
Blue plastic water pipes are an essential component of modern water supply systems. They are typically made from Medium Density Polyethylene (MDPE), a type of plastic known for its strength, flexibility, and durability. MDPE is selected for water supply pipes due to its excellent resistance to environmental stress cracking, impact, and chemical corrosion. These pipes are used to carry mains drinking water and are suitable for both above and below-ground installations. They are available in a variety of lengths and diameters to suit different projects and applications.
| Characteristics | Values |
|---|---|
| Colour | Blue |
| Material | Medium Density Polyethylene (MDPE) |
| Type of Plastic | Polyethylene (PE) |
| Grade | PE80, PE100 |
| Corrosion Resistance | Yes |
| Chemical Resistance | Yes |
| Flexibility | Yes |
| Recyclability | 100% |
| Use | Transporting potable water |
| Diameter | 20mm, 25mm, 32mm, 50mm, 63mm, 90mm, 110mm, 125mm, 160mm, 180mm |
| Length | 6 metres, 25 metres, 50 metres, 100 metres |
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What You'll Learn
- Blue water pipes are made from Medium Density Polyethylene (MDPE)
- They are used for potable water
- They are used in residential, commercial, industrial, and agricultural settings
- MDPE is resistant to environmental stress cracking, impact, and chemical corrosion
- Blue water pipes are available in a variety of lengths and diameters

Blue water pipes are made from Medium Density Polyethylene (MDPE)
The flexibility of MDPE is particularly advantageous for underground water installations, as it allows the pipes to withstand ground movements without breaking. Blue MDPE pipes are therefore commonly used for underground water mains, providing a reliable means of transporting potable water. These pipes are essential in a variety of settings, including residential, commercial, industrial, and agricultural applications.
Blue water pipes made from MDPE typically adhere to strict certification and industry standards. These pipes meet the standards set by organisations such as the British Standards Institution (BSI), the Water Regulations Advisory Scheme (WRAS), and the Drinking Water Inspectorate (DWI). The certifications confirm that the pipes satisfy crucial safety and performance requirements, ensuring they are safe for delivering potable water.
Blue MDPE pipes are available in various lengths and diameters to cater to diverse project needs. They are known for their robust construction and compliance with stringent standards, making them a versatile and trusted solution for water management projects. Whether for residential drinking water systems or large-scale underground water networks, blue water pipes made from MDPE offer a safe and efficient water supply solution.
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They are used for potable water
Blue plastic water pipes are used for potable water, also known as drinking water, in a range of settings. These pipes are typically made from Medium Density Polyethylene (MDPE), a plastic that is known for its strength, flexibility, and durability. MDPE is selected for water supply pipes due to its excellent resistance to environmental stress cracking, impact, and chemical corrosion. These properties ensure that the pipes maintain their integrity and functionality over long periods, even when subjected to harsh conditions.
The flexibility of MDPE also allows it to withstand ground movements without breaking, making it ideal for underground water installations. Blue MDPE pipes are commonly used for underground water mains and are essential for ensuring a safe and efficient water supply. They are used in residential, commercial, industrial, and agricultural settings to deliver clean, potable water.
Blue plastic water pipes are available in a variety of lengths and diameters to suit different projects. They are typically supplied in 6-metre lengths, but some manufacturers offer pipes in coils of 25, 50, or 100 metres to ensure that length requirements are met. The diameters of these pipes can range from 20mm to 180mm, providing a diverse selection for various applications.
The use of blue plastic water pipes for potable water offers several benefits. The pipes are corrosion and chemical-resistant, preventing the buildup of unwanted bacteria and ensuring the water remains uncontaminated. They also comply with strict certification standards, such as those set by the British Standards Institution (BSI), the Water Regulations Advisory Scheme (WRAS), and the Drinking Water Inspectorate (DWI). These certifications confirm that the pipes are safe for transporting potable water and meet essential safety and performance criteria.
In summary, blue plastic water pipes are commonly used for potable water applications due to their durability, flexibility, and resistance to corrosion and chemicals. They play a vital role in delivering clean and safe drinking water in various settings, and their compliance with strict industry standards makes them a reliable choice for water supply systems.
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They are used in residential, commercial, industrial, and agricultural settings
Blue water pipes are used in a variety of settings, including residential, commercial, industrial, and agricultural applications. They are an essential component in modern water supply systems, providing a safe, reliable, and efficient means of transporting potable water.
In residential settings, blue water pipes are commonly used for underground water mains, supplying drinking water to homes. These pipes are typically made from Medium Density Polyethylene (MDPE), a type of plastic known for its strength, flexibility, and durability. MDPE pipes are highly resistant to environmental stress cracking, impact, and chemical corrosion, ensuring the long-term integrity and functionality of the water supply system.
In commercial and industrial settings, blue water pipes are used for a range of applications, including plumbing in buildings, irrigation, and water supply for manufacturing processes. The flexibility and durability of MDPE pipes make them suitable for these diverse applications, ensuring a safe and efficient water supply.
In agricultural settings, blue water pipes are used for irrigation and water supply to farms and agricultural facilities. The pipes' ability to withstand ground movements without breaking makes them ideal for use in fields and other outdoor environments. Additionally, the corrosion and chemical resistance of blue water pipes prevent bacterial build-up, ensuring that the water supplied to crops and livestock remains uncontaminated.
Overall, blue water pipes are a versatile and crucial component in various settings, playing a vital role in delivering clean and safe water. Their durability, flexibility, and compliance with strict certification standards make them a reliable choice for water supply systems.
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MDPE is resistant to environmental stress cracking, impact, and chemical corrosion
Blue plastic water pipes, also known as blue MDPE water pipes, are used to carry mains drinking water. They are made from Medium Density Polyethylene (MDPE), a type of polyethylene with a molecular structure that falls between Low Density Polyethylene (LDPE) and High Density Polyethylene (HDPE). MDPE is selected for water supply pipes due to its excellent resistance to environmental stress cracking, impact, and chemical corrosion.
MDPE's resistance to environmental stress cracking is due to its unique molecular structure, which imparts it with higher tensile strength, greater stiffness, and improved resistance to stress cracking compared to LDPE. The higher tensile strength of MDPE allows it to withstand higher stress levels without failing. This is important because environmental stress cracking is the result of a physical interaction between the stressed polymer and a corrosive environmental liquid, which can cause the initiation and growth of cracks.
MDPE also exhibits good impact resistance, which is important for its use in water pipes. Its flexibility allows it to withstand ground movements without breaking, making it ideal for underground water installations. The balance of strength and flexibility makes it a preferred choice for the production of pipes used in water distribution.
Additionally, MDPE is known for its excellent chemical resistance, which ensures durability and reliability in applications where exposure to various chemicals is a concern. This is important because the exposure of polymers to liquid chemicals can accelerate the crazing process, initiating cracks at lower stress levels. MDPE's chemical resistance helps to prevent the build-up of unwanted bacteria inside the pipe, ensuring that the water running through it remains safe and uncontaminated.
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Blue water pipes are available in a variety of lengths and diameters
Blue water pipes are a crucial component of modern water supply systems, providing a safe, reliable, and efficient means of transporting potable water. They are typically made from Medium Density Polyethylene (MDPE), a type of plastic known for its strength, flexibility, and durability. MDPE is selected for water supply pipes due to its excellent resistance to environmental stress cracking, impact, and chemical corrosion. This ensures that the pipes maintain their integrity and functionality over long periods, even in harsh conditions.
For example, blue water pipes with a PE80 SDR11 classification are available in diameters of 20mm, 25mm, 32mm, 50mm, and 63mm. These pipes are suitable for a variety of applications, including residential, commercial, industrial, and agricultural settings. The flexibility of MDPE also makes it ideal for underground water installations, as it can withstand ground movements without breaking.
Blue water pipes made from high-density polyethylene, such as the VERSAPIPE® range, offer increased resistance to long-term fatigue cracking and can support higher water pressure. These pipes are also non-toxic and FDA-approved, making them safe for transporting potable water. The versatility and durability of blue water pipes make them a popular choice for a wide range of water management projects.
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Frequently asked questions
Blue plastic water pipes, also known as blue MDPE water pipes, are used to carry mains drinking water. They are made from Medium Density Polyethylene (MDPE), a type of plastic known for its strength, flexibility, and durability.
Blue plastic water pipes offer various benefits, including corrosion and chemical resistance, which means that unwanted bacteria cannot build up inside the pipe and contaminate the water. They are also known for their reliability and efficiency in transporting potable water.
Blue plastic water pipes are essential for ensuring a safe and efficient water supply. They are used in a wide range of applications, including residential, commercial, industrial, and agricultural settings, as well as underground water mains.










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