the inner and outer walls of plastic-coated steel pipes are coated with epoxy resin, the surface is smooth, the fluid resistance is reduced, the flow rate is increased, no scale is formed, and microorganisms generally do not grow. the service life of the fire water supply (gas) pipeline is greatly improved by coating the water delivery, buried pipe, acid, alkali, and salt corrosion of the fire water supply (gas) pipeline with plastic. the service life can reach more than 50 years. the fire pipe pressure range is 0-2.5mp. fire protection plastic coated steel pipes are based on steel pipes. the outer wall adopts a thermosetting powder coating, which has high adhesion, impact resistance, corrosion resistance, and weather resistance. the inner wall is made of thermoplastic powder coating with high adhesion, corrosion resistance, and food-grade hygiene. the inner and outer plastic-coated composite steel pipes for water supply are manufactured by sandblasting chemical double pretreatment, preheating, inner and outer plastic coating, curing, post-treatment, and other processes. it is a cost-effective product upgraded from traditional steel-plastic pipes and galvanized pipes. the products have passed the professional certification of the national solid fire extinguishing system and the quality inspection center of fire-resistant components.
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by coating steel pipes or galvanized pipes with plastic for anti-corrosion, the problems of corrosion and scaling in the process of embedding and transportation of ordinary steel pipes are solved. eliminate pipe blockage and spray blockage, improve the service life of the pipe, and the service life of the plastic-coated steel pipe can reach more than 50 years. the powder coating for plastic-coated steel pipes is added with a flame retardant and modified by epoxy resin powder. the coating has excellent temperature resistance and will not burn or soften after long-term use.
product features of plastic-coated steel pipes inside and outside:
1. hygienic, non-toxic, non-polluting, micro-organism-free, ensuring fluid quality
2. resistance to chemical corrosion, soil, and marine biological corrosion, cathodic stripping
3. the installation process is mature, convenient, and fast, similar to the connection of ordinary galvanized pipes
4. extremely flame retardant, non-combustible at 300°c
5. the pipe wall is smooth, which improves the conveying efficiency and has a long service life
technical parameters:
coating material: modified heavy-duty epoxy resin
coating thickness: 250um-550um
coating method: internal and external spraying
product specification: dn15-dn
ambient temperature: -30°c-80°c (peak value: 760°c);
conventional pressure: 0.1mpa-2.5mpa
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hot-dipped plastic steel pipes shall not be violently thrown and hit during transportation. nylon straps are used for hoisting during loading and unloading. hot-dipped plastic steel pipes should be stacked indoors or in a cool place. when stored in the open air, it should be covered with a canopy and kept away from heat sources and fire. do not stack them in direct sunlight or cold outdoors for a long time. do not mix with toxic and harmful substances.
precautions for hot-dipped plastic steel pipes: the pipes that convey hot water can convey cold water, and the pipes that convey cold water cannot convey hot water. the cross-section of plastic-coated composite pipe shall not be in contact with water, non-plastic lined fittings shall not be used instead of plastic-lined pipe fittings, plastic-coated fittings in malleable iron fittings shall not be used, injection joints shall be provided in raised-face rebar flanges, special transition pieces and the threaded connection of the valve port adopts a special transition piece, the connection with the water supply bolt adopts a special rubber sealing ring, and the groove connection adopts a special rubber sealing ring.
When it comes to applications that need highly durable piping systems, there can be nothing better than Composite pipes. These pipes can be used for a wide range of applications ranging from water supply systems for building supplying both hot and cold water, solar water heater systems, and in all places where there is a need for a durable and strong piping system.
These super strong and extra durable piping systems are a must have in applications where there is an involvement of some moisture and water. These composite pipes are thus an excellent utility for all applications where the environment is highly corrosive.
In this piece, we will walk you through everything that you need to know about a composite pipe system including how they are made, their features along with their applications. Let us begin by first discussing what a Composite Pipe is all about?
A Composite pipe is one of the greatest innovations that have been made recently in the piping systems. While the conventional pipes were first made out of metals and then when plastic was invented it turned to plastics. Both metal pipes and plastic pipes are still used in their own way. But both these piping systems had their own disadvantages as well. While the metal pipes would corrode often and easily, the plastic pipe systems may be influenced by temperature.
To overcome the disadvantages of metal and plastic PVC pipes, composite pipes a material that is a blend of highly durable materials was invented. And so to define ：
Composite pipe are pipes that are made from high density thermoplastic materials which may be blended with other materials.
Composite Pipes are pipes that are a made from strong materials such as PVC (Polyvinyl Chloride), HDPE (High Density Polyethylene), GRP (Glass Reinforced Plastics), FRP (Fiber Reinforced Plastics) etc. These pipes as such are thus made extremely strong to rule out and overcome the disadvantages of metal and plastic pipes.
Composite pipes as such are pipes that are made from a blend of reinforced high-density thermoplastics along with other materials added to increase their other properties that add to their durability and longevity.
These super strong high density composite pipes are made using either of the below two processes:
In this process the fiber strands of the composite pipe material is made to pass through a liquid bath full of resin and then the strands are wound under high tension onto a mandrel that keeps rotating. Once the winding of the material is complete, it is then heated in an oven to make sure any imperfections go away. This is one of the most common processes of methods to make composite pipes. This process can be used to make pipes out of any of the materials mentioned earlier and more.
This method is more about using a mold to make the hollow tubes or pipes. This method as such involves filling the hollow tubular mold with heated polymer material and then heating the mold or the tool to melt the material completely, this tool rotates at a high rpm and then are cooled and removed from the mold or casting.
Both these methods are used in industries for manufacturing of Composite Pipes of all heavy duty materials. And as such both these methods are used based on the availability of tools and methods adopted by the manufacturers.
Now that we know how these pipes are made, let us now see the various features and properties of the composite pipes.
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