HDPE water supply pipe

Introduction to HDPE water supply pipe products

HDPE water supply pipe is a new type of pipeline made of high-density polyethylene resin as raw material and processed by composite extrusion molding technology. Due to its high strength, corrosion resistance, and non toxicity, it is widely used in the field of water supply pipeline manufacturing and occupies a place in the pipeline market in China.

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HDPE pipeline connection method

1. Hot melt docking

Principle: By using a dedicated hot melt butt welding machine, the end faces of two HDPE pipes to be connected are heated to a molten state, and then quickly butt them together. Under a certain pressure, they are cooled and solidified to achieve the connection.

Scope of application: Suitable for connecting HDPE pipes with larger diameters, generally DN90 and above.

2. Hot melt socket connection:

Principle: After heating and softening one end of the HDPE pipe, insert it into a matching fitting (such as a socket joint), and cool and solidify it under a certain pressure to achieve connection.

Scope of application: Suitable for connecting HDPE pipes with smaller diameters, generally DN63 and below.

3. Electric fusion socket connection:

Principle: Using electric melting fittings, the connection between the fitting and the pipe is melted by heating the resistance wire inside the fitting, and then cooled and solidified under a certain pressure to achieve the connection.

Scope of application: Suitable for connecting HDPE pipes of various diameters.

4. Electric fusion saddle connection:

Principle: Make a hole in the main pipeline, install the electric melting saddle shaped pipe fittings at the hole, and use the resistance wire inside the pipe fittings to heat them up, so that the pipe fittings are melted and connected to the main pipeline.

Scope of application: Used for branching and connecting branch pipes on the main pipeline.

5. Flange connection:

Principle: Install flanges at the end of HDPE pipes, connect the two flanges together with bolts, and add a sealing gasket in the middle to achieve sealing.

Scope of application: Suitable for connections with valves, pumps, and other equipment, as well as pipeline connections that require frequent disassembly.

HDPE related accessories

Product advantages

1、 Superior physical performance

High strength: able to withstand large internal and external pressures, can work stably for a long time under normal water supply pressure, is not easy to break or deform, and is suitable for various complex terrains and engineering environments. For example, in areas with poor geological conditions and uneven soil settlement, HDPE water supply pipes can also maintain good performance.

Good toughness: It has good flexibility and impact resistance, can absorb energy when subjected to external impact or vibration, and is not easily broken. This characteristic makes HDPE water supply pipes safer and more reliable during transportation, installation, and use. Even in cold weather conditions, they can maintain good toughness and are not easily brittle.

Good wear resistance: The inner wall of the pipeline is smooth, the friction coefficient is small, the water flow resistance is low, and the medium has strong passing ability. Meanwhile, its wear resistance is superior to traditional pipes such as steel pipes. When transporting media containing solid particles, it can reduce pipeline wear and extend its service life.

2、 Strong chemical corrosion resistance

Polyethylene is an inert material that, except for a few strong oxidants, can withstand corrosion from various chemical media and has no electrochemical corrosion. It has good tolerance to common chemicals such as acid, alkali, and salt, and can be used for a long time under different water quality conditions without causing pipeline damage due to chemical corrosion, reducing maintenance costs and replacement frequency of pipelines. For example, in some industrial areas or soils containing corrosive substances, HDPE water supply pipes can still maintain stable performance.

3、 Convenient and fast construction

Lightweight: HDPE water supply pipes have a lower density and are much lighter in weight compared to traditional cast iron pipes, steel pipes, and other pipes. They are easy to transport and install, reducing construction labor intensity and engineering installation costs. In some places where construction conditions are limited, such as narrow streets, inside buildings, etc., the lightweight advantage of HDPE water supply pipes is more obvious.

Coilable: The pipe material has excellent flexibility and can be coiled. It can be supplied in longer lengths, reducing the use of connecting fittings and improving efficiency. Improved construction efficiency. At the same time, the coiled pipes are easy to store and transport, saving storage space and transportation costs. Non excavation construction: In some special areas, various non excavation techniques can be used for construction, such as directional drilling, lining pipe method, pipe splitting method, etc., to avoid large-scale excavation of the ground, reduce damage to the surrounding environment and traffic impact, and improve construction efficiency.

4、 Good hygiene performance

Non toxic and odorless, free of heavy metal additives, non scaling, and non bacterial growth, effectively solving the problem of secondary pollution in drinking water and meeting relevant national hygiene standards and requirements. Therefore, HDPE water supply pipes are widely used in water supply fields with high hygiene requirements, such as urban and rural drinking water pipelines and urban tap water pipeline systems.

5、 Long service life

Under normal usage conditions, the service life of HDPE water supply pipes can reach over 50 years. Compared with traditional metal pipes, it has a longer service life, reduces the frequency of pipeline replacement and maintenance costs, and has higher economy and reliability.

6、 Good environmental adaptability

It has good weather resistance and low temperature impact resistance, and can be safely used in the temperature range of -20 ℃ to 40 ℃. Whether in hot southern regions or cold northern regions, HDPE water supply pipes can maintain stable performance and are suitable for various climatic conditions.

Please contact us for more detailed information and send an email to: sales@hengdepipes.com . Or mobile phone: （WhatsApp）：+86 15265578500