What is HDPE (also called high-density polyethylene winding structure wall pipe)
High-density polyethylene (HDPE) reinforced winding pipe is a type B structure wall pipe made by spiral winding process with smooth inner wall and screw reinforced aid. It is a flexible pipe. Using high-density polyethylene as raw material, it is made by winding forming process in the state of hot melt, and before it is demoulded in the hot state, it is cooled by rolling air cooling, and the pipe gradually dissipates heat and the wall thickness is uniform. HDPE winding reinforcement adopts accepting electric fusion connection. Both ends of the pipe are processed into socket and socket during production, and electric fuse is embedded in the socket end. When the pipe is connected, the welding can be completed only by connecting the power supply, and the pipe system can realize zero leakage.
HDPE winding reinforced pipe (Type B) is a modern type of flexible pipe, with light weight, great strength, smooth inner wall, corrosion resistance, aging resistance, wear resistance, strong impact resistance, excellent flexibility, health. Weld quality is strong, body connection, excellent connection quality, no leakage, long service life, quick and simple construction, suitable for the temperature range of ±70℃ and so on. The product is widely used in urban drainage, municipal drainage, electricity, petrochemical, coal mine ventilation and other fields. It is the ideal replacement of reinforced concrete, cast iron pipe products.
HDPE pipe manufacturers Summary of Pipes:
1 Hot wound steel die forming weld quality is superior;
2 undertake electric fusion connection, connection quality is excellent, no leakage;
3 interface connection strength is extreme, can be multi-pipe welding in the groove, the whole under the groove, saving time and labor;
4 Complete system accessories, a variety of supporting pipe fittings, inspection Wells;
5. the raw materials meet the requirements of environmental protection, the production process is pollution-free, can be recycled in all, belong to green environmental protection products;
6. excellent drainage and circulation performance: smooth inner wall of the pipe, modest wear resistance, rapid flow rate, large flow;
7 Corrosion resistance, aging resistance, long service life, to ensure more than 50 years;
8. Excellent flexibility, improve the seismic and disaster reduction capacity of public facilities;
9. Use computers for product structure design, selection and strength calibration, quickly and accurately provide users with engineering solutions and select high-quality products.
A detailed explanation of the carat pipe
The carat tube is the wall tube of high-density polyethylene (HDPE) winding structure. With elevated density polyethylene resin as the main raw material, the wall pipe is made of special structural wall pipe with high resistance to external pressure by using hot winding process and polypropylene (PP) single wall bellows as the supporting structure. The carat tube products can be divided into PR, OP, SQ and VW series.
Carat tube products can be divided into PR, OP, SQ and VW series, among which: PR and OP- are mainly used for buried drainage pipes, SQ- is mainly used for manufacturing containers or inspection Wells, and VW- is mainly used for pipe fittings formed by tees, elbows and secondary processing. PR series are mostly used in products with smooth inner surface and special-shaped reinforced structure outside. The standard length of pipe is 6 meters and the inner diameter range of pipe is DN300-DN4000. All the products meet the requirements of GB/T 19472.2-2017 B-type wall tube standard and PREN-13476 European standard.
Performance Characteristics
Where are the advantages of HDPE winding structure wall pipe over HDPE double-wall corrugated pipe? There are the following points:
1. The flat material belt and U-shaped material belt in the molten state extruded from the extruder's mouth die are evenly wound on the heated roller die according to the predetermined position to ensure the melting joint quality of the structure wall pipe. Especially in the structural design, the melt joint of the flat material belt is covered by the polyethylene coated support pipe, which improves the overall external pressure resistance of the product.
2. The pipe connection with excellent installation performance adopts the technology of embedded electric fuse in the socket with the same material, and the connection quality is superior. No leakage can be achieved to ensure the longevity of the pipeline system and the operation of the same sex. At the same time, because the product under the same application conditions as other pipe weight, convenient transportation, convenient construction, construction costs, in the range of application, do not need concrete bedding and concrete pipe base trench qualified can be directly applied pipe, essentially do excavation, pipe down, side backfill, simplify the construction procedure, shorten the construction period. In the project acceptance, the use of closed air inspection instead of closed water test, not only speeds up the acceptance speed, but also saves the complex work and a large number of test costs in the closed water test. The above is the definition of HDPE claras.