This is a general information about PPR pipes.
Polypropylene pipes - represent the hollow cylindrical products made of polymeric material, having a length substantially exceeding the diameter.
Range of application of polymeric pipes is extremely broad. Polymeric pipes are used for construction and repair of pipelines, transporting water for economic, drinking, hot and cold water supply systems, and transporting other liquids and gases to which the polymer which they are made of is chemical resistant. Polymeric pipes are also used for supply / transportation of flammable gases, heating systems, sanitary and sewerage networks. In recent times, plastic pipes are increasingly being used for hydraulic transport. Polymeric tubes can be used as guard channels for electrical, communication and fiber optic cables, etc.
Polymeric is a joint name. Generally, polymeric pipes fall into thermoplastic and thermoset.
Polymeric pipes can be manufactured from various thermoplastic materials and their compositions, such as polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), polyamide (PA), polybutylene (PB) and other.
Polypropylene (density 0.91 g/cm3, which is generally the lowest value for all plastics), is more hard (abrasion-proof), more resistant (begins to soften at 140° C, melting point 175° C), and almost is not corrosion cracking.
Polypropylene has a higher melting point and, correspondingly, a higher decomposition temperature. Pure isotactic polypropylene melts at 176° C. Maximum operating temperature is 120-140º C. All polypropylene products withstand boiling and can be subjected to steam sterilization, without any change in their shape and mechanical properties.
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