In the conditions of a suburban or suburban area, it is quite often necessary to solve problems related to the arrangement of a system for draining excess rain and groundwater. HDPE drainage pipes are the most suitable products for the installation of such a system.
Application
HDPE-pipe is used to equip the drainage system at forestry and agricultural facilities, in the territories of sports complexes, in road construction, in the arrangement of landscape areas and to protect basements, as well as the foundations of buildings for various purposes.
Key Features
Drainage pipes made of HDPE are SN4 hardness class. They are deepened by 4 m. One bay can weigh up to 30 kg, the minimum weight value is 24 kg. The length of the pipe is 50 m. The height and diameter of the coil are equivalent to 0.7 and 1.5 m, respectively. The drainage system is laid in areas where soils are characterized by a high level of groundwater.
Such pipes dry out the topsoil. Asbestos-cement products are increasingly being replaced by plastic ones, because HDPE is a material that is more durable, reliable and economical. HDPE drainage pipes do not rot, are not attacked by chemicals and can be laid even in cold weather without damage to the drainage system.
Characteristics in terms of perforation type
Today, the described pipes are offered for sale with varying degrees of perforation. If it is located over the entire surface, then you will see the number 360 in the marking. Such products are used in those areas where there is a rather impressive amount of groundwater.
Choosing pipes with 240° perforation, you get a product, the holes on the surface of which are located in a certain segment of the circle. One part of the pipe will be perforated, while the other will remain intact. If you equip the drainage system with the help of such pipes, you will be able to direct the flow of water from the slope.
Additional specifications
Drainage HDPE pipes are made of polyethylene grade PE80 SDR 17. It complies with GOST 18599-2001. According to the SDR standard, the products described have certain dimensions, wall thickness and diameter. For the arrangement of drainage systems, the minimum diameter is 50 mm, while the maximum value is 200 mm.
Today, on the market for the corresponding equipment, you can find several varieties of the pipes described, they may havepartial or complete perforation. Pipes are insulated with geotextile or other filter material, but may be devoid of it. If we are talking about two-layer products, then they are made using the co-extrusion method.
Corrugations are located on the top layer and are endowed with stiffening ribs. This gives them high strength. Inside the pipes are smooth, this guarantees slipping. HDPE drainage pipes can have different degrees of perforation, which is selected taking into account the operation of the pipeline.
If the soil needs to be drained and its moisture controlled, products with a large perforation area are used. Here you should take into account the fact that the holes will be located from 240 to 360 ° along the surface. If the drainage system is equipped to remove moisture from the soil surface, then the holes can be located in a sector with an angle of up to 180 °C.
When the soil at the site is clayey, then pre-insulated pipes are laid in it. Geotextile thus excludes flooding of the pipeline and makes its work more efficient. Corrugated HDPE drainage pipes may have a small 180° perforated section. Such products are used in areas where melt and groundwater accumulate in large quantities.
For surface drainage, pipes with 120° perforations should be used. This modification is specially designed for such systems. Pipes made of low pressure polyethylene are able to drain atmospheric water from the site and exclude the rise of groundwater to the base of the house. Mold will not form in the buildings on the territory, and the basement floors will notflood.
Characteristics of geotextile pipes
HDPE drainage pipe with geotextile is presented in single-layer and double-layer products. The diameter can be equal to the limit from 50 to 200 mm. The intermediate values are:
- 90mm;
- 110mm;
- 125mm;
- 160 mm.
The basis may be different brands of imported and domestic polyethylene. Among the physical and mechanical properties, it is worth highlighting the impact resistance, which is 10, as well as the ring stiffness, which is 4 kPa.
We should also mention the density, which is equivalent to 0.93 g/cm3. When choosing products, consumers also pay attention to the tensile yield strength, it reaches 16.7 MPa.
The weight and width of the coil will depend on the outer diameter of the pipe and the outer diameter of the coil, as well as the number of meters of pipe. For example, if the outer diameter of the product is 90 mm, and the outer diameter of the coil is 1.14 m, then the coil will weigh 20 kg with a width of 0.5 m. 50 m of pipe is supplied in one coil.
Assignment of the pipe in the filter
Drainage pipe HDPE with perforation in the filter is a product that is supplied in a bay of 50 m. The inner diameter is 110 mm. The pipe is intended for the arrangement of horizontal closed drainage in the conditions of irrigated plots and drained lands. Drainage has found its distribution in road construction, as well as the need to protect basements and foundations of buildings fromwater.
The pipe is used in agriculture and landscaping. Geotextiles are necessary to prevent clogging of cavities and pipe holes with soil particles and sand. This helps to prevent silting and clogging of products. Perforation promotes the flow of water into the pipe. The drainage is laid to a depth of 2 m. You can recognize it by the abbreviation DGT, which stands for drainage corrugated pipe.
In closing
Drainage pipe HDPE 160 mm, the cost of which is 5800 rubles. for one roll of 50 m, acts as an indispensable element of the system that removes excess water from the site. The mentioned product is supplied in a filter, which allows you to lay in the ground and not be afraid that clogging will occur.
