HDPE double-wall corrugated pipe is high density polyethylene as the main raw material, through the two method preparation and molding process. The first step has been produced by the extruder complete shrinkage, density, high strength type "T" slab; The third use of precast slab on the pipe forming machine winding and welding into pipe lining, at the same time, galvanized steel strip rolling into U steel belt into plate belt between the slot, and on the outside of the strip cladding PE become a new gangsu composite material of the outer wall of pipeline.
HDPE double-wall corrugated pipe and compared with material solid wall pipe, can save nearly half of all raw materials, corrugated pipe is simple and reliable installation, so the HDPE double-wall corrugated pipe construction cost is low. Its inside and outside the wall smooth, not easy scaling, silt, can greatly reduce the maintenance workload. This is a very prominent feature of the pipe.
HDPE double-wall corrugated pipe has excellent chemical stability, corrosion resistance, long life, anti cracking performance. Under the same load conditions, double-wall corrugated pipe only need thinner wall can meet the requirements, so the project cost is low.
HDPE double-wall corrugated pipe transport process, the short distance transportation, are not allowed in the uneven ground or hard stones rolling on the ground, in case of damage to pipeline. Pipeline to the site, users can use visual method, pipe test whether have damage, and make records and inspection procedures, witness sampling inspection as required. In case of damage of a pipeline, the pipeline should be separated from other pipes, immediately notify pipe supplier for inspection, analysis the reason and make identification in order to properly handle in time.
In domestic municipal drainage project construction, high density polyethylene HDPE double-wall corrugated pipe to get promoted, its extremely high ring stiffness, light weight, corrosion resistance is strong, more reliable and simple installation, good sealing, can be widely used in a variety of different corrosive or gravity, the gravity of the corrosive medium, such as municipal sewage, industrial sewage pipeline pipe, drainage pipe, bridge road drainage pipeline, agricultural irrigation pipes, etc., is a new type of environmentally friendly materials in countries and regions to promote.