I. Structure
1.Steel pipe base (spiral steel pipe / longitudinally welded pipe)
2.Internal wall: cement mortar lining
II. Main Functions
1.Internal anti-corrosion: water-resistant, soil-resistant, and resistant to mild acid and alkali
2.Abrasion resistance: resistant to wear from sewage, sediment and slurry
3.Scale inhibition & smooth surface: reduces flow resistance and is not easy to scale
4.Hygienic & safe: suitable for municipal drinking water (qualified cement)
III. Advantages
1.Low cost and long service life
2.Suitable for large-diameter pipelines
3.Strong bonding with steel pipe, not easy to fall off
4.High stability for buried and long-distance pipelines
IV. Typical Applications
1.Municipal buried water supply pipelines
2.Urban sewage and rainwater pipe networks
3.Power plant circulating water pipelines
4.Water diversion, water transfer and drainage projects
5.Transportation of industrial neutral / weakly corrosive media