August 12, 2017 18:08
Plastic, polymeric pipes, and included them in the details to them on the composition can be:
External communication sewage finds its continuation in the interior.Its purpose:
types of external sewage:
distinctive qualities of a gravity sewer system are:
The construction industry contributes to the rapid distinction pipes color.Red, orange - external sewerage system, gray - interior.
Properties discharge external sewage:
Appointment of internal sewerage system - to collect and divert wastewater to an external drain.
pipe and fitting design of internal water communication are made of polypropylene and polyvinyl chloride.Their color - gray.
PVC are resistant against chemical attack.Able to move the high temperature water (50-95 degrees).
Turba and PP fittings are resistant to a higher temperature (95 degrees).PP material is used for mounting non-pressure pumping stations.
PP pipes and fittings are different:
Practice shows excellent stability of plastic sewer systems to chemical exposure.Not surprisingly, their use in mass Sewer institutions (hospitals, laboratory organization).
Discharge pipes and fittings may comprise a part of the cast iron material.Their production is based on gray cast iron with graphite impregnation.Home installation - according to GOST 6942-98.Eliminate corrosive processes helps specific treatment coating of cast iron pipes and fittings, bitumen solution, and means that will prevent rust, surface damage and promote softening of the surface coating.
Pros iron raw material:
between a cast-iron pipes are held together by plastic tubes PVC and PP rubber adapters (adapters cm. To fig.).