A Complete Guide : Provident Procurement

Many sectors have historically relied on concrete, metal, and clay for pipe products. However, because of the pressing need to keep production costs down and maintain quality, performance, and efficiency, HDPE pipes have become the preferred material of choice for nearly any project.

With competitive price and timely delivery, Valor Pipe sincerely hope to be your supplier and partner.

Today, HDPE pipes are a necessity as they are built to address modern-day challenges in contemporary development. As demand for water, gas and many more industries continue to soar, the use of HDPE is on the rise and is expected to keep growing.

Technical innovation and development are continually propelling HDPE as a superior material of choice in various applications.

Are Hdpe Pipes Worth It or Are We Biased to Their Use Due to Their Cost Effectiveness?

It wouldn’t be much of an article if the answer was yes. The costs are undoubtedly a significant plus, but what good would HDPE products be if they couldn’t stand the test of time?

HDPE pipes are a favourite for their ‘green’ attributes as they can safely convey potable water, wastewater, hazardous waste, chemicals and even compressed gases. We’ll look at the how the pipes are manufactured later in the article, but you can read more about HDPE material in its entirety:

To put it all in perspective let’s have a look at everything you need to know about HDPE pipes starting with a brief history.    

1. Historic Development of HDPE Pipe

The first ever polyethylene (PE) pipe was produced in . But, the manufacturing costs were extraordinarily high, and chemists had to find new and innovative ways of reducing costs while achieving better yields. After a staggering 20 years, they finally had a breakthrough.

In the ’s, the first HDPE pipe was created by chemists working at the Phillips Petroleum Co.

HDPE materials were first used to manufacture baby bottles since it was safe and didn’t break like glass bottles used at the time.

Here’s a short timeline of HDPE’s rise to fame:

In the late ’s, hard-wall HDPE pipe began taking over the functions of metal pipes in gas and oil gathering systems.

In the ’s PE started replacing iron pipes in nearly all distribution systems. Soon enough, HDPE took over the functions of clay pipes in agricultural drainage frameworks.

In the ’s, HDPE pipe made headway with advanced diameter width and was corrugated to become a better replacement for metal and concretes in the construction of stormwater culverts.

Today, HDPE is a thermoplastic resin that has continued to evolve throughout the centuries with constant developments in its performance capabilities. They are currently in the fourth generation stage of development. Its uses have diversified to replace glass in bottling and metal making of bails, gas tanks, and drums.

20 years into the future, HDPE pipes are expected to replace cast iron, concrete, and steel in all piping and conduit systems. Which promises a great future in a variety of sectors, including:  

Natural gas distribution

Potable (drinking) water

Plumbing

Industrial chemicals conveyance

Oil and gas production

Underfloor heating

Mining (slurry and leachates)

Road heating and cooling

A fairly quick rise to fame and it’s not slowing down anytime soon. 

2. How Are HDPE Pipes Manufactured

HDPE, like many other thermoplastic materials, does not possess cross-linked molecular chains and therefore can be melted after application of the right amount of heat. Manufacturing an HDPE Pipe relies heavily on the melting point of PE – the temperature at which the plastic gets to an entirely amorphous state (between 120 to 180 °C (248 to 356 °F). 

What Form is HDPE Before it’s Melted?

HDPE starts out as pellets, also known as thermoplastic resins. At this point, the first stage of quality control should take place. The raw material quality to be used to manufacture the pipes is the first essential (and necessary) step towards compliance with the specified requirements of a quality finished product.

Most companies use three different types of HDPE pellets which are well mixed before adding it to the hopper – plain, recycled and pellets with colorants for UV protection. The mix ratio depends on the specific application of the pipes. If the pipes are going to be buried or used as culverts the need for UV protection is limited, but not excluded as the pipes will still be exposed to UV during installation.

“Depending on the application of the pipe

the quality testing could be very in-depth,

or at least should be if the manufacturer

is worth their salt.”

Which means it would use less coloured pellets for productions. Typically, the process starts by feeding the thermoplastic resins into the extrusion machine using a hopper that feeds the pellets onto a rotating screw using gravity. The rotation of the screw moves the plastic along the heated barrel.

As the plastic runs along the channel depth decreases, forcing the plastic through a smaller area. The combination of compression and screw rotation causes friction and rotation, called sheer heating. This heat, with the heat of the barrel, melts the HDPE (at a temperature of about 230 degrees Celcius.) By the time it reaches the end of the line, the material is melted down and hot enough to go through the die.

The hot and melted HDPE is then forced through a die which then causes the solid particles to align in an extruding cavity. After which it can be molded, shaped, and extruded to be formed into a pipe. The hot liquid HDPE is then injected into the pipe mold while applying vacuum pressure for even distribution. An even flow is essential to maintaining the overall integrity of the final product. Any variations in the flow can produce weak areas.

The molten plastic then flows evenly around the mold to form and results in the diameter of the pipe being produced. A built-in cooling system hardens the plastic just enough to set the shape, enabling the pipe to be extracted from the mold. The pipe then passes through a cold shower to completely harden the plastic.

Random pipe samples are then selected for quality inspection. Depending on the application of the pipe the quality testing could be very in-depth, or at least should be if the manufacturer is worth their salt.

3. HDPE Pipe Quality Control

Where to purchase Polyethylene pipe

Where to purchase Polyethylene pipe

Buying HDPE pipe

Important tips and hints on Buying HDPE pipes

Because of significant uses and applications of HDPE pipe in the industry, there are solutions and tips that if you pay attention to, you can have a great purchase and your PE pipe will have the best quality and the most affordable price and you will be able to make significant savings on the project. Purchasing a Polyethylene pipe can be difficult, and you will be faced with inaccurate information that do not comply with your project. Therefore, we mention a few basic things when purchasing a Polyethylene Pipe that you need to pay attention to.
First, note that Polyethylene pipes must have a standard emblem. A valid brand name, manufacturer's name, production date, production line number, Polyethylene material type, and pressure class should be inserted on the pipe, and by referring to this information, you can get basic information about PE pipe, and if the pipe does not have one of these, quit purchasing the intended PE pipe.

We are great supplier HDPE pipe in the Middle East and Iran with the highest quality

HDPE pipes in Iran are manufactured according to the INSO -2 standard of the Institute of Standards & Industrial Research of Iran and the table in this standard is the manufacturing and quality control laboratories reference. Previously, German DIN was the reference standard, and at the time there was still no national standard for PE pipes, which has been resolved in recent years, but still this standard and their tables can be a reference for you, but it is not credible in reference and quality control laboratories. Now that we have ensured the marking on the PE pipe and its standardization, we should be sure of the manufacturer's plant and its history that the manufacturer is reputed and that its products are demanded by the market. In the phase of the manufacturer, be sure to coordinate the visit to the plant, which plays a very important role in purchasing PE pipe. When visiting the Polyethylene pipe manufacturer, consider the following, and be sure to check before visiting. Read the production, storage and transportation of HDPE pipes.

Important Notes in visiting PE pipe plants:

• The plant's location is in a renowned industrial complex and has unrestricted access to the freeways of the country.

• The working space and environment are regular and free from excessive elements

• The materials are stored in the shade and away from moisture

• Raw materials are injected into extruders through silo

• The age of manufacture of extruders and other components of the production line is low and these devices are new

• The gravimetric system is installed on the PE pipe production line

• The PE pipe production line is equipped with an ultrasonic system

The company is the world’s best HDPE Pipe Price supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

• A Cooling system inside and outside the PE pipe

• Auxiliary systems for production line (pool, electricity, compressors, etc.)

• The system and process control of the PE pipe dimensions during and after PE pipe production

• Quality control unit and laboratory

• The PE pipe storage location has a smooth surface

• Handling and loading procedures of PE pipes

The items mentioned above are important things that you should pay particular attention to in your visits to the HDPE Pipe manufacturing plant.
Buying Polyethylene pipe is very convenient, if you choose a good quality supplier and that manufacturer can provide you all the certificates, standards and conditions for an excellent purchase.

Buy from companies that respect employees, customers and the environment

The Complete Guide to HDPE Pipes: Everything You Need to Know

As a buyer of industrial products, you want to ensure that you make an informed decision. This is especially true for pipes, a critical component in various industries. HDPE pipes are among the most versatile and widely used types of pipes. In this guide, you’ll learn everything you need to know about HDPE pipes, including their types, sizes, and uses.

What are HDPE Pipes?

High-Density Polyethylene (HDPE) is a type of plastic made from high-density polyethylene resin. HDPE pipes are strong, durable, and flexible, making them an ideal choice for many applications. These pipes are also resistant to corrosion, chemicals, and UV rays, making them ideal for harsh environments.

Grading HDPE Pipes

HDPE pipes come in various types, each designed for specific applications. The most common types of HDPE pipes include the following.

For lower pressure requirements, piping systems can be made using PE 32 or PE 40.

PE 63 grade HDPE pipe is used for medium pressure requirements.

PE 80-RC is made from a material resistant to crack propagation and used in applications prone to cracking, such as sewage systems and water distribution networks.

PE 100-RC: This type is made from a material that is resistant to crack propagation and has a minimum required strength of 100 N/mm2.

According to European standards, these pipes are classified based on the pressure-holding capacity, ranging from nominal pressure PN class to PN20, which holds up to 20 bar pressure. You can identify them with their dedicated colour codes- Yellow for PN4, Red for PN6, Blue for PN10, and Green for PN16.

Sizes of HDPE Pipes

HDPE pipes come in various sizes, ranging from 20 mm to mm in diameter. The size of the pipe is determined by its internal diameter and is measured in millimetres. When choosing the right size of HDPE pipe, consider the volume of fluid that needs to be transported, the pressure that the fluid is subjected to, and the length of the pipeline.

Uses of HDPE Pipes

HDPE pipes are used in a wide range of applications, including:

Water supply:

HDPE pipes are used in the water distribution. Depending on the supply area, distribution network, and other factors, you can select a suitable pipe. PN 10 grade pipe is suitable for water supply in a multistory apartment.

Gas distribution

HDPE pipes are used in the gas distribution industry for natural gas and propane gas. This requires high tolerance to pressure, which PN-16 to PN-2 grade pipes can fulfil depending on your operation.

Sewerage

HDPE pipes are used in the sewerage industry for sewage and stormwater. They are resistant to corrosion, chemicals, and UV rays, making them ideal for harsh environments.

Agriculture

HDPE pipes are highly used in the agriculture industry for irrigation and drainage. Depending on the pump used, you can select from a range of pressure gradient pipes.

Mining

HDPE pipes are used in the mining industry for dewatering and slurry transport. They are resistant to abrasion and impact, making them ideal for use in harsh environments.

Telecom

HDPE pipes are used for cable protection in the telecom industry, as they provide a durable and cost-effective solution for protecting underground cables. General PN class pipes can be used for such purposes.

Advantages of HDPE Pipes

HDPE pipes have many advantages over traditional pipes made of materials such as concrete, steel, or PVC. Benefits of HDPE pipes include:

Durability

HDPE pipes are extremely durable and can last for decades without any maintenance. They are resistant to corrosion, chemicals, and UV rays.

Low cost

HDPE pipes are cost-effective compared to other piping materials.

Lightweight

HDPE pipes are much lighter than traditional pipes, making them easier to handle and transport.

Flexibility

HDPE pipes are extremely flexible, making them ideal for use in areas with a risk of soil movement or shifting. They are also easier to install compared to rigid pipes.

Easy installation

HDPE pipes can be joined together using heat fusion. They are easy to install and quick, without needing specialist tools or equipment.

HDPE pipes are a versatile and durable choice for a wide range of applications. They offer many advantages over traditional pipes made of concrete, steel, or PVC, including their low cost, lightweight, flexibility, and easy installation. Whether you are looking to install a water and sewage system, distribute natural gas, transport slurry in the mining industry, or irrigate crops, HDPE pipes are the ideal solution. Hope this article was a helpful guide to HDPE pipes for your business needs.

Where Can I Get HDPE Pipes?

L&T-SuFin is a leading platform for buying such industrial products online. You can find a range of HDPE pipes that suit your specific needs. You can also get logistics and financial support, making it easier to get products whenever needed. Visit L&T-SuFin to check out the range of HDPE pipes and other industrial products to give your business the boost it requires.

HDPE and PVC pipe have several similarities, but there are important differences that you should understand when choosing a product. At Piedmont Plastics, we want you to have the right plastic for your specific application, and that’s why we want to point out these differences.

Both PVC and HDPE are durable and lightweight options for piping in residential and commercial buildings. They carry a low risk of leaks, can carry gas and liquid, and can be used underground and in the water. Both are corrosion-proof and resistant to bacteria and chemical buildup as well. Yet, despite these similarities, distinct differences can dictate which choice is best for your needs.

Differences Between PVC & HDPE

PVC and HDPE have some distinct differences. In general, HDPE is a flexible, strong, and impermeable plastic. PVC is also strong but less flexible and more prone to cracking and failure.

Both pipes can handle standard water pressure surges common in pipelines. However, with PVC, the pipe can handle 100 psi above its pressure class. With HDPE, the pipe can withstand twice the pressure class. In addition, PVC can handle 5.5 feet per second of flow rate before changing its water pressure rating, while HDPE can handle 14 feet per second. Overall, HDPE is 2,500 more resistant to cracking and failure due to water hammer and fatigue.

PVC has a higher pressure class for static water, but HDPE has a higher working pressure rating. In addition, when creating pipe systems, HDPE has a greater bend radius, so it works well for applications that require a curved or bent design.

These two materials also vary in how they are joined. For example, HDPE is joined with heat fusion, while PFC must have a spigot or bell joint with cement. This means HDPE has less of a risk of leaks at the joints.

Finally, HDPE is more durable under extreme conditions. Unlike PVC, it is completely UV resistant and can be installed in extreme temperatures ranging from -40 to 140 degrees. It also has a service life of over a century.

Chemical Resistance and Compatability

HDPE and PVC differ in their resistance to certain chemicals. They have the same chemical resistance for the following:

Acetic acid, Ammonium Sulfate, Ammonium Hydroxide, Borax, Calcium hypochlorite, Ferrous sulfate, Hydrochloric acid, Hypochlorous acid, Phosphoric acid, Sodium bicarbonate, Sodium carbonate, Sodium chloride, Sulfur, Urine, Water, and Saltwater.

Some chemicals had distinct differences. These include:

• Chlorine at 50+ ppm: PVC is more resistant

• Nitric acid: HDPE is more resistant

• Lubricating oil: HDPE is more resistant

• Sodium HypoChlorite: PVC is more resistant

• Sulfuric Acid: HDPE is more resistant at most concentrations

Which Is More Cost -Effective: HDPE or PVC?

Even though HDPE is more durable and flexible than PVC and lasts longer without degradation, it costs a little more than its competition. However, when considering cost-effectiveness, you must look beyond the purchase price.

With HDPE, you don’t have to use cement to join pieces. Because it is joined with heat, the process requires minimal wait time. As a result, you do not have to wait for the cement to cure, and you can use your new pipes more quickly.

HDPE is also more cost-effective to transport. You do not have to protect it from sunlight as you do with PVC because it is UV resistant. This combination of less cost and time to install and less cost for transportation helps counter the higher purchase cost.

Finally, HDPE will last longer than PVC in most applications. Not having to replace and repair pipes as often adds up to major cost savings. In light of these factors, HDPE is typically the more cost-effective option.

Are you interested in learning more about 8 Inch HDPE Pipe? Contact us today to secure an expert consultation!