Plastic-coated pipe: It is a new type of pipe material recently developed in China. It has a plastic-coated protective layer on the inside and outside, and a composite structure of reinforced welded steel pipe or seamless pressure-bearing steel pipe in the middle, which overcomes the problem of the steel pipe itself. The existing defects of easy rusting, corrosion, high pollution, low strength and easy deformation of plastic pipes, integrate the same advantages of steel pipes and plastic products, and are environmentally friendly products promoted and used by the country.
Plastic lined pipe: It is based on ordinary carbon steel pipe, lined with thermoplastic with excellent chemical properties, and is cold drawn composite or rotational molded. It has the mechanical properties of steel pipe and plastic pipe. It has excellent corrosion resistance, slow scaling, and is not easy to grow microorganisms. It is an ideal pipeline for transporting media such as acids, alkalis, salts, and corrosive gases.
The largest use of plastic-coated pipes is for hot-dip plastic cable protection conduits. There are also the following basic uses:
1. Industrial circulation, fire protection, and sewage drainage: used as pipelines for transporting industrial water supply.
2. Fire-fighting plastic-coated steel pipes can be used as fire-fighting pipes in urban buildings, key projects, urban rail transit, etc. Plastic coated fire pipe main pipe and branch pipe.
3. Sewage drainage: used as urban sewage plants, sewage drainage pipelines, domestic sewage treatment, and industrial sewage transportation pipelines.
4. Seawater utilization: Introduce seawater for flushing toilets, use seawater desalination pipeline systems, ships and other anti-corrosion recycled plastic-coated steel pipes.
5. Polyethylene plastic-coated pipes are used for rainwater collection, utilization, and transportation, and are used for rainwater utilization, collection, and transportation pipelines in high-rise buildings.
6. Mining pipelines: underground mine water supply and drainage plastic-coated steel pipes, underground mine ventilation plastic-coated steel pipes, gas drainage plastic-coated steel pipes, spray-coated plastic steel pipes and other pipes are connected to the system.
7. Others: including residential buildings, industrial water supply, food processing, medical treatment, machinery and other fields.
Applications of plastic-lined pipes:
1. Chemical industry:
Acid, alkali, salt manufacturing, fertilizers, pesticides, chemicals, rubber and plastics, etc. Industry process pipes and discharge pipes for transporting corrosive gases, liquids, and solid powders.
2. Electric power engineering:
Transmission of process water backwater, chemical water, waste residue and fly ash in power plants.
3. Smelting industry:
Transportation of corrosive media in metal smelting.
4. Mining industry:
Ore powder, slurry, slag, tailings discharge, backfilling, ventilation, gas drainage and shotcrete, etc.
5. Pharmaceutical industry:
Transport various corrosive media, sewage, and wastewater.
6. Oil and gas fields:
Oily sewage, gas field sewage, oil and gas mixtures, oil production and gathering and transportation process pipelines.
7. Agricultural sprinkler irrigation:
Deep well pipes, water filter pipes, underdrain conveying pipes, drainage pipes, and irrigation water supply pipes.
8. Municipal industry:
Urban building water supply, drinking water, fire water, heating network return water, gas, natural gas transmission, highway buried drainage and green belt irrigation and other channels .