HDPE pipe (high-density polyethylene pipe) is a plastic pipe made of high-density polyethylene (HDPE) as raw material through an extrusion process. HDPE pipe is widely used in municipal engineering, agricultural irrigation, industrial transportation, construction and other fields because of its excellent corrosion resistance, pressure resistance, toughness and long service life. Compared with traditional metal pipes and cement pipes, HDPE pipes are lightweight, durable and environmentally friendly, and have become an important part of modern pipeline systems.
Among them, 6 inch HDPE pipe, as a small and medium-caliber pipe, plays a key role in many pipeline systems, especially in water supply, drainage and transportation systems.
6 inches is the standard unit of the outer diameter of the pipe, usually used to describe the diameter of the pipe. The outer diameter of the 6-inch HDPE pipe is about 160 millimeters (mm), and its specifications mainly include parameters such as outer diameter, wall thickness, inner diameter, pressure level and pipe length.
1. Outer diameter and inner diameter: The outer diameter of the 6-inch HDPE pipe is 160mm, and the inner diameter varies according to the wall thickness. For example, the inner diameter of a thinner pipe is about 140mm, while the inner diameter of a thicker pipe is relatively small.
2. Pipe wall thickness: The wall thickness of a 6-inch HDPE pipe is usually between 4mm and 10mm, and the specific wall thickness depends on the pressure level and use environment of the pipe. For example, the wall thickness of a PN6 (6 bar pressure) pipe is thinner, while the wall thickness of a PN10 (10 bar pressure) pipe is relatively thicker.
3. Pressure level: The pressure level of an HDPE pipe is usually expressed as "PN" in bar, which indicates the working pressure of the pipe. Common pressure levels for 6-inch HDPE pipes include PN6, PN8, PN10, PN16, etc., which indicate that the maximum working pressure that the pipe can withstand is 6 bar, 8 bar, 10 bar and 16 bar, respectively. Different pressure levels are suitable for different application scenarios.
4. Pipe length: The common length of a 6-inch HDPE pipe is 6 meters or 12 meters per section, and different lengths can also be customized according to customer needs. The connection of the pipe is usually completed by hot melt connection or electric fusion connection, which has good sealing performance.
5. Materials and standards: The material of HDPE pipes is high-density polyethylene, which complies with national and international standards, such as China's GB/T13663.2-2000 standard and the US ASTM standard.
6 inch HDPE pipe price is affected by many factors, including the pressure level, wall thickness, manufacturer, production process and market supply and demand. Generally speaking, the price of 6-inch HDPE pipe is roughly between RMB 100 and RMB 300 per meter. The specific price range is as follows:
Ordinary type (low pressure level, thinner wall thickness): the price per meter is about RMB 100 to RMB 160.
Medium type (medium pressure level, standard wall thickness): the price per meter is about RMB 160 to RMB 240.
High strength type (high pressure level, thicker wall thickness): the price per meter is about RMB 240 to RMB 300.
It should be noted that the price difference is mainly determined by the following factors:
Raw material cost: The price of HDPE pipe is affected by the fluctuation of polyethylene raw material prices, so when the raw material price rises, the pipe price will also rise.
Production process: The production process and equipment level used by different manufacturers are different, which will also affect the final price.
Purchase quantity: When purchasing in bulk, manufacturers often provide certain discounts, and the unit price will be relatively low.
Additional services: Additional service fees such as transportation and installation will also affect the total cost of the pipeline.
6 inch HDPE pipe is widely used in many industries due to its moderate diameter and superior physical properties, especially in the fields of water supply, drainage, sewage and industrial transportation. The specific applications are as follows:
Municipal water supply system
6 inch HDPE pipe for water supply is often used in urban water supply networks, especially small and medium-sized water plant water supply pipelines. HDPE pipes can prevent water pollution and resist the erosion of the external environment to the pipes due to their good corrosion resistance. In some old water supply pipe replacement projects, 6 inch HDPE pipes are widely used due to their durability and good installation performance.
Drainage and sewage system
In urban drainage systems, 6 inch HDPE Drainage Pipe is often used for rainwater discharge and sewage treatment pipes. HDPE pipes can resist the erosion of various corrosive substances in sewage and reduce the maintenance and replacement costs of pipes. Especially in some harsh environments, such as underground pipe networks, HDPE pipes can effectively extend their service life due to their strong pressure resistance and anti-aging ability.
Agricultural irrigation system
In the agricultural field, 6 inch HDPE pipes are widely used in farmland irrigation systems. The durability and high flow capacity of HDPE pipes make them an ideal choice for irrigation pipes. Its low transportation and installation costs can greatly reduce the construction and maintenance costs of agricultural irrigation systems and improve the efficiency of water resources.
Industrial transportation system
6-inch HDPE pipes are also widely used in the industrial field, especially in liquid or gas transportation systems in the chemical, food, pharmaceutical and other industries. The corrosion resistance, chemical reaction resistance and aging resistance of HDPE pipes make them an ideal choice for industrial pipeline systems.
Mining and oil and gas transportation
In the mining, oil and gas and other industries, 6-inch HDPE pipes are used for the transportation of liquids or gases. The high strength and chemical corrosion resistance of HDPE pipes make them perform well in the face of harsh environments, effectively ensuring the safety and reliability of the transportation process.
Communication cable protection pipe
6-inch HDPE pipes can also be used as protection pipes for communication cables, especially in underground communication networks in some cities. HDPE pipes can effectively protect cables from damage from the external environment and ensure smooth communication.
6-inch HDPE pipes have been widely used in many industries with their moderate caliber and excellent physical properties. Whether in municipal engineering, agricultural irrigation, industrial pipeline systems, or in mining, oil and gas transportation, 6-inch HDPE pipes can provide reliable solutions. Its relatively economical price, long service life and strong adaptability make it occupy an important position in the pipeline market. In the future, with the advancement of technology and the diversification of market demand, HDPE pipes will play a greater role in more fields.
