Protection of buried steel casing pipe insulation corrosion grade shall be determined by the local soil corrosion levels. When the soil buried insulating pipe corrosive soil is high grade, corrosion resistant grade should be considered special strengthen the level, when the soil corrosivity in class, the corrosion level should be considered to strengthen the level, when the soil level is low corrosivity prefabricated polyurethane insulation buried pipe manufacturers, corrosion level should consider the general level. So be sure to find out the design level of pipeline corrosion deposition section of the soil, in order to optimize the corrosion level. Cathodic protection of buried pipe insulation polyurethane buried pipe insulation in metal corrosion processes, electrochemical protection method. With other buried insulating pipe corrosion process is different is that it is protected by the metal body to the applied current, thereby enabling the electrode potential shifted negatively protect the metal body, the metal lost by the atoms become ions state spontaneous attitude trend, thus inhibit corrosion is fundamental. However, this process must be buried polyurethane insulation tubes offer in the electrolyte, thus very suitable for buried pipes with cathodic protection. Cathodic protection of buried pipe insulation coating itself complement each other prefabricated polyurethane insulation buried pipe prices, there is a coating of cathodic protection can greatly reduce the current consumption, but can make up for lack of cathodic protection coating integrity aspects, thereby to achieve the perfect combination of safety and economy, it is now recognized as the best anti-corrosion program. Introduction to use composite insulation pipe insulation pipe for transporting a variety of media in the range of -150 ℃ -50 ℃, it is widely used in central heating, cooling and hot oil transport and Nuanshi, cold storage, coal, petroleum, chemical and other industry cold insulation works. Polyurethane buried pipe insulation _ Emerging Albert (certified) _ polyurethane buried pipe insulation provided by the large emerging Albert County corrosion insulation Engineering Limited. Albert County of emerging anti-corrosion insulation Engineering Co., Ltd. (www.juanzhiwakecj.com) Hebei Langfang, insulation, insulation materials, leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Albert corrosion insulation works in the emerging leadership with the staff warmly welcome all inquiries negotiations to create the new Albert corrosion insulation works better future.