Difference Between ABS and PVC | How to Connect ABS to PVC Pipe | Which is Better ABS or PVC Pipe
If you are about to install a new plumbing system, you may not know much about the differences between pipe types. There are different types of plumbing pipes. Many of these pipes are made of plastic, but not all plastic pipes are the same. The two most common types of plastic piping are ABS pipe and PVC pipe. Although both pipes are plastic, they have different properties.
One pipe may be better than another, which is what you need to know. You need to check local building codes before installing ABS and PVC pipes, as their use is prohibited in some areas. In this article, we will discuss the difference between ABS pipe and PVC pipe. Can both pipes be connected to each other? If yes, then how? and which one is better?
What Is the Difference Between ABS and PVC?
ABS and PVC pipes are plastic pipes, but their colors can identify them. PVC pipes are usually white or gray in color, while ABS pipes are black. ABS pipes and PVC pipes differ in many ways, both have different properties, and the method of installing them is also different.
Installing ABS pipe is usually a one-step process while installing PVC pipe requires two steps. This makes ABS pipes more labor efficient than PVC pipes and faster to install. Here are some key differences between ABS Vs PVC pipe.
BPA Content
Although both are plastic pipes, the main difference between the two is the BPA content they contain. ABS pipe contains BPA (Bisphenol A), while PVC pipe does not.
BPA is used to harden plastics, but it is a chemical that increases the risk of cancer. BPA is harmful to human and animal health. Due to this, ABS pipes are not used for potable water supply lines. PVC pipes are safe for potable water supply lines.
However, the Food and Drug Administration has said in recent years that current levels of BPA found in food are safe.
Soundproof
ABS and PVC are usually distinguished by their colors. Ignoring their colors, PVC is a flexible pipe, while ABS is a strong and shock-resistant pipe.
In addition, PVC pipes are much better at muffling the sound of flowing water, which ABS pipes cannot do. PVC pipes can also be called soundproof pipes, making them the best choice for indoor plumbing, while ABS pipes are good for underground or outdoor plumbing.
Strength and Rigidity
PVC pipes are generally stronger and more rigid than ABS pipes. PVC pipes are known for their high strength and rigidity. They have good structural integrity and can withstand higher pressures without deforming or bending.
ABS pipes are more flexible and have a lower rigidity compared to PVC pipes. They are designed to have some degree of flexibility to accommodate movement and minor stresses in the plumbing system.
PVC pipes can withstand higher pressures and are less likely to deform under stress or load. ABS pipes are more flexible and may bend or deform when exposed to heat or pressure.
Temperature Resistance
PVC pipes have good temperature resistance and can handle a wide range of temperatures. They are generally used for both hot and cold water. PVC pipes are also suitable for cold water applications and can withstand freezing temperatures without cracking or brittleness.
ABS pipes have lower temperature resistance as compared to PVC pipes. It is commonly used for low-temperature applications, such as drain, waste, and vent (DWV) systems. ABS pipes are generally not recommended for hot water applications.
Cost-Efficiency
Both ABS and PVC pipes have almost similar prices. But joining ABS pipes requires only one step, which is done by joining with special cement.
While the ends of PVC pipes are treated with a purple primer before connecting, they are connected with special cement after drying, which is a two-step method.
This makes ABS pipe quick to install and a cost-effective choice.
Building Code
ABS is often a “regrind” or recycled resin plastic material, which leads to problems such as fatigue and failure of ABS pipes. Because of this, it is prohibited in some areas, while PVC pipes are not.
ABS pipes still serve as drains and sewer lines in many homes. As long as there is no problem with these pipes, there is no need to replace them with other pipes. If there is any problem with ABS pipes, you should replace them with PVC pipes.
Building codes and regulations regarding the use of ABS (Acrylonitrile Butadiene Styrene) and PVC (Polyvinyl Chloride) pipes can vary by jurisdiction. It’s crucial to consult the specific plumbing codes and authorities in your area for accurate and up-to-date information.
Must Read : Types of PVC Pipe | Difference Between Schedule 40 and Schedule 80 | Sch 40 and Sch 80 Dimension Chart
Can You Attach PVC to ABS Pipe?
ABS and PVC are generally not recommended to be connected in the same piping system. Plumbing codes in many areas prohibit connecting ABS to PVC, so it’s important to check local codes before attempting to connect them.
However, if the plumbing codes in your location allow, ABS and PVC pipes can be connected with fittings instead of glue.
How to Connect ABS to PVC Pipe?
When you are connecting PVC to ABS pipe, you cannot connect it with glue or pipe cement. Instead, a rubber sleeve and metal jacket can be used to connect the pipes. This is a rubber transition coupling, which connects ABS and PVC pipes and fits both with a stainless steel clamp.
A rubber sleeve is placed on the ends of the two pipes to connect them. The rubber sleeve is then tightened with a clamp using a stainless steel jacket.
Must Read : Types of Metal Pipes | Seamless Vs Welded Pipes | Seamless And Welded Pipes Manufacturing Process
Which Is Better ABS Pipe or PVC Pipe?
Check local building codes first before choosing ABS pipe and PVC pipe. Some building codes will specify where you can use PVC and ABS piping. Only then should you decide which of the two pipes to use.
But if your area doesn’t require a code, then it’s up to you to decide which pipe will work best for you. Here we will help you choose between the two pipes.
If you are considering ABS and PVC for drinking water supply lines, you are left with only one option, PVC pipe. You cannot use ABS pipes as drinking water supply lines, as they contain BPA chemicals, which can harm your health.
But, If you have to choose between PVC or ABS pipes for sewer, waste, and vent applications, choosing between the two pipes is a matter of preference. Both plastic pipes are best for drain, sewer, and vent applications.
ABS pipes are quick to install and cost-effective. It is best used in underground environments, where the climate is cool and away from exposure to the sun’s ultraviolet rays.
PVC pipes muffle the sound of flowing water better than ABS pipes. It is a great choice for indoor plumbing as it transfers the sound of running water. You can use PVC pipes outdoors and underground.
Must Read : Difference Between PVC and CPVC | Can You Attach PVC to CPVC Pipe | Which Is Better PVC or CPVC Pipe
What’s the Difference Between ABS and PVC?
ABS and PVC pipes are both plastics, but their colors differ. PVC pipes are usually white or gray in color, while ABS pipes are black. ABS and PVC pipes differ in many ways, both have different properties, and the method of installing them is also different.
The following are the factors that different ABS and PVC pipes.
- ABS pipe contains BPA (Bisphenol A), while PVC pipe does not.
- PVC pipes are much better at muffling the sound of flowing water, which ABS pipes cannot do.
- While the ends of PVC pipes are treated with a purple primer before connecting, they are connected with special cement after drying, which is a two-step method.
- ABS is prohibited in some areas, while PVC pipes are not.
How to Connect ABS to PVC?
For connecting PVC to ABS pipe, a rubber sleeve and metal jacket can be used. This is a rubber transition coupling, which connects ABS and PVC pipes and fits both with a stainless steel clamp.
A rubber sleeve is placed on the ends of the two pipes to connect them. The rubber sleeve is then tightened with a clamp using a stainless steel jacket.
Is ABS Stronger Than PVC?
PVC pipe is a flexible pipe, while the BPA content in ABS makes it Harder. ABS pipe is generally significantly stronger than PVC when installed in cold weather but also weakens when exposed to sunlight in outdoor plumbing.
Which Pipe Is Best for Underground Drainage?
If you have to choose between PVC or ABS pipes for the drainage line, choosing between the two pipes is a matter of preference. Both plastic pipes are best for drain, sewer, and vent applications.
But, ABS pipes are quick to install and cost-effective. It is best used in underground environments, where the climate is cool and away from exposure to the sun’s ultraviolet rays.
Is ABS Cheaper Than PVC?
ABS and PVC Both pipe’s prices have almost similar. But joining ABS pipes requires only one step, which is done by joining with special cement. While the ends of PVC pipes are treated with a purple primer before connecting, they are connected with special cement after drying, which is a two-step method.
This makes ABS pipe quick to install, labor efficient, and a cost-effective choice.
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