material PVC pipe performance will also improve

material PVC pipe performance will also improve
To meet the requirements for safe and reliable operation of water supply networks, pipe has two directions of development:
A is a kind of new type pipe material, limit and phase-out is not meeting the requirements of the development of the old pipe. Development of good performance, good resistance to corrosion of new pipe material, according to the actual requirements, choose a suitable metallic or non-metallic pipes;
Is the second on the pipeline surface protective measures, internal and external corrosion lined coat, water quality in to ensure safety.
Cast iron pipes in pipe work, still occupy an important position, especially steel production in the coming decades will not drop (current world production of 7.8 billion tons). Cast iron pipe has been a significant increase in performance. ISO2531, tensile strength ≥ 420MPa for centrifugal ductile iron pipe, strength and low alloy steel, superior corrosion resistance steel pipe of a centrifugal ductile iron pipes. Water quality in resistance to corrosion and assurances, internal and external lining of cast iron pipe coating and corrosion-resistant materials, improved and perfected.
Plastic pipe will have greater development, material PVC pipe performance will also improve, avoiding the use of containing heavy metal stabilizers. Various new technologies on new plastic, are in constant use. But the stability of the plastic pipe and remains the fear of aging.
Advanced composite pipes in the 20th century has been a great development. Prestressed reinforced concrete pipe, PCCP pipe (copper cylinder concrete pipes) and resin-based composite (GRP sand pipe glass pipe) in the application of large diameter water transmission pipeline engineering steel-plastic composite pipe and aluminum-plastic composite pipe, in great demand for small users in the pipe market.

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