PE Vs PVC Pipe: Which Should You Choose?

Stone, clay, terracotta, and wood were the first materials used to make pipes for irrigation and drainage in ancient times. Iron, lead, copper, and brass or bronze soon became popular piping materials for water supply.

By the 1950s, plastic pipes became popular options for plumbing, irrigation, and industrial uses. They continue to be in-demand solutions for various industries and solutions to this day.

Today, polyethylene (PE) and polyvinyl chloride (PVC) stand out among the different types of plastic pipes.

Drawing from our years of experience in designing and manufacturing plastic pipes, we intend to shed light on the PE vs PVC debate to help you choose between these two for your project needs.

PE vs PVC

Below is a look at polyethylene vs PVC plastics:

Polyethylene

Polyethylene is plastic made from ethylene, the only monomer involved in its synthesis. Because of this, it is lightweight, flexible, and impact- and chemical-resistant.

PE is categorized into four types according to density:

• Low-density polyethylene (LDPE)
• Medium-density polyethylene (MDPE)
• High-density polyethylene (HDPE)
• Ultra-high molecular weight polyethylene (UHMWPE)

Among these four, LDPE and HDPE are often used in plastic products. LDPE is chemical-resistant, which is why it is the top material used in plastic bags, bottles, molded laboratory equipment, and tubing.

HDPE is distinguished by its durability and resistance to different solvents. It can also withstand high stress levels and is mainly used in the production of containers, toys, and playground equipment. HDPE pipes are popular options for various applications across industries as well.

Polyvinyl Chloride

PVC is plastic made from the polymerization of vinyl chloride. It is lightweight, versatile, rigid, and durable.

This type of plastic can be manufactured to take a rigid or softer, more flexible form, which is why it has many applications across different industries.

PVC can withstand environmental degradation and has excellent insulation properties. It can also resist moisture, acids, and bases.

These qualities make this type of plastic a top choice for packaging, automotive, and leisure products. PVC duct pipes, fittings, and accessories are also widely used in different industries and applications.

Choosing Between PVC and PE Pipes

Both PVC and PE pipes have their own sets of advantages and disadvantages. You can settle the PVC vs polyethylene debate for your project by considering these factors in your choice:

The main use of the pipes

The pipework’s primary use or function should be your first consideration when choosing between PVC and PE pipes.

PVC pipes and piping accessories are commonly used for commercial, industrial, and domestic applications for water distribution, drainage, plumbing, and irrigation. On the other hand, the durability of PE pipes makes them more efficient for transporting chemicals, industrial fluids, and even gas. They are also great for potable water because they don’t leach harmful substances.

Check the compatibility of the liquid or substance with PVC or PE to ensure you choose the best material for your project.

The area and condition where the pipes will be installed

PE pipes are flexible and can be bent without breaking. As such, they are recommended for areas with shifting soil and extreme weather conditions.

The rigidity of PVC pipes can sometimes cause them to crack under heavy pressure or impact. Because of this, this type is best installed in areas with stable ground and weather conditions.

The installation process

PVC and PVC pipe fittings are your best choices if you need a piping system installed quickly. They can be connected using solvent cement and are lightweight and easy to cut.

On the other hand, PE pipes require heat fusion or special fittings, so they are more complex to install. However, their flexibility makes them easier to work with, even when the installation site has obstacles.

Your budget

PVC pipes are affordable and, as such, are great options if you need to save money without compromising the quality and longevity of your piping system.

PE pipes tend to be slightly costlier than PVC products but offer long-term benefits like resistance to cracking and flexibility. Although the upfront investment may be higher, polyethylene options can reduce your maintenance costs over time.

When you consider these factors in your decision, you can ensure the success of your piping system installation or upgrade project.

Frequently Asked Questions

Below are some additional details worth knowing about PVC and PE pipes:

1. What is the difference between PVC and polyethylene?

The main difference between PE and PVC pipes is their primary component. Polyethylene is typically a mixture of the same ethylene polymers, while PVC is produced through the polymerization of vinyl chloride.

Additionally, PVC is more affordable and less flexible than PE.

2. Which is better, PE or PVC?

Since PE and PVC have their own advantages and disadvantages, each one is more suitable for certain applications and installation sites. For example, polyethylene pipes are ideal for the distribution or transportation of chemicals, gas, and industrial fluids because they are more durable and chemical-resistant.

PVC pipes are a better option if you need a cost-effective piping system for plumbing, drainage, irrigation, and water distribution.

PE pipes are recommended if the piping system will be installed in a place subjected to extreme temperatures and weather conditions.

3. What is the advantage of PVC over polyethylene?

PVC is more affordable than polyethylene. Additionally, pipes made of PVC are easier to install.

4. Is PVC more expensive than PE?

No. PVC pipes cost less than PE pipes.

5. Is PVC or PE more durable?

PE is more durable than PVC because it is more impact-, temperature-, and chemical-resistant. 

Both PVC and PE are excellent materials for pipes. Consider your project needs to ensure you choose the right one for your piping system.

Contact us if you need additional help choosing between PVC and PE pipes for your projects.