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Application field of large diameter plastic coated steel pipe


large-diameter plastic-coated steel pipes are mainly made of spiral steel pipes or seamless steel pipes. it is not recommended to use straight seam welded pipes. longitudinal welded pipes are usually not as good in bearing pressure as spiral steel pipes, and the cost is higher than spiral steel pipes. therefore, for large-diameter plastic-coated steel pipes, it is recommended to use spiral steel pipes as the base material, and seamless steel pipes are used when the needs are high.

large-diameter plastic-coated steel pipes are mainly used in hvac, municipal, industrial, sewage, and other fields. in the fields of hvac and municipal administration, large-diameter plastic-coated steel pipes solve the problems of easy rust, scaling, and pollution in ordinary steel pipes. moreover, the service life of large-diameter plastic-coated steel pipes is 5-10 times that of normal steel pipes, which greatly reduces the cost of pre-installation, pre-buried, later maintenance costs, and reinstallation and replacement costs after the service life is over.

in the fields of industry, sewage, and other fields, the substances discharged and transported usually have a certain ph. under the effect of long-term oxidation, the corrosion rate of steel pipes is usually dozens of times faster than the normal rate. the cost of large-diameter steel pipes is very high, and the rapid corrosion causes the cost to soar. can not achieve the expected effect, because of small losses. the use of large-diameter plastic-coated steel pipes does not reduce the pressure of the pipeline itself and reduces the corrosion of the pipeline to ph and oxidation in the air for a long time to almost zero.

therefore, the service life of the pipeline has been increased from several years to several decades. the useful life has doubled tenfold, but the cost is about the same.

large-diameter plastic-coated steel pipes have won the favor of users due to their excellent performance, high-cost performance, energy saving, environmental protection, and cleaning safety in hvac, municipal, industrial, and sewage fields.

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