As is well known, besides water supply and drainage,
plastic-coated steel pipes are also widely used in automatic sprinkler fire extinguishing systems, underground water drainage and dredging pipelines, central air conditioning cooling circulating water pipelines, cable protection pipes, industrial anti-corrosion pipes, coal mine gas extraction and ventilation pipelines, and oil and natural gas transportation pipelines. These applications are continuously expanding with advancements in technology.
Plastic-coated steel pipes for water supply combine the strength of steel pipes with the corrosion resistance, wear resistance, and low fluid resistance of plastic pipes, making them a new type of water supply pipe. They overcome the shortcomings of galvanized pipes, such as rusting, yellow water production, scale buildup leading to small pipe diameters and blockages, significantly improving water quality and preventing secondary pollution.
Specific applications of plastic-coated steel pipes:
1. Various types of circulating water systems (civilian and industrial circulating water): High-performance plastic-coated steel pipes have a corrosion-resistant lifespan of up to 50 years. Underground heating network water supply systems: Buried heating network water supply and hot and cold circulating water systems. Using specially coated pipes for central air conditioning water circulation systems can extend the service life of pipelines and equipment, while also being energy-saving and environmentally friendly. It ensures the long-term stable operation of the central air conditioning water system and significantly reduces subsequent maintenance costs.
2. Fire Water Supply System.
Fire and sprinkler systems are characterized by long periods of stagnation and sudden emergencies. Ordinary steel pipes are prone to scaling on their inner surface. In emergencies, internal structures can reduce the pipe diameter or cause blockages, delaying rescue efforts with potentially disastrous consequences. Professional fire-fighting coated steel pipes use flame-retardant epoxy resin, offering excellent high-temperature resistance. They are specifically designed to address corrosion from extinguishing agents and provide corrosion resistance and flame resistance in both water-bearing and dry conditions, significantly extending the service life of fire water supply and automatic sprinkler systems. This enhances the system's value and reduces overall pipeline maintenance costs.
3. Water Supply and Drainage for Various Buildings (particularly suitable for hot and cold water systems in hotels, restaurants, and high-end residential areas). Large-diameter plastic-coated steel pipes use steel pipes as the base pipe. While fully withstanding the design pressure, relatively thinner base pipes can be selected, significantly reducing user procurement costs. Their excellent cost-effectiveness makes them competitive in the large-diameter water supply and drainage field.
4. Transportation of various chemical fluids (resistant to acid, alkali, and salt corrosion). Used for transporting corrosive media in industrial chemicals, petrochemicals, non-ferrous metal smelting, coking, and light industries. Industrial plastic-coated steel pipes are mainly used in petrochemical, power, and light industry plants for transporting acids, alkalis, salt solutions, and various chemicals and anhydrous substances.
5. Buried pipes and road crossing pipes for wires and cables. These cable protection sleeves are internally and externally corrosion-resistant, with a smooth interior, possessing strong chemical stability and corrosion resistance, good mechanical properties, and high compressive strength. The plastic-coated steel pipes provide excellent protection for cables and are suitable for high and low-voltage cable installation. Pipe connections can be made using socket joints, facilitating on-site use.
6. Ventilation, water supply, and drainage pipes in mines and shafts. Coal Mine Systems: Pipelines for underground water supply and drainage, fire sprinkler systems, underground spraying, positive and negative pressure ventilation, and gas extraction.
7. Municipal Systems: Plastic-coated steel pipes are needed for corrosion-resistant pipelines in building water supply, natural gas, seawater transportation, and sewage discharge.
8. Protective Engineering: Buried cable protection pipes, fire sprinkler systems, and sports field/kindergarten fencing projects.
9. Other corrosion-resistant pipelines suitable for plastic-coated steel pipes.
Threeway Steel is known as a professional supplier engaged in manufacturing and distributing a wide range of steel pipe, and our headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
