PPR System — Pipes Il tubo
Italian PPR Pipe Manufacturer — Cold & Hot Water, Made in Italy
WARMHAUS extrudes a full range of PPR pipes for cold and hot water supply — a complete PN series across sizes 20–160 mm, in random-copolymer PP-R, each length printed WARMHAUS MADE IN ITALY. Hot-melt weldable into the full WARMHAUS PPR system. Wholesale, project and OEM only — we do not sell single lengths to consumers.
Interim photo · CC BY
I. Sizes & Pressure Misure e pressione
One Diameter Range, from Ø20 Branches to Ø160 Project Mains
Distributors lose sales on the size they do not stock; project buyers lose the tender if the main is not available in the diameter the drawing calls out. WARMHAUS produces PPR pipe across 20–160 mm — one Italian brand end-to-end, no mixing brands at the reducer.
| Specification | Typical role / industry norm | WARMHAUS detail |
|---|---|---|
| Ø20 – Ø32 mm | Fixture branches, small-bore cold & hot runs | PN classes per size: Coming soon — on the spec sheet |
| Ø40 – Ø63 mm | Risers, floor distribution, apartment lines | PN classes per size: Coming soon — on the spec sheet |
| Ø75 – Ø110 mm | Building mains, commercial distribution | PN classes per size: Coming soon — on the spec sheet |
| Ø125 – Ø160 mm | Large project mains and trunk lines | PN classes per size: Coming soon — on the spec sheet |
| Pressure class | PPR is commonly rated PN10 to PN25 as an industry norm — cold supply typically at the lower classes, continuous hot water at the higher ones | Exact PN series per SKU: Coming soon — confirmed on request |
| Wall thickness (SDR) | Wall thickness follows the SDR series matched to each PN class, as an industry norm | Coming soon — confirmed on request |
| Service temperature | Continuous cold & hot water rating | Coming soon — confirmed on request |
Exact diameters supplied, and the PN classes available per diameter, are confirmed on the WARMHAUS technical data sheet. Every value ships printed on the pipe body.
II. Cold or Hot Acqua fredda e calda
PPR Pipes for Cold and Hot Water — Matched to Your PN Class
The same green (or white) PPR pipe is not the same pipe. Cold-water runs and hot-water risers demand different pressure classes — and buying the wrong wall thickness is how a project fails inspection.
Cold-Water PPR
Cold supply, distribution and sanitary cold lines — typically served by the lower PN classes of the series, as an industry norm. The exact WARMHAUS cold-water PN classes per diameter: Coming soon, confirmed on the technical data sheet.
Hot-Water PPR
Hot water supply, hot risers and heating returns — the higher PN classes, rated for continuous hot service, as an industry norm. WARMHAUS hot-water PN classes and continuous service temperature: Coming soon, confirmed on the technical data sheet.
Oxygen-Barrier PPR for Closed Heating Loops
In closed heating and recirculation loops, oxygen diffusing through a plain plastic wall can corrode boilers, pumps and steel parts — which is why heating specifications often call for an oxygen-barrier pipe (typically an EVOH layer, as an industry norm). Potable supply generally does not need it. Whether a given WARMHAUS PPR line includes an oxygen-barrier construction: Coming soon — tell us if your project is potable supply or a closed loop and we’ll confirm the correct pipe.
One Material, One Weld
Extruded from random-copolymer polypropylene (PP-R), the industry-standard resin for pressure hot and cold water pipe — same material as WARMHAUS PPR fittings, so pipe and fitting fuse into a single homogeneous joint. Exact PP-R grade, source and execution standard: Coming soon, confirmed on request. Backed by ISO 9001, ISO 14001, German SKZ and DVGW.
III. The Marking Stampato sul tubo
Every Length Printed WARMHAUS MADE IN ITALY
For an importer selling on the strength of Italian origin, the marking on the pipe is the proof — readable by your customer, a site inspector or a tender reviewer, straight off the pipe.
IV. FAQ Domande frequenti
PPR Pipes — Frequently Asked Questions
WARMHAUS is a direct PPR pipe manufacturer, Made in Italy in Bologna since 1970. We extrude our own cold- and hot-water PPR pipes, print WARMHAUS MADE IN ITALY on the pipe body, and hold ISO 9001, ISO 14001, German SKZ and DVGW — so you deal with the Italian source, not a middleman marking up a third-party factory.
WARMHAUS PPR pipes run across the diameter range 20 to 160 mm in a PN series for both cold and hot water. PPR is commonly rated PN10–PN25 as an industry norm; request the spec sheet for the full size × PN table so you stock the right classes for your market.Exact PN classes and wall thickness per WARMHAUS diameter: Coming soon — on the spec sheet.
Our PPR pipes are extruded from random-copolymer polypropylene (PP-R), the industry-standard resin for pressure hot and cold water pipe, selected for consistent long-term pressure performance batch after batch — and printed as a material class on the pipe body.Exact PP-R grade, source and execution standard: Coming soon — confirmed on request.
Yes. Every length is printed WARMHAUS MADE IN ITALY with size, PN class and standard reference — proof of origin that lets you sell at a premium and prove authenticity across the Gulf, North Africa, Southern Europe and Latin America. For private label, the pipe-body print can carry your own brand instead.Private-label program MOQ: Coming soon — confirmed on inquiry.
Closed heating loops often specify an oxygen-barrier pipe (typically an EVOH layer, as an industry norm) to protect boilers and steel parts from oxygen corrosion; potable cold and hot supply usually does not need it. Tell us your application and we’ll confirm the correct pipe.Oxygen-barrier availability per WARMHAUS PPR line: Coming soon — confirmed on the technical data sheet.
We are set up to supply Made-in-Italy PPR pipes to importers, distributors and projects across the Middle East and Gulf (Saudi Arabia, UAE, Qatar, Oman, Kuwait), North Africa (Egypt), Southern and Eastern Europe (Spain, Italy, Romania, Turkey) and Latin America — one English international line, with exclusive territory available per market and flexible, small-trial-friendly MOQs.
Start Here Parliamone
Request the WARMHAUS PPR Pipe Spec Sheet & Price List
Tell us your role — distributor, project or OEM — your target market, and the PN class or sizes you need (20–160 mm). We’ll reply with the full spec sheet and pricing, from an Italian PPR manufacturer since 1970. Response time: Coming soon.