Main classification of pipelines

1. Classified by material: metal pipes and non-metal pipes.
2. Classified by design pressure: vacuum pipeline, low-pressure pipeline, high-pressure pipeline, ultra-high pressure pipeline.
3. Classified by conveying temperature: low temperature pipeline, normal temperature pipeline, medium temperature and high temperature pipeline.
4. Classified by transport medium: water supply and drainage pipeline, compressed air pipeline, hydrogen pipeline, oxygen pipeline, acetylene pipeline, thermal pipeline, gas pipeline, fuel pipeline, highly toxic fluid pipeline, toxic fluid pipeline, acid-base pipeline, boiler pipeline, refrigeration pipeline, purified pure gas pipeline, pure water pipeline.