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Polyurethane anti-corrosion steel pipes are mainly composed of three parts: working steel pipes, insulation layers, and protective layers. The working steel pipe can be seamless steel pipe, spiral welded pipe or straight seam welded pipe according to the medium demand. The outer layer uses high-density polyethylene or glass fiber reinforced plastic as the protective shell, and the middle is filled with rigid polyurethane foam to form a thermal insulation layer. Some products are also equipped with leakage alarm lines to monitor the pipeline status in real time. Its structural design balances mechanical strength and corrosion resistance, making it suitable for use in complex environments.
keyword Polyurethane anti-corrosion steel pipe Category Anti-coating pipe name Related products Get a quotePolyurethane anti-corrosion steel pipe
Structure and composition of polyurethane anti-corrosion steel pipe products
Polyurethane anti-corrosion steel pipes are mainly composed of three parts: working steel pipes, insulation layers, and protective layers. The working steel pipe can be seamless steel pipe, spiral welded pipe or straight seam welded pipe according to the medium demand. The outer layer uses high-density polyethylene or glass fiber reinforced plastic as the protective shell, and the middle is filled with rigid polyurethane foam to form a thermal insulation layer. Some products are also equipped with leakage alarm lines to monitor the pipeline status in real time. Its structural design balances mechanical strength and corrosion resistance, making it suitable for use in complex environments.
Performance advantages and application areas
This product has excellent insulation, anti-corrosion, waterproof, and impact resistance properties, which can reduce energy loss and extend pipeline life to more than 50 years. Widely used in fields such as petroleum, natural gas, urban heating, water supply systems, chemical and power industries, especially suitable for underground or underwater environments, with convenient construction and no need for additional pipe trenches, and significant comprehensive economic benefits.
Production process and technical characteristics
The polyurethane anti-corrosion steel pipe is injected with polyurethane foam at one time by high-pressure foaming technology, and the coating compactness is combined with centrifugal casting, electrostatic spraying and other processes. The 3PE anti-corrosion production line enhances the anti-corrosion effect through a composite structure of epoxy powder bottom layer, adhesive intermediate layer, and polyethylene surface layer. Some manufacturers introduced a new thermal insulation scheme composed of aerogel felt and polyurethane to further improve the thermal insulation performance.
Market Supply and Service System
The main production bases in China are located in Yanshan and other places in Hebei Province. Enterprises such as Hebei Youjun and Cangzhou Guanghui have large-scale production lines and can customize various specifications of products with diameters ranging from 219-3620mm. The manufacturer provides a full process service from anti-corrosion treatment, quality testing to installation guidance, and has established a national sales network and after-sales system to meet the needs of oil, gas, fire and other engineering projects.
Industry standards and quality assurance
The product complies with national standards such as GB/T 23257 and SY/T 0413, and has passed X-ray inspection, magnetic particle testing, and hydrostatic pressure testing for reliability. Some enterprises have obtained water related hygiene certification and use IPN8710 drinking water grade anti-corrosion coating on the inner wall, which meets environmental and safety requirements and is widely used in centralized heating and municipal engineering.
ADD：Chengnan Industrial Development Zone, Yanshan County, Hebei Province
Domestic phone number：0086-317-6689999
International call：0086-317-6165555
E-mail:9905791@qq.com
