The correct selection of specifications and sizes of HDPE pipes requires consideration of the following factors：
Pipe diameter
The specifications and sizes of HDPE pipes are generally determined by the outer diameter (OD) and wall thickness (WT) of the pipe. Common outer diameter sizes of HDPE pipes include 20mm, 25mm, 32mm, 40mm, 50mm, 63mm, 75mm, 90mm, 110mm, 125mm, 140mm, 160mm, etc., and even larger up to several hundred millimeters. When choosing, it should be based on specific engineering requirements, conveying volume, fluid characteristics and other factors.
Pressure resistance
Wall thickness is an important factor affecting the pressure resistance of the pipeline. The thicker the wall, the higher the strength of the pipeline and the greater the pressure it can withstand. Therefore, when selecting HDPE pipes, it is necessary to determine the appropriate wall thickness based on the required pressure resistance of the pipeline.
Length
HDPE pipes are usually available in two common lengths: 6 meters and 12 meters. When choosing, it should be determined based on specific installation requirements and engineering design. In actual construction, it is necessary to reasonably select the length of the pipe based on the layout and installation conditions of the pipe to ensure smooth construction.
Environment
The selection of HDPE pipes also needs to consider their use environment, such as temperature, soil conditions, corrosiveness, etc. For example, in a low-temperature environment, HDPE pipes with good low-temperature resistance should be selected; in a highly corrosive environment, pipes with good corrosion resistance should be selected.
Standards and specifications
When selecting HDPE pipes, you should refer to relevant national standards and specifications, such as GB/T 13663-2000, etc. These standards and specifications have detailed regulations and requirements for the specifications, dimensions, performance, etc. of HDPE pipes.
Conclusion
The correct selection of the specifications and sizes of HDPE pipes requires comprehensive consideration of multiple factors, including actual needs, pressure resistance, pipeline length, use environment, and relevant standards and specifications. By comprehensively evaluating these factors, the appropriate HDPE pipe can be selected to ensure the safe and reliable operation of the project.
