Large diameter polyurethane insulation steel pipe manufacturer

The anti-corrosion and insulated steel pipes mainly produced by the company are widely used in projects such as oil, natural gas, tap water, chemical pipelines, electric power casings, sewage treatment, steel structures, centralized heating, thermal power generation and other projects. They can also be used in projects such as building structures, bridge components and foundation piling. The company also produces various anti-corrosion coatings. The main products include polyurethane, polyethylene anti-corrosion coating series, silicone high-temperature resistant coating, acid series anti-corrosion coating, etc. The coating film has excellent comprehensive performance such as oil resistance, acid resistance, alkali resistance, salt, benzene and other chemical media, as well as wear resistance and moisture resistance. Produces various anti-corrosion and insulated steel pipes and directly buried insulated pipes, which are widely used in liquid gas transportation pipe networks, chemical pipeline insulation projects, petrochemical central heating networks, central air-conditioning ventilation pipes, municipal projects, etc. Directly buried insulated pipe is a directly buried prefabricated insulated pipe with good thermal insulation performance, safety, reliability and low engineering cost. Effectively solves the problems of thermal insulation, sliding lubrication and waterproofing of exposed pipe ends of prefabricated directly buried thermal insulation pipes for high temperature heat transfer in urban central heating. Directly buried insulated pipes not only have advanced technical and practical performance that are unmatched by traditional trench and overhead pipes, but also have significant social and economic benefits and are a powerful measure for heating and energy saving. The use of direct buried heating pipeline technology for prefabricated directly buried insulated pipes marks that the development of China's heating pipeline technology has entered a new starting point. The insulation pipe is composed of a steel pipe, a fiberglass inner sheath, and a fiberglass outer shell. It is characterized by: it also includes a high-temperature-resistant insulation layer, a lubricating layer, an elastic seal. This utility model effectively solves the problem of high-temperature heat transfer in urban centralized heating. It uses prefabricated direct-buried insulation. Pipe insulation sliding lubrication and waterproofing of exposed pipe ends. Directly buried insulated pipes have a good anti-corrosion effect because the polyurethane rigid foam insulation layer is tightly bonded to the outer skin of the steel pipe to isolate air and water from penetrating. At the same time, its foaming holes are closed and have very little water absorption. Both high-density polyethylene shell and fiberglass shell have good anti-corrosion insulation and mechanical properties. Therefore, the outer skin of the working steel pipe is difficult to be eroded by outside air and water. As long as the internal water quality of the pipeline is treated well, according to foreign data, the service life of directly buried insulated pipes can reach more than 10 years, which is ~ times longer than the service life of traditional trench laying and overhead laying. In short, the directly buried insulated pipe not only has advanced technical and practical performance that is difficult to match with traditional trench and overhead pipes, but also has significant social and economic benefits and is a powerful measure for heating and energy saving. The adoption of directly buried heating pipeline technology marks that the development of China's heating pipeline technology has entered a new starting point. Good anti-corrosion insulation performance and long service life. Prefabricated polyurethane directly buried insulated pipes can play a good anti-corrosion role because the polyurethane rigid foam insulation layer is tightly bonded to the outer skin of the steel pipe, which isolates the infiltration of air and water. At the same time, its foaming holes are closed and have very little water absorption. Both high-density polyethylene shell and fiberglass shell have good anti-corrosion insulation and mechanical properties. Therefore, the outer skin of the working steel pipe is difficult to be eroded by outside air and water. As long as the water quality inside the pipeline is well treated, according to foreign data, the service life of prefabricated polyurethane directly buried insulated pipes can reach more than 10 years, which is ~ times longer than the service life of traditional trench laying and overhead laying.
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