HDPE (high-density polyethylene) pipes are widely used in municipal engineering, building water supply and drainage, agricultural irrigation, industrial transportation and other fields due to their excellent physical properties, chemical stability and cost-effectiveness. With the continuous upgrading of modern infrastructure, the demand for HDPE pipes is also growing. As one of the common sizes, the specifications, performance and price of 250mm HDPE pipes have become the focus of users when purchasing.
250mm HDPE pipe specifications
250mm hdpe pipe refers to a high-density polyethylene pipe with an outer diameter of 250 mm. The specifications of HDPE pipes are usually determined by the outer diameter (OD) and wall thickness (WT). The wall thickness of 250mm pipes can vary according to different working pressures and use environments. According to international standards, the wall thickness of HDPE pipes can be classified by different pressure levels. Common pressure levels are PN4, PN6, PN8, PN10, etc., which indicate the working pressure that the pipe bears.
Outer diameter and wall thickness:
Outer diameter (OD): 250mm
Wall thickness (WT): There are generally multiple options, such as: 16mm, 18mm, 20mm, 22mm, 24mm, etc. The specific wall thickness depends on the pressure level of the pipe.
Pressure level (PN value):
PN4: Suitable for low pressure environment, generally used for water supply system with pressure not exceeding 4 kg.
PN6: Suitable for medium and low pressure environment, withstanding pressure not exceeding 6 kg.
PN8: Suitable for medium pressure environment, withstanding pressure not exceeding 8 kg.
PN10: Suitable for higher pressure environment, withstanding pressure not exceeding 10 kg.
Length and joints: The length of 250mm HDPE pipe is usually 6 meters, but it can also be customized according to customer needs. The connection method of the pipe is usually electric heat welding, socket connection or flange connection.
Material and standard:
HDPE pipe is usually made of PE80 or PE100. PE100 is a common high-strength, corrosion-resistant material suitable for various harsh environments. Common international pipeline production standards include ISO4427, GB/T13663-2000, etc.
Performance characteristics of 250mm HDPE pipe
1. Corrosion resistance: HDPE pipe has excellent corrosion resistance, can resist the erosion of most chemical substances, is suitable for conveying corrosive media, and is not easily affected by salt, acid and alkali in water.
2. Wear resistance: HDPE pipe has a smooth surface and a low friction coefficient, which can effectively reduce the wear inside the pipe and extend its service life.
3. Anti-ultraviolet performance: Most HDPE pipes have anti-ultraviolet agents added to their surfaces, which can resist the damage of sunlight and ultraviolet rays, ensuring that they will not fade or crack when used outdoors for a long time.
4. Low temperature resistance: HDPE pipes can maintain good toughness and strength even in low temperature environments, and are not easy to crack.
5. Simple connection method: HDPE pipes have simple connection methods, such as hot melt butt joint and mechanical connection, which are convenient and quick to construct.
6. Environmental protection: HDPE pipes have good recyclability, do not pollute the environment, and are in line with the current trend of green environmental protection.
Factors affecting 250mm HDPE pipe price
The price of HDPE pipe is affected by many factors, and the specific price will vary depending on the specifications, materials, production process, supply area, market demand, etc. of the pipe. Taking 250mm HDPE pipe as an example, its price fluctuation is mainly determined by the following aspects:
1. Raw material price: The raw material of HDPE pipe is mainly polyethylene, and the price fluctuation of polyethylene in the market has a greater impact on the cost of HDPE pipe. In recent years, the price of polyethylene has a certain upward trend, so the price of HDPE pipe has also risen accordingly.
2. Pipe wall thickness and pressure level: The price of 250mm pipe is also directly related to the wall thickness and pressure level. Thicker pipes and pipes with high pressure levels require more raw materials, so the price is higher.
3. Production process and quality: The production process requirements of high-quality HDPE pipes are higher, and the equipment investment and production costs are also increased accordingly. Therefore, pipes with more reliable quality are often slightly higher in price.
4. Region and transportation: The raw material cost, production cost, and transportation costs in different regions will also affect the final price of the pipe. Especially in long-distance transportation, freight may become an important part of the price.
According to the current market price, the price of 250mm HDPE pipe is roughly between 100-300 yuan/meter. The specific price needs to be determined based on the above factors and the supplier’s pricing strategy.
Application Fields
As a common specification of pipes, 250mm HDPE pipe is widely used, mainly including the following fields:
1. Municipal water supply and drainage: 250mm HDPE pipe is often used in the construction of urban water supply and sewage networks, which can effectively guarantee the city’s water supply and sewage discharge.
2. Agricultural irrigation: In agricultural irrigation systems, 250mm HDPE Irrigation Pipe can be used to transport water sources, support large-scale farmland irrigation, and ensure the water conservancy needs of agricultural production.
3. Industrial transportation: The corrosion resistance of HDPE pipe makes it widely used in material transportation systems in chemical plants, petrochemicals, metallurgy and other industries, especially for the transportation of corrosive liquids and gases.
4. Natural gas transportation: 250mm HDPE Gas pipe also commonly used for natural gas transportation, ensuring the safe and efficient transmission of energy.
5. Communications and electricity: In some underground pipeline systems, 250mm HDPE Electrical Conduit can also be used for cable protection and the installation of communication facilities.
250mm HDPE pipe is widely used in many industries due to its excellent properties such as high strength, corrosion resistance, and UV resistance. Choosing the right pipe specifications and pressure levels can not only meet the needs of the project, but also reduce the cost of the project. In terms of price, it is affected by many factors such as raw materials, production processes, and regional transportation, so it needs to be considered comprehensively when purchasing. With the continuous growth of market demand, the application prospects of HDPE pipes will be broader, and the potential in environmental protection and energy saving will be further exerted in the future.
