About 140MM HDPE WATER PIPE SDR-21

140MM HDPE PIPE SDR-21 DESCRIPTION

The 140MM HDPE Pipe SDR-21 is a high-quality, durable, and cost-effective piping solution manufactured from premium grade High-Density Polyethylene (HDPE). With a Standard Dimension Ratio (SDR) of 21, this pipe is specifically designed for low to medium pressure applications, offering an excellent balance of strength, flexibility, and long service life.

This pipe is widely used in water supply systems, agricultural irrigation, and underground cable protection. Its superior resistance to corrosion, chemicals, and environmental stress cracking ensures reliable performance even in harsh operating conditions.

The smooth inner surface of the pipe minimizes friction loss, enabling efficient flow and reduced energy consumption. Additionally, it is UV stabilized, making it suitable for both underground and above-ground installations.

Key Features

• Strong and flexible structure
• Excellent corrosion and chemical resistance
• Lightweight and easy to handle
• Smooth inner surface for efficient flow
• Leak-proof jointing systems
• UV stabilized for outdoor applications
• Long service life (50+ years)

Technical Specifications

• Size: 140MM (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 pipelines
• Underground cable ducting
• Industrial fluid transportation
• Municipal and rural water distribution networks

FAQs 140MM HDPE PIPE SDR-21

Q1. What does SDR-21 mean?

SDR-21 indicates the ratio between pipe diameter and wall thickness, making it suitable for low-pressure applications.

Q2. What is the pressure rating of 140MM SDR-21 pipe?

It is generally rated at PN 6, suitable for low to medium pressure systems.

Q3. Where is this pipe commonly used?

It is widely used in:

• Irrigation
• Water supply
• Cable ducting
• Drainage applications

Q4. Is this pipe suitable for underground installation?

Yes, it is highly suitable due to its flexibility and resistance to soil stress.

Q5. Is it safe for potable water supply?

Yes, if manufactured with approved raw materials, it is safe for drinking water use.

Q6. What is the expected lifespan?

The pipe can last 50 years or more under normal operating conditions.

Q7. What jointing methods are used?

• Butt fusion
• Electrofusion
• Compression fittings

Q8. Does it corrode or rust?

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

Q9. Why choose SDR-21 pipes?

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

Q10. Does it require maintenance?

Minimal maintenance is required due to its durable and non-reactive properties.