A reducer is a scientific name, and it's also commonly known as an eccentric reducer. I believe everyone is familiar with it. Its function is to connect pipes, connecting two pipes of different specifications. Sometimes it's used to make a large pipe smaller, and sometimes it's used to make a small pipe larger. In any case, it serves the purpose of connecting two pipes of different diameters.
It's called an eccentric reducer because one end is larger than the other. Does it have a large end and a small end? We've described the function of reducers above. We understand that a reducer is a pipe that can connect large and small pipes. For example, if a 10-inch pipe needs to be converted to an 8-inch pipe, a reducer is needed as a transition piece or connector. Because the pipe itself can't be converted, the wall thickness at both ends generally needs to be consistent. In other cases, such as when we need to create a small branch from the main pipe, a reducer is sometimes used as a transition piece. While we generally design piping with rigor and precision, there's no guarantee that there won't be any changes during on-site installation. Designs often differ from actual conditions, such as when temporary changes or equipment additions are required during actual operations or construction. These situations require on-site adaptability.
Having said all that, let's move on to reducers. Reducers are categorized into two types: concentric and eccentric. They share the same function: both ends of the same specification have identical dimensions, wall thickness, and height. The only difference is the concentricity of the larger and smaller ends. Concentric reducers have their upper and lower ends centered on a vertical line, while eccentric reducers have their upper and lower ends centered on different lines. This might seem confusing, but please see the image below:
The image above clearly illustrates how to choose a concentric or eccentric reducer. The decision depends on the intended application.
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