Broad prospects for the development of large-diameter plastic pipes in China

According to the research company of Friedonia Group in Cleveland, Ohio, the US demand for large-diameter pipes made of all kinds of materials will grow at an annual rate of 9% by 2012. The annual demand will reach 87.7 million meters, with a total value of 87.8 billion yuan. According to the Friedonia Group, plastics are expected to play an important role in China's growing large-diameter pipe market. The research company headquartered in Cleveland, Ohio, USA, expects that China's demand for large-diameter pipes made of all types of materials will grow at an annual rate of 9%. By 2012, the demand will reach 87.7 million meters, with a total value of 87.8 billion. Yuan Renminbi. From now to 2012, sales of plastic large-diameter pipes are expected to grow at an annual rate of 11%, faster than any other materials. By 2012, concrete will still be the most commonly used material. The Friedonia Group expects that the demand for large diameter pipes in applications such as sewers, drainage pipes, rainwater pipes and natural gas transportation will grow faster than the industry average. The forecast report released by the group said: Driven by the vigorous housing construction and the active improvement of rural living conditions, this type of pipeline will develop the fastest in the sewer. Drainage pipes will still occupy the largest share in this market, and will account for nearly one-third of the total demand for large diameter pipes by 2012.

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Belden hdpe gas pipeline

PE gas pipe hdpe gas pipe PE gas pipe adopts gas polyethylene pipe with many excellent properties and is used in the field of gas transportation. The corrosion of steel pipes and cast iron pipes and the leakage of joints will be completely solved, thus ensuring the safe operation of the gas pipeline network system. The PE material selected for the PE gas pipe is an inert material, which can withstand the erosion of a variety of chemical media.
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2018-03-22

Ways to reduce the noise of PVC drainage pipes

While adding stabilizers to improve the chemical stability and strength of pvc pipes, the sound insulation performance of the plastic itself has been greatly weakened. Therefore, in the current situation of reliable mechanical performance of pvc drainage pipes, how to solve the problem of sound insulation and noise reduction has become a top priority. The author believes that we can start with the noise source and adopt the following improvement measures to improve its sound insulation performance: ①It is made into double-wall hollow sound-proof PVC drainage pipe The special equipment for PVC pipe extrusion is modified, an intermediate mold is added between the inner and outer jacket, and the outer mold is modified to increase the intermediate distance to form a hollow cavity between the two walls, so that the plasticity of PVC will not be changed. But it can increase the damping of the pipe along the flow direction, thereby increasing Strong sound insulation effect. Using single-wall double-material PVC pipe On the basis of the original single-wall PVC pipe, a secondary formula is carried out, that is, the porous sound-absorbing material formed by plastic foaming technology is used to increase the wall thickness to achieve the purpose of increasing the damping along the outer wall direction, so as to obtain a good sound insulation effect. A set of equipment needs to be added, thus increasing the manufacturing cost. Muffled PVC drainage pipe The PVC pipe is made into a muffled drainage pipe with spiral fins attached to the inner wall. At this time, its outer wall is still a PVC hard plastic pipe (to ensure the required strength of the drainage pipe), but a certain width of flexible and strong soft is attached to the inner wall Plastic spiral belt, which unloads part of the impact pressure of the water flow onto the spiral belt, thereby buffering the pipe wall.
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2018-03-22

What is the difference between PVC water supply pipe and PVC drainage pipe

1. Different purposes: one for water supply and one for drainage. PVC water supply pipes are mainly used for: a. Indoor water supply and reclaimed water systems for civil and industrial buildings; b. Buried water supply systems for residential quarters and factories; c. Urban water supply pipeline systems; d. Water treatment plant water treatment pipeline systems; e. Marine aquaculture; f. Garden irrigation, well sinking and other industrial pipes. PVC drainage pipes are mainly used for building drainage and domestic sewage drainage. 2. Different specifications: PVC water supply pipes have more specifications and models, and PVC drainage pipes have relatively fewer specifications and models, because the drainage system itself does not require too many specifications. Even with the same model (outer diameter), the wall thickness of the water supply pipe and the drain pipe are often different, because the water supply pipe requires pressure, and the drain pipe usually does not need to consider the pressure. 3. The price is different: This will not be explained in detail, and the specific price can be consulted by each manufacturer.
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