The drainage system is an important performance factor for pipeline products, and PE pipes are currently the most commonly used type of pipeline, so there will be more attention paid to the various aspects of the performance of PE pipes.
Firstly, there is polyethylene pipe, also known as PE pipe, because polyethylene is divided into high-density polyethylene (HDPE), medium density polyethylene pipe (MDPE), and low-density polyethylene pipe (LDPE) according to its density. Polyethylene pipes can be divided into single-layer solid wall pipes, double wall corrugated pipes, and spiral wound pipes according to their structural forms. Double wall corrugated pipes and spiral wound pipes are mainly processed from HDPE raw materials and are mainly used for urban drainage. Single layer solid wall HDPE is mainly used for urban water supply and urban gas transportation. Single layer solid wall MDPE pipes are mainly used for urban gas transportation. Single layer solid wall LDPE pipes are widely used as agricultural drainage and irrigation pipelines and industrial ordinary pipelines.
Compared with other pipelines, fiberglass reinforced plastic sand pipes are made using short glass fiber centrifugation or long glass fiber winding, with a sand filling process in the middle. The pipe wall is slightly thicker, and the circumferential stiffness is higher. It can be used as a buried pipeline to withstand internal and external pressure. The diameter can range from 500 to 2600 millimeters. The material of fiberglass reinforced plastic sand pipes is brittle and only suitable for large diameters. During construction, mechanical collisions are prone to hidden injuries, which are difficult to detect and affect their service life. UPV-C pipes have high impact resistance and chemical resistance. It can be processed with different additives according to different usage requirements, making it have physical and chemical properties that meet different requirements. UPV-C pipes have the characteristics of long service life and good sealing. However, UPV-C pipes have heavy metal stabilizers during processing, which will gradually seep out during use and affect water sources. The major defects of steel pipes are short service life, strong corrosiveness, poor sealing, easy leakage, high price, and poor adaptability to uneven surface settlement. The cost of ductile iron pipes is high, with an average price 10% to 15% higher than that of PE pipes. Excessive corners at the connection interface can easily cause leaks. Gray cast iron pipes have a short service life, high friction coefficient, poor sealing, and are prone to leakage.
Compared to the simple installation and stable performance of PE pipes, there is a need for more comparison when choosing other pipe fittings, and there is also a significant difference in the use of drainage systems.