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What should be paid attention to in the purchase and installation of PE drainage pipe?


Release time:

Aug 03,2021

In the application process of pipeline system, the service performance of PE drainage pipe is determined by the pouring temperature. The temperature of molten iron is too high, and the oxidation of molten iron is serious. Since magnesium and rare earth easily react with oxides, the content of magnesium and rare earth will decrease. At the same time, high temperature will also increase the combustion loss and evaporation of magnesium. Because the temperature of the molten iron is too low, the spheroidizing agent cannot be melted and absorbed by the molten iron, but floats to the surface of the molten iron to burn or be oxidized.

  PE drain pipeWhat should be paid attention to in the purchase and installation?

In the application process of pipeline system, the service performance of PE drainage pipe is determined by the pouring temperature. The temperature of molten iron is too high, and the oxidation of molten iron is serious. Since magnesium and rare earth easily react with oxides, the content of magnesium and rare earth will decrease. At the same time, high temperature will also increase the combustion loss and evaporation of magnesium. Because the temperature of the molten iron is too low, the spheroidizing agent cannot be melted and absorbed by the molten iron, but floats to the surface of the molten iron to burn or be oxidized.

PE drainage pipe has good performance and quality, good carrying capacity, reliable sealing performance, good anti-corrosion treatment and water quality assurance system, and can shoulder the important task of water supply. The drainage pipe can also successfully complete the water supply task under the complex terrain soil. The new cast iron pipe has a certain degree of frost resistance, as long as there are no special circumstances, the basic will not appear frost crack.

Small-diameter drainage pipes and water meters in residential quarters and Xincun buildings are located in open corridors. PE drainage pipe fittings are wrapped with thermal insulation materials to put water meters and other water supply facilities in winter clothes. When the temperature drops suddenly, the drainage pipes of indoor and outdoor water supply facilities need to be antifreeze. The drain contains graphite monomer, which means that the cast iron is a mixture of iron and graphite.

The pipeline industry has developed rapidly since its emergence. Both domestic and foreign markets are showing signs of rapid growth. The domestic pipe market has huge room for growth. Due to the broad market prospects of plastic drainage pipes, enterprises have entered one after another, and the low entry threshold has caused problems such as market irregularities. The pipeline takes the road of independent innovation and sustainable development.PE drain pipeDevelopment in China is inevitable.

During the construction and installation of PE drainage pipes, only correct installation can avoid pipe explosion.

1. groove section

When selecting the cross section, consider the following factors, such as: pipe diameter, soil type, groundwater conditions, construction season, buried depth, whether the pipe trench is supported, drainage method, earthwork transportation, and the above eight factors should be considered

2. basic section

During the excavation process, if the undisturbed soil at the bottom of the trench has not been contacted, the pipeline can be directly laid. Generally, the soil is mainly sand cushion with a thickness of 200m. Before laying the sand cushion, the pipeline shall be flat with a density of not less than 90%. For quicksand, mud layer and hard soil layer, etc. The method of soil replacement and piling shall be adopted to ensure the engineering quality.

3. connection between PE drain pipe and other pipes, fittings and valves

After flushing and disinfection and hydraulic pressure test, the construction section of the urban water distribution main pipeline shall be connected with pipes and valves made of other materials such as user pipes and built pipes, especially the main pipeline that has been updated and reformed, which has the problem of connection with other pipelines.

1. The connection between the water supply pipe, metal pipe and small diameter valve of the PE pipe below dn63 can be made of injection molding pipe with embedded metal thread.

2. The connection between PE water supply pipe higher than dn63 and other material pipes, expansion joints, valves, fire hydrants and other metal fittings adopts the same model and flange connection for transition. The transition flange of PE pipe is composed of flange head and steel-plastic flange sheet. When the PE pipe is connected with other materials, such as pipe fittings, hairpin materials and valves, the pressure rating of the transition fittings should not be lower than the nominal pressure of the pipeline.

 

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