Do you know the characteristics and application of flame retardant sleeve?

1. Safety and environmental protection to protect the health of workers.

Alkali-free glass fiber itself has the characteristics of strong tensile force, no wrinkle and breakage, vulcanization resistance, smokeless, halogen-free and nontoxic, pure oxygen is nonflammable, and good insulation. After being cured by organic silica gel, it strengthens its safety and environmental protection performance, effectively protects workers’ health and reduces the incidence of occupational diseases. Unlike asbestos products, it is extremely harmful to human body and environment.

2. Excellent high temperature resistance

The silicone structure on the surface of fireproof sleeve contains both “organic group” and “inorganic structure”. This special composition and molecular structure make it combine the characteristics of organic matter with the functions of inorganic matter. Compared with other polymer materials, its most outstanding is its high temperature resistance. With silicon-oxygen (Si-O) bond as the main chain structure, the bond energy of C-C bond is 82.6 kcal/mol, and that of Si-O bond is 121 kcal/mol in silicone, so it has high thermal stability, and the chemical bonds of molecules do not break or decompose at high temperature (or under radiation irradiation). Silicone can not only resist high temperature, but also low temperature, and can be used in a wide temperature range. Both chemical properties and physical and mechanical properties change little with temperature.

3. Splash prevention and multiple protection

In the smelting industry, the temperature of the medium in the electric heating furnace is extremely high, which is easy to form high-temperature splash (the same is true in the electric welding industry). After cooling and solidification, slag is formed on the pipeline or cable, which will harden the rubber on the outer layer of the pipeline or cable and eventually embrittle and crack. Furthermore, unprotected equipment and cables are damaged, and multiple safety protections can be realized through a plurality of fireproof sleeves coated with silica gel, and the highest temperature resistance can be as high as 1,300 degrees Celsius, which can effectively prevent the splashing of high-temperature melts such as molten iron, molten copper and molten aluminum, and prevent the surrounding cables and equipment from being damaged.

4. Thermal insulation, energy saving, radiation resistance.

In the high temperature workshop, the internal temperature of many pipes, valves or equipment is very high. If the protective material is not coated, it is easy to cause personal burns or heat loss. The fireproof sleeve has better thermal stability, radiation resistance and thermal insulation than other polymer materials, which can prevent accidents and reduce energy consumption, and can also prevent the heat of the medium in the pipeline from being directly transferred to the surrounding environment, so that the temperature of the workshop is too high and the cooling cost is saved.

5. Moisture-proof, oil-proof, weather-aging-proof and pollution-proof to prolong the service life of the equipment.

Fireproof casing has strong chemical stability, and it can not react to oil, water, acid and alkali in silicone. It can be used for a long time at 260℃ without aging, and its service life in natural environment can reach several decades, which can protect pipelines, cables and equipment in these occasions to the maximum extent and greatly prolong its service life.

6. Ozone resistance, voltage resistance, arc resistance and corona resistance.

Because the surface is coated with organic silica gel, its main chain is-Si-O-,and there is no bond, so it is not easy to be decomposed by ultraviolet light and ozone. Fireproof sleeves have good electrical insulation performance, and their dielectric loss, voltage resistance, arc resistance, corona resistance, volume resistance coefficient and surface resistance coefficient are among the best among insulating materials, and their electrical properties are little affected by temperature and frequency. Therefore, they are a kind of stable electrical insulating materials, which are widely used in electronic and electrical industries.

7. Flame-retardant, reducing fire incidence and spreading speed.

If flammable or toxic medium is transported in the pipeline, it is easy to cause fire or casualties when leakage occurs; Cables often burn due to local high temperature; The fireproof sleeve is woven with extremely high-temperature resistant glass fiber, and the silica gel on the surface is added with special raw materials such as proper flame retardant, which makes it have excellent flame retardancy. Even if a fire breaks out, it can prevent the fire from spreading, and it can still protect the internal pipeline intact for a long time, which provides possible and sufficient time for the rescue of important information such as data and materials.

8. Convenient installation and use

When installing the thermal fireproof sleeve, it is not necessary to stop the equipment and remove the hose and cable. Another advantage is that it can be installed on site in the factory to ensure the correct fit and structural integrity.


Post time: Mar-09-2023