In our daily lives, the most common stainless steel water pipes are bare pipes in their original color. Some have smooth and reflective surfaces, while others are unpolished, with a matte surface and a darker color. In some waterway decoration drawings, we also see our own plastic coated stainless steel pipe, coated with red or blue plastic on the stainless steel pipe wall.
The oxidation resistance and corrosion resistance of stainless steel water pipes are excellent. Why do manufacturers introduce plastic coated stainless steel pipes? What is the effect of plastic coating on stainless steel water pipes? Today I want to give everyone an answer.
In the installation of stainless steel pipes, if we need to bury them in underground spaces or walls (secretly installing water and electricity), it is recommended to use plastic coated stainless steel pipes. Generally, red plastic pipes are considered hot water pipes, and blue plastic pipes are cold water pipes. This way, everyone can easily distinguish between hot water pipes and cold water pipes, and provide accurate analysis, judgment, and management maintenance for some problems in a timely manner.
Nowadays, in the design of pipeline management systems for home decoration drinking water, we can generally adopt the form of concealed burial, groove on the wall, and lay dedicated water pipes. In the design of stainless steel red blue coated plastic coated water pipes, the main content includes a blue cold water pipe and a red hot water pipe; The blue and red plastic coatings developed in this project are wear-resistant and corrosion-resistant polyethylene production plastics for the outer plastic coating of stainless steel bare pipes, with different insulation, corrosion resistance, and wear resistance characteristics.
Because thin-walled stainless steel pipes and fittings must not come into direct contact with cement mortar and concrete, covering the surface with a plastic coating can protect the stainless steel pipe from friction and scratches on the surface of the chromium oxide film. Underground or walls are enclosed spaces with certain humidity and weak electricity in the environment, which can corrode the stainless steel pipe (possibly) for a long time. Plastic coating can effectively isolate and enhance the corrosion resistance of the stainless steel pipe.
Why does stainless steel water pipe need to be covered with a layer of polyethylene? If other materials can be coated, let's first take a look at the advantages of coating polyethylene.
Advantages of plastic coated stainless steel pipes
1. The water pipe adopts a polyethylene protective layer, which has good insulation performance and low heat loss;
2. The polyethylene layer has excellent insulation properties, which can avoid electrical corrosion caused by different metal contact societies;
After coating polyethylene on the water supply pipeline, effective measures can be taken to prevent the occurrence of moisture, cold, and condensation. At the same time, it can eliminate the noise of liquid flow inside the pipe;
4. The PE layer has good corrosion resistance, acid and alkali resistance, and the corrosion resistance of 304 stainless steel water pipes is good.
Finally, the study found that the hollow design of red plastic coated stainless steel water pipes has certain insulation performance, which can reduce heat loss, energy consumption, reduce liquid flow noise inside the pipes, prevent building wall cancer, cement aging, tile protrusion, etc.
