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A pipeline is a long tube, that is used to transport liquids or gases over long distances. Pipelines are made of metal. While the transport of liquids and gases is common, some pipelines are used to transport coal or iron ore, which are mixed with mud. Such pipelines are sometimes called slurry pipelines. Even though a pipeline is very expensive to build, the low operating cost often makes it the cheapest transport.
Pipeline networks are made of different components. These are:
- The supply station is where the pipeline starts. Very often, there are tanks that act as a buffer
- There are several pumps and compressors, which move the product through the pipeline.
- Partial delivery stations allow to deliver part of the product
- Block valve stations use valves to isolate the pipeline into independent segments.
- Regulator stations are used to release some of the pressure
- The final delivery station is where the product is delivered to the consumer. Very often tanks are used as a buffer.
A pipeline in Portugal