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RPM Diffusion — Professional Marine Valves

PPR pipe

Aquatherm PPR (polypropylene random copolymer, PP-R) pipe forms rigid systems joined by socket fusion: pipe and fitting fuse into one material, with no adhesive or seal. Two ranges are available, from Ø20 to Ø125.

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  • green pipe: single-layer fusiolen PP-R pipe, in SDR 11 and SDR 7.4 (and SDR 9 in Ø40). Its data sheet cites DIN 8077/8078, DIN EN ISO 15874, ASTM F2389 and CSA B137.11.
  • blue pipe: multilayer PP-R pipe, stabilised by fibres in the middle layer, in SDR 7.4 and 11 in this range; its data sheet cites SKZ HR 3.28, ASTM F2389, CSA B137.11 and ISO 21003.

SDR is the ratio of outside diameter to wall thickness: the lower it is, the thicker the wall. According to the data sheets, a Ø20 pipe has a 1.9 mm wall in SDR 11 and a 2.8 mm wall in SDR 7.4. Pipes are designated by outside diameter and wall thickness; the data sheet also gives the bore, the water capacity and the bar length, 4 m up to Ø125.

For jointing, see the Aquatherm PPR fittings and PPR tools (welding machines, heating sockets, pipe cutters, deburrers). ISO 15874 covers polypropylene piping systems for hot and cold water.

Brand: Aquatherm.

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