally friendly, protecting workers' health
　　Alkali-free fiberglass itself has extremely strong tensile strength, does not wrinkle or break, is resistant to vulcanization, produces no smoke, halogen-free, non-toxic, non-combustible in pure oxygen, and has good insulation properties. After being cured with organic silicone, its safety and environmental performance are 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'. This special composition and molecular structure give it the characteristics of organic materials and the functionalities of inorganic materials. Compared to other polymer materials, its outstanding feature is high-temperature resistance. With a silicon-oxygen (Si－O) bond as the main chain structure, the bond energy of the C-C bond is82.6 kcal/mole, while the bond energy of the Si-O bond in organic silicon is121 kcal/mole, resulting in high thermal stability. Under high temperatures (or radiation exposure), the chemical bonds of the molecules do not break or decompose. Organic silicon can withstand both high and low temperatures and can be used over a wide temperature range. Both its chemical and physical mechanical properties change little with temperature. 
　3.Splash-proof, multiple protection
　　In the smelting industry, the medium temperature inside electric furnaces is extremely high, making it easy to form high-temperature splashes (the same applies to the welding industry). After cooling and solidification, it can form slag on pipelines or cables, causing the rubber on the outer layer of the pipelines or cables to harden and ultimately become brittle and crack. This damages unprotected equipment and cables. The high-temperature sleeve coated with multiple layers of silicone can achieve multiple safety protections, with a high temperature resistance of up to1300 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 and heat preservation, energy saving and consumption reduction, radiation resistance
　　In high-temperature workshops, many pipelines, valves, or equipment have extremely high internal temperatures. Without protective materials, it is easy to cause burns to personnel or heat loss. The Haotian high-temperature sleeve has better thermal stability than other polymer materials and functions in radiation resistance and heat preservation, preventing accidents, reducing energy consumption, and preventing the heat of the medium inside the pipeline from being directly transmitted to the surrounding environment, which could lead to excessive workshop temperatures and save cooling costs. 
　5.Damp-proof, oil-proof, climate aging resistant, pollution resistant, extends equipment lifespan
　　The high-temperature sleeve has strong chemical stability and does not react with oil, water, acids, or alkalis in organic silicone. Within260℃, it can be used long-term without aging, with a lifespan of several decades in natural environments, greatly protecting pipelines, cables, and equipment in these situations and significantly extending their lifespan. 
　6.Ozone resistant, voltage resistant, arc resistant, corona resistant
　　Due to the silicone coating on the surface, its main chain is –Si－O－, making it resistant to decomposition by ultraviolet light and ozone. The high-temperature sleeve has excellent electrical insulation properties, ranking among the top in dielectric loss, voltage resistance, arc resistance, corona resistance, volume resistivity, and surface resistivity among insulating materials, with its electrical performance being minimally affected by temperature and frequency. Therefore, it is a stable electrical insulating material widely used in the electronics and electrical industries.
　7.Flame retardant, reduces the incidence and spread of fires
　　If the pipeline conveys flammable or toxic media, leaks can easily lead to fires or casualties; cables often catch fire due to localized high temperatures. The high-temperature sleeve is made of extremely heat-resistant glass fiber, with the surface silicone incorporating appropriate flame retardants and other special materials, giving it excellent flame retardancy. Even in the event of a fire, 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 important data and information.  7 Common Usage Areas:

　　High-temperature and heating areas in steel, metallurgy, shipbuilding, chemical, and other industries; cables, fluid pipelines, rolling mill cables, oil pipelines, cutting edge cables, generator sets, electrical voltage equipment, large buildings, hydraulic systems, automotive wiring harnesses, and exhaust pipes, etc.                                                                       8 Testing Items and Results

　　High-temperature bending test
　　After heating in a constant temperature furnace at260℃ for48 hours, there is no aging, cracking, or delamination of the coating observed.
　　Low-temperature bending test
　　After heating in a constant temperature furnace at-70℃ for1 hour, there is no cracking or delamination of the coating observed.
　　Coating test
　　No surface peeling or dissolution observed after continuous use in a constant temperature furnace.
　　Burning test
　　Flame-retardant self-extinguishing with no self-ignition phenomenon(compliant withUL 'VW-1' and CSA 'HFS' tests)
　　Temperature resistance test 
　　( 2000hr ) 260 ℃ heating test normal with no abnormalities
　　( 30sec ) 1200℃ heating test glass fiber intact
　　Flame retardancy test 
　　Burning rate not less than45s/25mm
　　---- SRG-1-7kv SRG-1-4kv，(Motor insulation class can reach higher thanH classC class)
　　Normal low insulation breakdown voltage7.0 kv / min 4.0 kv / min
　　Normal average insulation breakdown voltage10.0 kv / min 7.0 kv / mi