PP-R /Al Composite Pipe, size ranging from 20 to 110mm, for cold or hot water supply, approved by ISO, WRAS, ... BS6920Certification: ISO9001, ISO14001, OHSAS18001 Applications: cold or hot water supply, heating system including flooring heating, wall heating and ... expansion coefficient: it does not curve when transporting hot water for long time Dimension S 4, PN1.6MpaNominal Outer DiameterMinimum ...