[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product -] of the most commonly used types of duct into galvanized sheet steel duct, inorganic fiberglass duct composite fiberglass duct board. Three basic characteristics of galvanized sheet metal duct Duct: One of the earliest use of the duct, made of galvanized sheet steel production, for small amounts of moisture transport gas general, there are rust, no insulation and consumption sound capabilities, fabrication and installation of the long-cycle characteristics. Inorganic fiberglass duct: newer duct type, the use of glass fiber reinforced inorganic materials, fire burn, corrosion-resistant, heavy weight, hardness, but more brittle deformation affected by weight crisp crack, no insulation and noise elimination performance long, making installation cycle. Composite fiberglass duct board: The latest type of duct recent years, with the centrifugal glass plate as the substrate pipes, complex glass cloth, aluminum foil moisture outside the complex fabric (imported sheet is coated with a thermal black acrylic polymer inside the ventilation pipes, outside layer is thinning pattern cloth / aluminum foil / kraft paper), after the fire with a special adhesive compound dry, and then by cutting, slotting, bonded reinforcement process and made using special sealants, pressure sensitive tape, thermal tape connection seal, according to the duct cross-section size, air pressure and then using the appropriate size of the reinforcement measures. With a silencer, insulation, fire, moisture, air leakage is small, light weight, easy construction, saving installation space, long life, economical advantages. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - inorganic glass steel ventilation ducts] 1, lightweight, high strength: density inorganic glass steel ventilation ducts for steel 1/4 strength and hand lay-strength polyester fiberglass approximate to meet the strength and stiffness of the various types of ventilation tube design requirements. 2, water, corrosion: inorganic glass steel ventilation ducts good water resistance, softening coefficient of 0.8 to 0.9 exhaust pipe, no rust, long service life. After the galvanized metal duct using 3 to 5 years will rust, life inorganic glass steel ventilation ducts more than three times the length of galvanized iron. 3, good heat resistance, fire resistance: good heat resistance inorganic glass steel ventilation ducts, and can be used at 300 ℃ temperature conditions. Its fire performance is better, by the National Fire Protection Building Materials Quality Inspection Center, inorganic glass steel ventilation ducts or genus A grade material. Therefore, heat resistance and fire resistance inorganic glass steel ventilation ducts are better than polyester fiberglass pipe. 4, forming convenient: inorganic glass steel ventilation ducts can lay hands can also be mechanized production of sheet metal forming and then cutting the adhesive. Production process without harmful gas emissions, do not pollute the environment, does not affect the health of workers. 5. Easy installation: inorganic glass steel ventilation ducts into insulation sandwich pipe insulation tubes and not two single-layer structure. Interlayer insulation can be made good time in the factory, on-site installation can only locate a total of flange pipe, unlike galvanized metal duct that, after duct installation, they would go in the metal outer coating insulation layer, increasing the on-site construction difficulty, extension of time. Inorganic glass steel ventilation ducts can also be spliced ??at the construction site of 2 to 3 tubes, making it into a whole long tube, once lifting, saving time and labor. 6, abundant raw material resources: abundant raw material resources inorganic glass steel ventilation ducts, magnesium production and reserves in the world. Not only can ensure long-term supply of magnesium chloride, and cheap. Total plate flange pipe, Tianjin Jinzhong Ji ventilation ducts (certified), provided by the Tianjin Tianjin Jinzhong Ji HVAC duct purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) is a leader in Tianjin, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the group leadership with the staff warmly welcome all inquiries negotiations to create a better future for the base.