Product Description:

Steel-lined polyurethane composite pipe is a composite pipe made by using a steel pipe as the base material and lining it with high-wear-resistant, highly elastic, and highly corrosion-resistant polyurethane material through a special manufacturing process. Polyurethane composite pipe features excellent comprehensive properties, including wear resistance, acid and alkali resistance, anti-scaling, radiation resistance, hydrolysis aging resistance, high elasticity, and resistance to mechanical impact.

Feature: 　　
Excellent wear resistance: Due to the good elasticity of the polyurethane lining, when subjected to medium impact, the polyurethane is forcibly compressed under external force. Once the force is removed, the polyurethane returns to unyielding with the yielding” greatly reduces abrasion caused by direct and intense erosion to inner wall of pipe.Its wear life is dozen of times than steel pipe. Anti-scaling:The inner wall is smooth and transparent, and the absolute roughness of the inner wall is 0.082, which can reduce the operating expenses. Little Resistance During Operation:Unlike rubber products,there’s no swelling phenomenon in the water,so its usability will not be affected. Good Water Stability and Ageing Resistance:Elastomer of polyurethane lining has a symmetrical molecular structure, which forms external nonpolar state.Thus the adsorption of CO32-, HCO3-, OH-  in the slurry can’t be formed.And the inner surface is smooth and has good elasticity, which prevents the adhesion of scale layer, so it has better anti- scaling performance. Good Combination:Polyurethane lining and steel pipe have a good combination.With a unique process, the combination of pouring polyurethane elastomer and steel pipe reaches 100%.Because of unique flanging process,fall off and partial tear will not appear. Weight Light&Convenient Installation:Because of the use of thin wall, the weight is relatively light. Many connection methods can be used in the installation: flange connection, flexible pipe joint connection, welding connection.

Main Application:

Polyurethane-lined composite steel pipes possess excellent comprehensive properties, including wear resistance, acid and alkali resistance, anti-scaling, radiation resistance, hydrolysis aging resistance, high elasticity, and resistance to mechanical impact. These pipes are widely used in various industries such as power generation, coal, mining, building materials, and chemical engineering for conveying abrasive particulate materials and corrosive medium like coal powder, ash slag, mineral powder, aluminum liquid, and slurry.　
Power Industry: Polyurethane composite pipes are used in ash removal pipelines, slag pipelines, and ash water recycling pipelines in thermal power plants. They are particularly advantageous for conveying fresh water, seawater, and acidic medium.　
Coal Industry: These pipes are used in heavy-medium coal washing and long-distance coal slurry transportation systems in coal preparation plants, as well as for backfilling sand and silt in coal mining.　
Mining Industry: They are employed in iron ore slurry, concentrate, and tailings transportation systems, closed-loop pipelines in mineral flotation systems, and water-sand transportation for gold mining.　
Building Materials and Chemical Industry: These pipes are used for conveying coke particles in steel plants, pool mud in aluminum plants, coal powder in cement plants, and corrosive acids, alkalis, salts, and combined solid-liquid media. They are also used in oil extraction pipelines, dredging projects, urban water supply systems, and aluminum liquid transportation, demonstrating significant performance benefits.