Large diameter pipeline selection: carat pipe, steel belt pipe advantages and disadvantages inventory

In scenarios such as municipal drainage, water conservancy irrigation, and industrial pipelines, the selection of large-diameter plastic pipes is directly related to engineering quality and long-term operation and maintenance costs. Among them, carat pipes and steel belt pipes are two types of products that are currently widely used. Here is an objective inventory of the advantages and disadvantages of both.

The carat tube adopts the hot winding molding process, the core advantage is that the ring stiffness is high, it can adapt to complex geological environment, and the anti-settlement and anti-external pressure ability is excellent; the inner wall is smooth and flat, the fluid resistance is small, and the drainage and transportation efficiency is high; its own weight is relatively light, and the difficulty of transportation and on-site installation is low. The main disadvantages are the high complexity of the production process, the short length of the single-stage finished product, and the on-site splicing process is more; the flatness of the construction base surface is required. If the splicing and sealing treatment is not in place, it is easy to cause hidden dangers of leakage; the later local damage is difficult to repair, and the whole section often needs to be replaced.

The steel strip pipe uses the steel strip as the intermediate reinforcement layer, which combines the corrosion resistance of plastics with the high strength of steel, and the ring stiffness is stable and the compliance rate is high; the single section length is long, and the number of splicing interfaces is small, which can effectively improve the construction efficiency; the low temperature resistance is excellent, and it is suitable for the engineering needs of cold regions in the north. The disadvantage is that the steel strip layer is prone to corrosion. If the outer plastic protective layer is damaged, it will directly affect the overall service life of the pipeline; its own weight is greater than the carat tube, and the cost of transportation and hoisting is high; the inner wall roughness is slightly higher, and the long-term use is prone to fouling, which affects the transportation efficiency.

When selecting a model, it is necessary to combine comprehensive considerations such as engineering scenarios, geological conditions, and budget costs to select suitable products as needed.