What sizes do upvc drainage pipes come in?

Mar 24, 2026

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Helen Jiang
Helen Jiang
Helen is a Research & Development Specialist, focusing on the creation of cutting-edge pipe materials like HDPE and PP compression systems. She is dedicated to pushing the boundaries of material science.

First things first, let's talk about why the size of upvc drainage pipes matters. The size determines how much water or waste the pipe can handle. If you choose a pipe that's too small, it can lead to blockages and backups, which is a huge headache. On the other hand, if you go for a pipe that's too large, it can be a waste of money and space. So, getting the right size is crucial for a proper drainage system.

 

Now, let's dive into the common sizes of upvc drainage pipes. The most frequently used sizes range from 40mm to 160mm in diameter.

 

40mm UPVC Drainage Pipes

The 40mm pipes are on the smaller side. They're commonly used for things like sink and basin connections. In a domestic setting, your kitchen sink or bathroom basin will often be connected to the main drainage system using these 40mm upvc pipes. They're great for handling the relatively small amount of water that comes from these fixtures. For example, when you're washing your hands or doing the dishes, the 40mm pipe can easily carry the water away. You can find high - quality POLYGON UPVC Drainage Pipe in this size to ensure a reliable connection.

 

50mm UPVC Drainage Pipes

Next up is the 50mm pipe. This size is a bit larger than the 40mm and is often used for showers and small - scale floor drains. Showers produce more water than sinks, and the 50mm pipe can handle the increased flow. It's also suitable for small floor drains in areas like utility rooms or small bathrooms. The 50mm pipes provide a good balance between capacity and space requirements. And when it comes to fitting these pipes together, you can rely on UPVC Drainage Fittings to make a secure connection.

 

75mm UPVC Drainage Pipes

The 75mm pipes are a step up in terms of capacity. They're commonly used for larger floor drains, such as those in commercial kitchens or large bathrooms. In a commercial kitchen, there's a lot of water from washing dishes, cleaning the floors, and other operations. The 75mm pipe can handle the high volume of water and waste efficiently. These pipes are also used for connecting multiple fixtures together. For instance, you might use a 75mm pipe to connect a few sinks in a row to the main drainage line.

 

110mm UPVC Drainage Pipes

The 110mm pipes are one of the most popular sizes in both domestic and commercial applications. In a domestic setting, they're often used as the main soil and waste pipes. This means they carry the waste from toilets, as well as the combined water from other fixtures like baths, showers, and sinks. In commercial buildings, 110mm pipes are used for larger drainage systems, such as those in office buildings or small factories. They can handle a significant amount of water and waste, making them a reliable choice for many projects.

 

160mm UPVC Drainage Pipes

The 160mm pipes are the largest of the commonly used sizes. They're typically used for large - scale commercial and industrial applications. In a big factory or a large shopping mall, there's a huge volume of water and waste that needs to be drained away. The 160mm pipes can handle this high - flow situation with ease. They're also used in some large - scale residential developments where multiple buildings are connected to a central drainage system.

 

It's important to note that these are just the standard sizes. In some cases, you might need custom - sized upvc drainage pipes. Maybe you're working on a unique project with specific requirements. As a supplier, we understand that every project is different, and we can work with you to find the right solution. Whether it's a non - standard size or a special type of fitting, we're here to help.

 

When choosing the size of the upvc drainage pipes for your project, there are a few factors you need to consider. First, think about the volume of water or waste that the pipe will need to carry. This depends on the number and type of fixtures that will be connected to the pipe. For example, if you're installing a new bathroom with multiple showers and sinks, you'll need a larger - sized pipe compared to a simple single - sink setup.

Second, consider the slope of the pipe. The pipe needs to have a proper slope to ensure that the water and waste flow smoothly. A steeper slope can sometimes allow you to use a smaller - sized pipe, but it also depends on the overall design of the drainage system.

 

Finally, think about the local building codes and regulations. Different areas might have specific requirements regarding the size and installation of upvc drainage pipes. Make sure you comply with these regulations to avoid any issues down the road.

 

If you're in the process of planning a drainage project, whether it's a small domestic renovation or a large - scale commercial development, I'd love to help you out. We have a wide range of upvc drainage pipes and fittings in all the standard sizes, and we can also assist with custom orders. Don't hesitate to reach out to us to discuss your project requirements. We can provide you with expert advice on the right sizes and products to use, and we'll work with you to ensure a successful installation.

In conclusion, understanding the different sizes of upvc drainage pipes is essential for any drainage project. From the small 40mm pipes for sinks to the large 160mm pipes for industrial applications, each size has its own purpose. And as your upvc drainage supplier, we're here to make sure you get the right products for your needs. So, if you're ready to start your project or have any questions about upvc drainage pipes, just give us a shout.

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