NEPRO INDUSTRIES PVT LTD
HDPE PIPES
NEPRO HDPE (High Density Polyethylene) pipe is ideal for many different applications includ- ing municipal, industrial, energy, geothermal, landfill and more. NEPRO HDPE pipe is strong, durable, flexible and light weight.
When fused together, NEPRO HDPE pipe has a zero leak rate because the fusion process creates a monolithic, HDPE system. NEPRO HDPE pipe is more environmentally sustainable option as it is non-toxic, corrosion and chemical resistant, has a long design life, and is ideal for trenchless installation methods because of its flexibility.
Standard compliance:
Nepro HDPE Pipes are manufactured in utter compliance of the following standards and regulations:
- AS PER ISO 4427, DIN 8074 / 8075 & PS 3580
HOW WE ACHIEVE PAKISTAN'S BEST QUALITY
Top Working Process
Nepro’s two decades of first-hand experience in plumbing and sanitation gives a unique advantage of knowing the subject like no other.
MATERIALS & STANDARD
EDGE QUALITY
LAUNCH
FEATURES
High fatigue resistance
Non Toxic
Durabilty
Leak free joints
NEPRO HDPE Pipes Installation: Mastering Butt Fusion for Seamless Joints
These HDPE pipes, known for their toughness and flexibility, are an absolute game-changer. They're not only incredibly lightweight but also pack a punch when it comes to cost savings in both above-ground and below-ground installations. Trust us, these pipes are like the superheroes of the plumbing world, standing strong against site damage. But remember, you gotta treat them right – common sense and a bit of TLC go a long way to ensure they perform like champions without a hitch.
Pipe Trench: Unleashing the Power of HDPE Pipes for Cost-Efficient Installation
Are you willing to gamble with your pipes when groundwater levels rise? The stakes are high! To guarantee the best pipe support, make sure the secondary initial backfill seamlessly extends from the primary initial backfill. But that's not all, folks! The minimum trench width? Well, that's like rolling the dice – it depends on unpredictable site conditions and the materials you're working with. And don't even get us started on foundations! They're not just optional. When the native trench bottom can't cut it, you better believe you'll need a solid foundation to save your pipe from disaster.
BUTT-FUSION & WELDING: The Art of Seamless Connection
Butt welding, also known as butt fusion, is the go-to way to join PE pipes. Here's how it works: a heater plate gets sandwiched between the ends of two pipes. They're pressed together, which makes the pipe ends all soft and pliable. After that, the heater plate is taken away, and the pipes come back together. They cool down while still under pressure, and voilà – you've got yourself a strong, leak-free, seamless connection.
Guidelines for Safely Handling NEPRO HDPE Pipes
PIPES
The details of all sizes available is as under:
| OUTSIDE DIAMETER (mm) | Dimension Ratio | |
|---|---|---|
| SDR 21 | SDR 17 | |
| PN8 · Wall Thickness (mm) | PN10 · Wall Thickness (mm) | |
| 20 | N/A | N/A |
| 25 | N/A | 1.8 |
| 32 | N/A | 2.0 |
| 40 | 2.0 | 2.4 |
| 50 | 2.4 | 3.0 |
| 63 | 3.0 | 3.8 |
| 75 | 3.6 | 4.5 |
| 90 | 4.3 | 5.4 |
| 110 | 5.3 | 6.6 |
| 125 | 6.0 | 7.4 |
| 140 | 6.7 | 8.3 |
| 160 | 7.7 | 9.5 |
| 180 | 8.6 | 10.7 |
| 200 | 9.6 | 11.9 |
| 225 | 10.8 | 13.4 |
| 250 | 11.9 | 14.8 |
| 280 | 13.4 | 16.6 |
| 315 | 15.0 | 18.7 |
| 355 | 16.9 | 21.1 |
| 400 | 19.1 | 23.7 |
| 450 | 21.5 | 26.7 |
| OUTSIDE DIAMETER (mm) | Dimension Ratio | |
|---|---|---|
| SDR 13.6 | SDR 11 | |
| PN12.5 · Wall Thickness (mm) | PN16 · Wall Thickness (mm) | |
| 20 | N/A | 2.0 |
| 25 | 2.0 | 2.3 |
| 32 | 2.4 | 3.0 |
| 40 | 3.0 | 3.7 |
| 50 | 3.7 | 4.6 |
| 63 | 4.7 | 5.8 |
| 75 | 5.6 | 6.8 |
| 90 | 6.7 | 8.2 |
| 110 | 8.1 | 10.0 |
| 125 | 9.2 | 11.4 |
| 140 | 10.3 | 12.7 |
| 160 | 11.8 | 14.6 |
| 180 | 13.3 | 16.4 |
| 200 | 14.7 | 18.2 |
| 225 | 16.6 | 20.5 |
| 250 | 18.1 | 22.7 |
| 280 | 20.6 | 25.4 |
| 315 | 23.2 | 28.6 |
| 355 | 26.1 | 32.2 |
| 400 | 29.4 | 36.3 |
| 450 | 33.1 | 40.9 |
Frequently Asked Questions about HDPE Pipes
What is the HDPE pipe and why is it used?
HDPE stands for High Density Polyethylene. It is a flexible, lightweight thermoplastic pipe known for its corrosion resistance, high strength, and long service life. It is widely used in municipal water supply, industrial systems, agricultural irrigation, and underground installations across Pakistan.
What types of HDPE pipe fittings does Nepro offer?
Nepro supplies a full range of HDPE pipe fittings designed to work with their pipe system. HDPE pipes and fittings from Nepro are joined using butt fusion welding, which creates a zero-leak, monolithic connection. This makes the entire system ideal for underground, trenchless, and pressurised applications where leak-free performance is critical.
What are the HDPE pipe standards followed by Nepro?
Nepro HDPE pipes are manufactured in full compliance with internationally recognised HDPE pipe standards including ISO 4427, DIN 8074, DIN 8075, and Pakistan Standard PS 3580. These standards govern wall thickness, pressure ratings, material quality, and dimensional tolerances, ensuring every pipe delivered meets both local and global project requirements.
What applications are Nepro HDPE pipes suitable for?
Nepro HDPE pipes and fittings are suitable for a wide range of applications including municipal water distribution, industrial piping, agricultural irrigation, drainage systems, geothermal installations, landfill gas collection, and trenchless underground installations. Their flexibility, chemical resistance, and zero-leak fusion joints make them one of the most versatile piping solutions available in Pakistan.
How long do HDPE pipes last and are they safe for drinking water?
HDPE pipes have a design life of 50 years or more. They are fully non-toxic, corrosion-resistant, and safe for drinking water distribution. Nepro HDPE pipes meet ISO 4427 standards, which specifically cover potable water applications, ensuring long-term water quality and system reliability.