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my country's plastic pipes develop rapidly with policy support
my country's plastic pipes develop rapidly with policy support
Plastic pipes have the advantages of saving energy and protecting the natural ecological environment, and are in line with the direction of national industrial development. According to the "Tenth Five-Year Plan for the National Chemical Building Materials Industry and the Outline of the 2010 Development Plan", the promotion and application of plastic pipes will be vigorously developed, and the key varieties are mainly PVC and PE pipes.
In 2010, in new construction, reconstruction and expansion projects across the country, 80% of construction drainage pipes were made of plastic pipes, 70% of construction rainwater drainage pipes were made of plastic pipes, and plastic pipes used for urban drainage pipes reached 30%. Building water supply, hot water supply and heating 80% of pipes are made of plastic pipes, 70% of urban water supply pipes (below DN400mm) are made of plastic pipes, 70% of rural water supply pipes are made of plastic pipes, and 60% of urban gas plastic pipes (medium and low pressure pipes) are used, and construction wires are threaded and sheathed. 90% of the pipes are made of plastic pipes.
As the country pays increasing attention to environmental protection, the country will invest heavily in the construction of sewage treatment plants and drainage pipe networks in many cities in the next few years.
In 2010, it is planned that the amount of reclaimed water used for sewage recycling should reach 30% of the total sewage, and special pipelines need to be laid. All these have brought broad prospects for the development of my country's plastic pipe industry.
But at the same time, we must also note that there are still some unfavorable factors restricting the development of my country’s plastic pipe industry, such as low product prices due to vicious market competition, high dependence on raw material imports, and slow promotion and application of new products and new technologies. It is the current global economic crisis that has had a great impact on the development of the plastic pipe industry. In order to speed up the development of my country's plastic pipe industry, Jiuzheng Building Materials Network suggests: give full play to the functions of industry associations and actively provide services and support for enterprises. Speed up the development of raw materials in my country and standardize industry self-discipline. It is necessary to establish a strict quality restraint mechanism to make enterprises with high quality and high-tech products become the mainstream of the market. It is also necessary for construction enterprises to master more advanced technologies to enhance the overall use effect of products.
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2020-12-07
Characteristics and connection method of PE gas pipe
1. Features of PE gas pipe
1. Good hygiene performance: no heavy metal salt stabilizer is added during PE pipe processing, the material is non-toxic, no scaling layer, no bacteria breeding, and it solves the secondary pollution of urban drinking water.
2. Corrosion resistance: Except for a few strong oxidants, it can withstand the erosion of a variety of chemical media; no electrochemical corrosion.
3. Long service life: PE pipes can be used safely for more than 50 years under rated temperature and pressure conditions.
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2020-12-07
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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