Both metal and plastic piping can be used for most plumbing, drainage, and fluid relocation projects. Plastic piping materials, such as PVC vs. HDPE, cost substantially less than metals like copper and steel, making it an economical choice for projects. Also, plastic has some advantages over metal pipes when it comes to construction materials. It is lighter in weight, resistant to corrosion, easier to install, and more cost-effective, just to name a few.
PVC vs. HDPE for Piping Applications
PVC (Polyvinyl Chloride) and HDPE (High-Density Polyethylene) are two of the most popular choices for piping in construction and plumbing. Both are long-lasting and durable thermoplastics, but their differences lend themselves to different piping application uses. Here, we discuss their individual strengths, applications, and uses, as well as how to choose the right piping (PVC vs. HDPE) for your project.
PVC Pipes: Strengths and Applications
Polyvinyl chloride (PVC) is one of the most widely used thermoplastics. Rigid PVC is very durable and long-lasting with good tensile strength, making it ideal for pipes that handle liquids.
Key Benefits
- Rigid and durable. PVC is available in rigid and flexible forms. Rigid PVC is available in two grades: type 1, which is used in general purpose applications; and type 2, which has increased impact resistance.
- Resistant to chemicals and corrosion. Unlike metals, PVC is chemical and corrosion-resistant. Corrosion can cause metal to crack and break.
- Cost-effective and easy to install. Plastic’s price point compared to metals makes it an attractive choice—especially since PVC is easier to cut and install. PVC doesn’t require welding; piping is joined via clamps, mechanical couplings, or solvents.
- Smooth interior surface for efficient water flow. Plastic piping’s smooth interior surface has less friction so water flows uninhibited to help prevent clogs.
Common Uses for PVC:
- Residential and commercial plumbing
- Drainage and sewage systems
- Irrigation and water distribution
HDPE Pipes: Strengths and Applications
High-density polyethylene (HDPE) is an incredibly sturdy plastic. Here’s what else to know about HDPE for piping applications.
Key Benefits:
- Flexible and impact-resistant. Its flexibility allows it to be used in a variety of spaces, such as installed underground or around corners and tight spaces. The high density of this plastic helps it withstand impact as well.
- Highly resistant to cracking and leaks. The high density of this plastic makes it extremely durable which prevents cracks that can cause breakage and leaks.
- UV and weather-resistant, ideal for outdoor and underground use. HDPE can handle higher temperatures compared to PVC. HDPE piping can also withstand freezing temperatures, however, it can burst if the water inside freezes—just like a metal pipe.
- Can handle higher pressure than PVC. The high density of HDPE vs PVC makes it better at handling higher pressure. The plastic provides minimal friction, which conserves water pressure.
Common Uses for HDPE:
- Underground water and gas pipelines
- Industrial and mining applications
- Municipal drainage systems
Choosing Between PVC vs. HDPE for Piping with Acme Plastics
Thus, we hope the above information is useful regarding PVC vs. HDPE, and which one is right for your project. To recap, PVC is best for rigid, low-cost installations, such as residential/commercial plumbing, drainage, and irrigation. HDPE is best for high-durability and flexible needs in industrial applications, as it can handle higher pressure, higher temperatures, and greater impacts. In addition, HDPE has greater resistance to corrosives, chemicals, acids, alcohols, and bases, as well as being weather resistant. These qualities make HDPE better for underground use (water and gas pipelines), industrial and mining applications, and larger municipal drainage systems.
The material differences in PVC vs. HDPE align them with different uses, but they’re both more cost-efficient compared to metal piping, with PVC being the more economical of the two. Costs aside, they are both durable with a long life-expectancy (HDPE’s long-term durability is excellent due to the resistant properties mentioned above).
Acme Plastics provides high-quality PVC and HDPE piping solutions to fit your needs. We stock PVC Rods for pipes, including sanitary, sewer, water, drainage, gutters, downspouts, and irrigation; and HDPE Rods for heavier-duty applications, such as chemical-resistant piping systems, corrosion protection for steel pipelines, geothermal heat transfer piping systems, water pipes for domestic water supply, agricultural processes.
Available in a variety of diameters and lengths, we are happy to help you find the piping solutions you require if you don’t see the options you need. Contact us for more information.
