gas pipeline coating technology

The technology of gas pipeline coating is the thickness of seamless steel pipeline wall to spray epoxy coating which not only avoid the damage of acidic gases to corrode the pipe wall subject in the transportation, but also prevent other contaminants in the gas impurities deposited on the etched surface of the pipe wall side. This coating technology can reduce the pipeline flow area and pipeline transmission capacity. There are two ways to reduce the energy consumption of gas pipeline: one is optimized the design of pipeline diameter, working pressure ratio and compressor stations settings; the other is to reduce friction losses gas pipeline.

Gas Pipeline Coating


The only way to reduce friction loss of gas pipeline is to cover the internal surface of the pipe inner coating layer drag reduction. The important role of drag reduction reduces hydraulic friction coefficient and gas pressure. And for the large diameter gas pipeline, the drag reduction has much more important effectiveness.

The main function is drag reduction and corrosion for gas pipeline coating technology. So the drag reduction performance coating basic requirements: adhesion strength, abrasion resistance, heat resistance, chemical stability and glossiness. There are many elements in the coating composition including film forming pigments, additives and solvents. The film forming material is essential. To form a nice performance of pipe wall layer, the coating elements need to be selected properly, formulation science and reasonable.