1. Understanding fireproof sleeve
Fireproof sleeve is moisture-proof, oil-proof, resistant to climate aging, pollution-resistant, and can extend the service life of equipment. Fire sleeves have strong chemical stability. The organic silicone does not react with oil, water, acids, and alkalis. They can be used long-term within 260℃ without aging. Under natural conditions, they can last for decades and effectively protect pipes, cables, and equipment in these situations, greatly extending their service life.
2. Choosing the right fireproof sleeve
Before selecting a fireproof sleeve, it is important to understand the performance advantages of the product and the manufacturing strength of the producer.
Fireproof sleeve is made of alkali-free glass fiber or high-loft glass fiber woven into tubes, and then coated with organic high-temperature oxidation-resistant iron-red silicone and processed at high temperature. Compared with ordinary insulation sleeves, fire sleeves are heavier and have excellent fire resistance, flame-retardant, thermal insulation, heat preservation, insulation, acid and alkali resistance, and aging resistance. They can withstand molten metal splashes, strong heat sources, and flames and are mainly used in high-temperature environments such as steel plants, smelters, glass plants, rail transit, large transformer substations, and for protecting hydraulic hoses, wires and cables, metal hoses, and various pipeline routes in harsh environments. They are an environmentally friendly and pollution-free pipeline protection sleeve.
Firstly, judging from the appearance, good fire sleeves are smooth to the touch, without lumps, peeling, with even glass fiber weaving and silicone coating, and no granules on the material's surface. The material itself has no smell, and fire sleeves with any odors are of poor quality. The outer layer of the sleeve is rust red in color, and it has good elasticity, being able to be stretched 1.3 times horizontally.
For a more in-depth assessment, it is necessary to use high-temperature equipment testing or flame spray gun testing. The fire sleeves can be used long-term at temperatures below 560℃, and during the 1650℃ high-temperature destruction test can continue to be used for 20 to 90 seconds, after which the surface silicone carbonizes, and the glass fiber remains intact, making it useful to deal with emergencies and extend rescue time. The use of fire sleeves not only insulates electricity but also isolates it, isolates heat, isolates oil stains, and does not pose any threat to the environment, making them a better alternative to harmful products such as asbestos.