HDPE Pipe specification (HDPE pipe) is a pipe material widely used in water supply, gas, drainage, geothermal and other fields. HDPE pipes of different specifications can meet the needs of different fields. This article will introduce several common HDPE pipe models and their application scenarios.
HDPE pipe is a high-density polyethylene pipe with excellent physical and mechanical properties and chemical corrosion resistance. It is widely used in urban water supply and drainage, gas transportation, farmland irrigation, industrial liquid transportation and other fields. HDPE pipe has the characteristics of light weight, corrosion resistance, damage resistance, low temperature resistance, high temperature resistance, etc. It is an ideal choice to replace traditional metal pipes.
1. Specifications
The specifications of HDPE pipes are usually expressed in outer diameter (OD) and wall thickness (WT). Common HDPE pipe specifications are 20mm, 25mm, 32mm, 40mm, 50mm, etc., with outer diameters ranging from 20mm to 1200mm
2. Pressure level
The pressure level of HDPE pipe is usually expressed in PN, which refers to the maximum working pressure that the pipe can withstand under standard test conditions. Common pressure levels are PN6, PN8, PN10, PN12.5, PN16, etc. HDPE pipes of different pressure levels are suitable for different engineering needs.
3. Color classification
HDPE pipes are usually available in black, yellow and blue. Different colors of pipes have different uses, for example, black pipes are suitable for water supply and drainage systems, yellow pipes are suitable for gas transportation, and blue pipes are suitable for industrial liquid transportation.
4. Corrosion resistance
HDPE pipes have excellent chemical corrosion resistance and can resist the erosion of various acids, alkalis, salts and other chemical substances, ensuring the long-term stable operation of the pipeline.
5. Wear resistance
HDPE pipes have a smooth surface, low friction coefficient and good wear resistance. When conveying particulate matter and high-speed fluids, HDPE pipes are not easy to wear, which extends the service life of the pipeline.
6. Low temperature resistance
HDPE pipes have a wide operating temperature range and can operate safely at temperatures from -40℃ to 60℃℃. Even in cold areas, HDPE pipes can maintain good flexibility and reliability,
7. High temperature resistance
HDPE pipes have good heat resistance and can withstand the impact of high-temperature hot water and steam in a short time.
8. Lightweight and high strength
HDPE pipes are light in weight and have a specific gravity close to water, making them easy to carry and install. At the same time, HDPE pipes have high strength and rigidity and can withstand large external impacts.
9. Convenient construction
HDPE pipes have excellent welding performance and can be connected by hot melt connection and electric fusion connection. The construction is convenient and fast. At the same time, HDPE pipes are flexible and can be laid in a bent manner to adapt to various complex terrains.
HDPE pipes are widely used in urban water supply and drainage, gas transportation, farmland irrigation, industrial liquid transportation and other fields.
1. Water supply and drainage system
HDPE pipes have good corrosion resistance and damage resistance in urban water supply and drainage systems, which can effectively prevent pipeline blockage and leakage, and ensure the safety and reliability of water supply and drainage.
2. Gas transportation
HDPE pipes have excellent chemical corrosion resistance and high pressure resistance, and are suitable for urban gas transportation systems. Its softness and reliability can adapt to external force impacts such as earthquakes
3. Farmland irrigation
HDPE pipes have good corrosion resistance and low temperature resistance, and are suitable for farmland irrigation systems. Its light weight and high strength make the installation of farmland irrigation systems more convenient and quick.
4. Industrial liquid transportation
HDPE pipes have good corrosion resistance and high temperature resistance, and are suitable for various industrial liquid transportation systems. Its softness and reliability can adapt to complex industrial environments.
PE80 pipe refers to polyethylene 80 pipe, which is made of high-density polyethylene. The pressure rating of PE80 pipe is generally below 0.6MPa, and it is suitable for some low-pressure occasions, such as agricultural irrigation, underground drainage, and low-pressure gas transportation.
PE100 pipe refers to polyethylene grade 100 pipe, which is made of high-density polyethylene. The pressure rating of PE100 pipe is above 0.6MPa, which is suitable for some high-pressure occasions, such as urban water supply, gas transportation, industrial water transportation, etc.
SDR11 pipe is an HDPE pipe with a pressure rating of 11. Its wall thickness is relatively thin, but it still has a high pressure bearing capacity. SDR11 pipe is suitable for some medium pressure occasions, such as urban tap water, gas transmission, industrial wastewater discharge, etc.
The SDR17 pipe is an HDPE pipe with a pressure rating of 17. Its wall thickness is relatively thick and its pressure bearing capacity is strong. SDR17 pipe is suitable for some low-pressure occasions, such as agricultural irrigation, underground drainage, building drainage, etc.
PE63 pipe refers to polyethylene grade 63 pipe, which is made of high-density polyethylene. The pressure rating of PE63 pipe is generally below 0.4MPa, which is suitable for some low-pressure occasions, such as agricultural irrigation, low-pressure gas transportation, etc. The HDPE pipe models introduced above are common specifications, and different types of pipes are used in different occasions. When selecting HDPE pipes, the appropriate specifications should be selected according to actual needs. In addition to pipe specifications, other factors such as pipe length, pipe connection form, pipe material, etc. also need to be considered comprehensively.
