Pipe type
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What are the common types of pipelines? What kind of pipes are generally used for circulating water? Which type of pipe should be chosen for high pressure? Are there any specific design specifications?
There are standards to refer to! For circulating water, PPR pipes are sufficient.
What are the common types of pipelines? Answer: For steam pipelines, gas pipelines, and process pipelines, what kind of pipes are generally used for circulating water? Answer: Carbon steel pipes are an option. Which type of pipe should be chosen for higher pressures? Answer: The way LZ phrased this is not quite correct; when selecting pressure pipelines, the most important factor to consider is the medium being transported. Are there any specific design specifications? Answer:
Refer to the standards for details; carbon steel pipes can be used for circulating water. Plastic pipes are acceptable for use indoors, but not outdoors.
Galvanized carbon steel pipes can be used for circulating water.
Where exposed to the outside, stainless steel pipes should be used as much as possible; otherwise, carbon steel pipes will suffice
Common standards for conveying pipelines: Seamless steel tubes are used for transporting fluids. For circulating water pipes, spiral tubes are generally used when they are buried underground; galvanized tubes are used for those above ground, as well as those with epoxy coatings on both the inside and outside. For pipes that are subject to high pressures, the material selection is determined based on the pressure level and the type of fluid being transported. The standard GB50316-2000 (2008 edition) “Code for Design of Industrial Metal Pipelines” is applicable here, as well as GB20801-2006 “Code for Pressure Pipelines – Industrial Pipelines” mentioned earlier, along with GN204 “Unified Provisions for the Design of Pressure Pipelines”. However, it’s not clear what version of these standards is currently in use