With the acceleration of industrialization and the continuous improvement of infrastructure construction requirements, high-density polyethylene (HDPE) pipes have become important pipe materials in various water, drainage and gas transmission systems due to their excellent physical properties and durability. SDR 17 HDPE pipes are widely used in urban water supply, sewage discharge, natural gas transmission and other fields with their moderate wall thickness and high pressure bearing capacity. This article will introduce SDR 17 hdpe pipe specifications, characteristics and specific applications in detail to help people deeply understand the importance of this pipe product in modern engineering construction.
SDR 17 hdpe pipe specifications
SDR (Standard Dimension Ratio) refers to the ratio of the outer diameter of the pipe to the wall thickness, which is an important parameter of the pipe specification. The smaller the SDR value, the thicker the wall thickness of the pipe relative to the outer diameter, and the stronger the pressure bearing capacity; the larger the SDR value, the thinner the wall thickness of the pipe relative to the outer diameter, which is suitable for occasions with lower pressure.
In the case of SDR 17, the ratio between the outer diameter (D) and the wall thickness (t) of the pipe is 17, that is:
SDR=Dt=17SDR = \frac{D}{t} = 17SDR=tD=17
This means that the wall thickness of SDR 17 pipe is 1/17 of the outer diameter and is suitable for use under medium pressure conditions. In general, the choice of SDR value depends on the working pressure that the pipe needs to withstand. SDR 17 pipes usually withstand a maximum working pressure of 6 bar (6 atmospheres), so they are widely used in pressure transmission systems.
Common parameters of SDR 17 pipes
1. Pipe outer diameter: The outer diameter of SDR 17 pipes usually ranges from 63mm to 1600mm, which is suitable for engineering projects of different sizes.
2. Wall thickness: Depending on the size of the outer diameter, the wall thickness varies within a certain range, but the ratio of its outer diameter to wall thickness always remains at 17:1.
3. Pressure bearing capacity: SDR 17 pipes can usually withstand an internal pressure of 6 bar, so they are suitable for medium pressure water supply or gas transportation.
Physical and chemical properties
SDR 17 HDPE pipe has a series of outstanding physical and chemical properties, which enables it to perform well in a variety of environments and adapt to the use needs of different fields.
1. High corrosion resistance: HDPE material has extremely high corrosion resistance to a variety of chemical substances such as acids, alkalis, and salts. It can be used for a long time in harsh chemical environments, reducing the maintenance and replacement frequency of pipelines.
2. Good impact resistance: HDPE pipes have strong toughness and are not easy to break or fracture even at low temperatures or when encountering external impacts, ensuring the safety of the pipes during transportation and use.
3. Excellent wear resistance: HDPE pipes have a smooth surface, can effectively prevent sedimentation and scaling, have good wear resistance, and are suitable for the transportation of granular materials such as mortar and slurry.
4. Anti-ultraviolet ability: HDPE pipes can maintain stable performance after long-term exposure to sunlight by adding anti-ultraviolet additives, and are suitable for outdoor buried or exposed installation.
5. Low temperature resistance: HDPE materials show good flexibility under low temperature conditions and can usually work normally in the temperature range of -40℃ to 60℃.
Application fields
SDR 17 HDPE pipe has been widely used in many industries and fields due to its unique pressure bearing capacity and excellent physical and chemical properties.
Urban water supply system
In urban water supply systems, SDR 17 HDPE pipes are often used in medium-pressure pipe network construction. Due to its excellent corrosion resistance and impact resistance, SDR 17 pipes can work stably in complex underground environments to ensure the long-term operation of water supply systems. Compared with traditional steel pipes, HDPE pipes are easier to install and the connections are more sealed, reducing the risk of leakage.
Sewage discharge and sewage treatment
SDR 17 HDPE pipes are widely used in sewage treatment and sewage discharge systems. Its corrosion resistance enables it to effectively resist the erosion of chemical components in sewage, and it is not easy to age due to long-term burial or exposure to the environment. Especially in industrial sewage and urban sewage pipe networks, SDR 17 pipes can provide long-term and reliable transportation solutions.
Natural gas transportation
In the field of natural gas transportation, due to its good pressure resistance and impact resistance, it is widely used in medium-pressure natural gas transportation systems. The chemical stability of the pipe material can prevent the corrosive components in natural gas from damaging the pipe, ensuring the safety and service life of the pipe.
Agricultural irrigation
SDR 17 HDPE pipe has important applications in agricultural irrigation systems, especially in irrigation systems that require medium and high pressure. HDPE pipes have low water resistance and can effectively improve the efficiency of water flow transmission. In addition, the weather resistance and UV resistance of HDPE pipes make them very suitable for long-term exposure to outdoor environments.
Industrial transportation system
In the industrial field, it is often used to transport a variety of media such as chemical raw materials, slurry, oil and natural gas. Due to its good corrosion resistance and wear resistance, HDPE pipes can provide long-term and stable transportation capacity in harsh industrial environments, reducing the maintenance and replacement costs of equipment.
SDR 17 HDPE pipe plays an important role in water supply, drainage, natural gas transportation, agricultural irrigation and industrial transportation with its excellent pressure bearing capacity, corrosion resistance, impact resistance and wear resistance. With the growing demand for modern infrastructure construction, the application prospects of SDR 17 HDPE pipe will be broader. Its high cost-effectiveness and sustainability will continue to promote the widespread application of this pipeline material in various industries, becoming an important guarantee for ensuring the safe and efficient operation of the transportation system.
