What does DN100 mean?
DN100 is a common term in the engineering, construction or piping fields, but many people are not clear about its specific meaning. This article will explain the meaning of DN100 in detail, and combine it with the hot topics and hot content on the Internet in the past 10 days to help readers better understand this concept.
1. Definition of DN100

DN100 is the abbreviation of "Nominal Diameter", which means that the nominal size of the pipe is 100 mm. The nominal diameter is not the actual inner or outer diameter of the pipe, but a standardized size code used to simplify the design and construction of the piping system. DN100 is usually used to describe the dimensions of pipes, valves, flanges and other equipment.
2. Practical application of DN100
DN100 is widely used in the following fields:
| field | Application scenarios |
|---|---|
| Water supply and drainage system | DN100 pipes are often used in urban water supply and drainage systems to transport large flow liquids. |
| industrial piping | In chemical, petroleum and other industries, DN100 pipelines are used to transport gas or liquid media. |
| HVAC | DN100 pipes can be used for hot and cold water transportation in central air conditioning systems. |
3. Comparison between DN100 and other sizes
Here is a comparison of DN100 with other common nominal diameters:
| Nominal diameter (DN) | Approximate inner diameter (mm) | Common uses |
|---|---|---|
| DN50 | 50 | Small water supply, household pipes |
| DN100 | 100 | Urban water supply, industrial pipelines |
| DN150 | 150 | Large industrial pipelines, main water supply |
4. The correlation between hot topics on the Internet in the past 10 days and DN100
Recently, DN100 and related topics have triggered discussions in many fields:
| hot topics | Related content |
|---|---|
| Urban pipeline renovation | Many places have started renovation projects for old pipelines, and the demand for DN100 pipelines has surged. |
| Industry 4.0 | In intelligent pipeline systems, DN100 size sensors and valves have become a hot technology topic. |
| Environmental protection policy | The material environmental protection standards of DN100 pipes have become the focus of the industry. |
5. How to choose DN100 pipes
When selecting DN100 pipe, you need to consider the following factors:
1.Material: Common DN100 pipe materials include PVC, cast iron, stainless steel, etc., which need to be selected according to the use environment.
2.pressure level: The pressure-bearing capacity of DN100 pipelines must meet system requirements.
3.Connection method: Different methods such as flange connection and threaded connection are suitable for different scenarios.
6. Summary
As an important size in pipeline systems, DN100 is widely used in water supply and drainage, industry, HVAC and other fields. Through the detailed explanation and structured data display of this article, readers can more clearly understand the meaning of DN100 and its practical application. At the same time, combined with recent hot topics, the importance of DN100 in urbanization, industrial upgrading and environmental protection policies has become increasingly prominent.
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