Plastic coating for pipelines and pipework
The plastic coating adheres tightly to the pipe surface, forming a robust protective barrier that effectively prevents contact between the pipe and external corrosive agents, thereby significantly extending the pipe’s service life.
Through thermal insulation, the medium within the pipeline experiences reduced heat loss during transportation. Whether it is hot water, steam, or a refrigerant, the fluid can maintain its set temperature for an extended period, thereby lowering energy consumption and helping enterprises significantly reduce operating costs.
As conduits for transporting critical media such as oil, natural gas, and water, pipelines’ safety and durability are directly linked to the stability of energy supplies and the reliable operation of public infrastructure.
Plastic-lined steel pipe is a steel–plastic composite pipe that uses a steel pipe as the base and features an inner lining of thermoplastic. The base pipe may be seamless steel, straight-seam welded steel, or hot‑dip galvanized steel. Through processes such as diameter‑reduction compounding, thermal expansion compounding, and rotomolding, the plastic liner is tightly bonded to the inner wall of the steel pipe. The outer steel layer provides mechanical pressure resistance and structural strength, while the inner plastic lining isolates the conveyed medium, delivering corrosion resistance and anti‑scaling performance. These pipes are widely used in domestic water supply and drainage, chemical fluid handling, environmental wastewater treatment, and process‑medium transport applications.
A reducer, also known as a reducing coupling, is a pipe fitting used to connect pipes of different diameters. It is broadly classified into two main types: concentric reducers and eccentric reducers.
A tee is a three‑port fitting used in piping systems to either divert flow or combine flows.
Elbows exhibit excellent fluid‑guiding performance, enabling smooth changes in the flow direction of the medium within a pipeline while reducing fluid resistance, thereby lowering energy consumption and enhancing system efficiency.
Flanges are universally applicable and interchangeable; whether in piping systems made of different materials or available in various sizes, or in a wide range of complex industrial equipment, their standardized design enables precise connections, significantly streamlining installation and maintenance.
Grouting pipes are primarily pipeline devices used to inject grout. Their core functions include sealing joints, reinforcing foundations, and preventing leakage; they can be pre-embedded prior to concrete placement or installed afterward.
“Small guide tubes” are advanced support elements in tunnel engineering—specifically, grouting small guide tubes or steel flower pipes—and serve as advance support systems in civil engineering. Their applications include pre‑support and ground reinforcement prior to tunnel excavation or foundation pit construction in weak, fractured strata.
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