pipes for household sewerage systems
PVC pipes for household sewerage systems
PVC pipes for household sewerage systems are made of non-softened polyvinyl-chloride, and are designed to collect all kinds of sewage waste waters. The quality of the non-softened polyvinyl-chloride (PVC) used to produce the pipes and the connecting elements, must satisfy the requirements defined by the SRPS G.C6.502 standard. It is strictly forbidden to use a softener, a filling or other material that does not possess controlled and attested composition.
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.
PVC KK pipes and connecting elements are used in all types of pipelines that are installed below the ground surface, as well as on free and even surfaces above ground level, to be used for collection and removal of waste waters and rainfall, either together or separately. These pipes can be used in industrial wastewater sewage systems, provided that these do not contain elements that can disturb PVC and provided that these are either free-fall (gravity) systems or low-pressure systems.
The pipes that are intended for household sewage systems are made with an expanded ‘collar’ on one end, or without it (series S-25).
PVC KK pipes fitted with a ‘collar’
de – nominal – listed diameter (outer diameter)
s – wall thickness
Pipes have outer diameters in the range between Ø 50 mm and Ø 160 mm, and are supplied in lengths ranging from 250 mm to 5000 mm.
PVC KK pipes are grey ( RAL 7011) and the inscriptions that they are marked with contain the following data: type of material, outer diameter, SRPS G.C6.509, manufacturer’s code and year of production.
The useful length of the pipe is its length without the collar’s depth.
