In the conditions of a suburban or suburban area, quite often it is necessary to solve problems associated with the arrangement of a system for the removal of excess rain and ground water. HDPE drainage pipes act as the most suitable products for the installation of such a system.
Application
HDPE pipe is used to equip the drainage system in forestry and agricultural facilities, in sports complexes, in road construction, in landscaping and for protecting basements, as well as the foundations of buildings for various purposes.
Main characteristics
HDPE drainage pipes belong to the SN4 class of rigidity. They are deepened by 4 m. One bay can weigh up to 30 kg, the minimum weight is 24 kg. The length of the pipe is 50 m. The height and diameter of the bay are equivalent to 0.7 and 1.5 m, respectively. The drainage system is laid in areas whose soils are characterized by a high level of groundwater.
Such pipes dry the topsoil. Asbestos-cement products are increasingly being replaced recently by plastic, because HDPE is a material that is more durable, reliable and economical. HDPE drainage pipes do not decay, are not exposed to chemicals and allow them to be laid even in cold weather without affecting the drainage system.
Characteristics in terms of type of perforation
To date, the described pipes are for sale with varying degrees of perforation. If it is located on the entire surface, then you will see the number 360 in the marking. Such products are used in those areas where a rather impressive amount of groundwater is used.
Choosing pipes with a perforation of 240 °, you get a product with holes on the surface of which are located in a specific 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
HDPE drainage pipes are made of PE80 SDR 17 polyethylene. It conforms to GOST 18599-2001. According to the SDR standard, the described products 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 relevant equipment, you can find several varieties of the described pipes, they can have partial or complete perforation. Pipes are insulated with geotextile or other filtering material, but may be deprived of it. If we are talking about two-layer products, then they are performed by the method of coextrusion.
Corrugations are located on the upper layer and are endowed with stiffeners. This gives them high strength. The pipes inside are smooth, this ensures gliding. HDPE drainage pipes can have a different degree of perforation, which is selected taking into account the operation of the pipeline.
If the soil needs to be drained and its humidity controlled, products with a large perforation area are used. Here it is necessary to take into account the fact that the holes will be located from 240 to 360 ° on the surface. If the drainage system is equipped to remove moisture from the soil surface, the holes can be located in a sector with an angle of up to 180 ° C.
When the soil on the site is clay, then pre-insulated pipes are laid in it . At the same time, geotextile eliminates water flooding of the pipeline and makes its work more efficient. HDPE corrugated drainage pipes can have a small perforated section of 180 °. Such products are used in areas where melt and groundwater accumulate in large quantities.
For surface drainage, 120 ° perforated pipes should be used. This modification is specifically designed for such systems. Pipes made of low-pressure polyethylene are able to divert atmospheric water from the site and exclude the rise of groundwater to the base of the house. Molds will not form in buildings on the premises, and basement floors will not be flooded.
Characteristics of pipes with geotextiles
HDPE drainage pipe with geotextiles is represented by single-layer and two-layer products. The diameter may be equal to a limit of 50 to 200 mm. The intermediate values are:
- 90 mm;
- 110 mm;
- 125 mm;
- 160 mm.
It may be based on different brands of imported and domestic polyethylene. Among the physical and mechanical properties, shock resistance, which is 10, as well as ring stiffness, it is 4 kPa, should be highlighted.
Mention should also be made of a density that is equivalent to 0.93 g / cm 3 . When choosing products, consumers also pay attention to the yield strength under tension; it reaches 16.7 MPa.
The weight and width of the bay will depend on the outer diameter of the pipe and the outer diameter of the bay, as well as the number of meters of the pipe. For example, if the outer diameter of the product is 90 mm, and the outer diameter of the bay is 1.14 m, then the bay will weigh 20 kg with a width of 0.5 m. In this case, 50 m of pipes are supplied in one bay.
Purpose of the pipe in the filter
HDPE drainage pipe 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 arrangement of horizontal closed drainage in the conditions of irrigated plots and drained lands. Drainage found its distribution in road construction, as well as the need to protect basements and foundations of buildings from water.
The pipe is used in agriculture and landscaping. Geotextiles are necessary to prevent clogging of the cavities and openings of the pipe with soil particles and sand. This prevents siltation and clogging of products. Perforation contributes to the flow of water into the pipe. Drainage is laid at a depth of 2 m. You can recognize it by the abbreviation DHT, which stands for drainage corrugated pipe.
Finally
HDPE drainage pipe at 160 mm, the cost of which is 5800 rubles. for one roll of 50 m, it 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 laying in the ground and not be afraid that clogging will occur.