PPR Applications 1. Hot and cold potable water piping networks in residential and commercial buildings. 2. Heating systems. 3. Chilled water networks in air conditioning systems, as an effective light weight and corrosion free subtitute for steel pipes. 4. Transport of wide range of chemicals in the industry. 5. Piping networks for rainwater utilization systems and swimming pools facilities. 6. Compressed air installations and other industrial applications.