pipes for street sewerage systems
Corrugated PVC pipes
Corrugated PVC pipes are designed for use in street sewage systems. They are made of non-softened polyvinyl-chloride, intended for collection and disposal of the rainfall and faecal wastewaters. The quality of the non-softened polyvinyl-chloride (PVC) used to produce the pipes and the connecting elements, must satisfy the requirements set out by the EN 13476, DIN 16961standard. It is strictly forbidden to use a softener, a filling or other material that does not possess controlled and attested composition.
When compared to PVC UK pipes designed for the same purpose, the double-wall corrugated pipes reinforced by outer ribs are lighter – sometimes up to 40%, lighter than PVC UK pipes, depending on the diameter. Owing to their smooth inner surface characterised by a very low friction coefficient, corrugated pipes possess very good hydraulic qualities. They are also resistant to abrasion, aggressive waste waters, chemical impact and major mechanical impacts, such as land shifting.
PVC is a high-quality material, resistant to corrosion and chemical decomposition such as may be caused by acids, alkalis, salt compounds and many other chemicals. Pipes and connectors made of PVC represent a permanent solution in the temperature conditions ranging from 0 ºC to +60 ºC. PVC installations are resistant to salt water, acids, bases, sulphates, alcohol and mechanic impact. They also provide very good electrical insulation, and have a service life of over 50 years. PVC installations cannot be used for waste waters with a high content of petrol, acetone and benzene. The pipes are joined together using a sleeve joint or other type of connector, with rubber rings ensuring full adhesion.
Corrugated PVC pipes are produced to withstand standard SN4 (4KN/m2) and SN8 (8KN/m2) pressures. For non-standard installations, they can be supplied in variants that withstand higher head pressures of up to SN 16. They are easy to install and have a very long service life, with minimum maintenance requirements.
The outer diameters are in the range from Ø 200 mm to Ø 500 mm, and the lengths are in the range of up to 6 m. Alternatively, these can be adjusted to suit the customer’s requirements.
PVC UK pipes are red-brown in colour ( RAL 8023) and bear the inscriptions with the following data: type of material, outer diameter, DIN 16961, manufacturer’s code and year of production.