In the construction of infrastructure projects, the selection of materials directly affects the long-term safety and functionality of the project. Especially in pipeline systems, spiral welded pipes, with their outstanding structural performance and wide applicability, have become an indispensable component in key engineering projects such as water and gas transmission. To further enhance their durability and environmental adaptability, the 3LPE coated pipe technology has emerged, providing stronger engineering protection for the pipeline system.
Spiral welded pipe and 3LPE coating: A dual-protective structural system
Spiral welded pipes are widely used in various pressure pipeline projects due to their excellent mechanical properties and flexible size adaptability. However, in complex geological conditions and chemical medium environments, the external anti-corrosion of the pipes becomes the key to extending their service life. The 3LPE coating (three-layer polyethylene anti-corrosion coating) technology has emerged as an efficient anti-corrosion solution under this circumstance. This technology, through a composite structure of an epoxy powder base layer, a adhesive intermediate layer, and a polyethylene outer layer, provides excellent anti-corrosion, impact resistance, and aging resistance for spiral welded pipes, and is particularly suitable for long-distance transportation pipelines in underground, underwater, and highly corrosive environments.
From production to protection: The advantages of integrated manufacturing
As a leading enterprise in the field of spiral welded pipe manufacturing in China, Cangzhou Spiral Steel Pipe Group Co., Ltd. has been dedicated to the research and production of spiral steel pipes and their coating products since its establishment in 1993. The company is located in Cangzhou City, Hebei Province, covering an area of 350,000 square meters, with an annual production capacity of 400,000 tons and an annual output value of 1.8 billion yuan. Based on the production of high-quality spiral welded pipes, we also simultaneously optimize the process and control the quality of 3LPE coated pipes (3LPE Coated Pipes), achieving integrated manufacturing from pipe body formation to external anti-corrosion treatment, ensuring that the products have reliable performance throughout their entire life cycle.
Engineering protection is not limited to pipelines alone.
In various infrastructure construction projects, the reliability of pipelines directly affects the overall operational safety and maintenance costs of the projects. The 3LPE coated pipeline not only extends the service life of the pipeline but also reduces the risk of leakage and environmental hazards caused by corrosion. We are committed to providing customers with coated pipeline products that meet international standards and are suitable for various engineering environments through continuous technological improvements and strict quality control systems.
In the future, Cangzhou Spiral Steel Pipe Group will continue to focus on material technology and manufacturing processes, promoting the application of 3LPE coating pipeline technology in more fields, and providing solid and reliable pipeline solutions for the sustainable development of global infrastructure.
Post time: Jan-28-2026