About 75MM HDPE WATER PIPE SDR-21

75MM HDPE PIPE SDR-21 DESCRIPTION

The 75MM HDPE Pipe SDR-21 is a robust, flexible, and cost-effective piping solution manufactured using high-grade High-Density Polyethylene (HDPE). With a Standard Dimension Ratio (SDR) of 21, this pipe is designed for low to medium pressure applications, offering an excellent balance between strength and economy.

It is widely used in water supply systems, agricultural irrigation, and cable protection applications. The pipes superior resistance to corrosion, chemicals, and environmental stress cracking ensures long-term reliability even in harsh working conditions.

The smooth inner surface reduces friction losses, ensuring efficient fluid flow and improved system performance. Additionally, the pipe is UV stabilized, making it suitable for both underground and above-ground installations.

Key Features

• Strong yet flexible construction
• Corrosion and chemical resistant
• Lightweight and easy to install
• Smooth internal surface for efficient flow
• Leak-proof jointing systems
• UV stabilized for outdoor use
• Long service life (50+ years)

Technical Specifications

• Size: 75MM (Outer Diameter)
• Material: HDPE (PE 63 / PE 80 / PE 100)
• SDR: 21
• Pressure Rating: PN 6 (approx.)
• Jointing Methods: Butt fusion / Electrofusion / Compression fittings

Applications

• Agricultural irrigation systems
• Drinking water supply networks
• Underground cable ducting
• Industrial fluid transportation
• Rural and municipal pipeline systems

FAQs 75MM HDPE PIPE SDR-21

Q1. What does SDR-21 indicate?

SDR-21 represents the ratio of pipe diameter to wall thickness, indicating suitability for low-pressure applications.

Q2. What is the pressure rating of 75MM SDR-21 pipe?

It is generally rated at PN 6, making it ideal for low to medium pressure systems.

Q3. Where is this pipe commonly used?

Typical applications include:

• Irrigation
• Water supply
• Cable protection
• Drainage systems

Q4. Can it be installed underground?

Yes, it is highly suitable for underground installations due to its flexibility and durability.

Q5. Is it safe for drinking water use?

Yes, if manufactured with approved materials, it is safe for potable water supply.

Q6. What is the lifespan of this pipe?

The expected life is 50 years or more under normal operating conditions.

Q7. What types of joints are used?

• Butt fusion
• Electrofusion
• Compression fittings

Q8. Does it rust or corrode?

No, HDPE pipes are completely resistant to corrosion and rust.

Q9. What are the advantages of SDR-21 pipes?

They are economical and ideal for applications where high pressure resistance is not required.

Q10. Is maintenance required?

Minimal maintenance is required due to the durable and non-reactive nature of HDPE