PP-R ( POLY PROPYLENE - RANDOM) Home / Pipe Technology / PP-R
PP-R Introduction
PPR... a versatile and comprehensive system for water ans other fliud delivery, is used in applications of pressurized warm or cold water and industrial applications.
PP-R An Ideal Solution
PPR pipes and fittings are designed to withstand constant tempratures up to 70°C. The services life expectancy depends on the installed system pressure and pressure changes. Even though the service life expactancy of the pipes is more than 50 years, a permanent temperature rise from 70°C to 90°C will accordingly reduce the operational life of the pipe. However, a tempreture rise up to 100°C in short timeframes is usually unproblamatic.
Installation technical precautions
  • When tempreture drops under 0°C in winter, precaution must taken tom prevent possible cracking of pipes if th epipes are hit by externalforce.
  • The pipe shall be away from heat when stored for long time, direct sunshine shall be avoided during product transportation or storage.
  • PP-R Pipe has big expansion co-efficient, technical measures must be taken to prevent the thermal deformation of the pipes during the exposed or covered pipe layout.
  • One suppport or hanger (pipe buckle seat) must be installed every 400mm in exposed layout or non-linear covered layout.
  • During inbstallation, relevant design & installation codes must be followed, the construction workers must be trained and carry their certification badges at work.
  • Application
  • PPR water pipe network for hot and cold water installation for all type of buildings i.e. residential buildings, hospitals, hotels, schools, ships, etc.
  • Chilled water network in the Air conditioning systems, as it is an effective light weight and corrosion free substitute
  • Pipe network for rain water utilization systems.
  • Pipe network for compressed air plants and solar plants.
  • Pipe network for swimming pools facilities
  • Pipe network in agriculture and hor=ticulture sectors and in irrigation systems
  • Pipe network in factories, i.e. for transport of aggressive fluides and liquid foods.
  • Metric Series sizes 20mm to 200mm suitable to use at tempratures up to and including 95°C.
  • Pressure rating PN-10 to PN-20
  • Generally resistant to most acids, bases, salts, aliphatic solutions, oxidants and halogens.
  • Fusing Tools
    The pipes and fittings in type three PP-RC piping systems are connected through thermal fuse plugging. the thermal fusing tools are applied to melt the inner and outer surfaces of the fittings and pipes simulatneously and plug connect them under specified temperature and conditions. the two parts are integrated uniformly and firmly when cooled. the connection provides good sealing, high reliability and avoids any leakage. see the table for fusing connection technical requirements.