Product · PP-R System
PP-R Pipe & Fittings — A German-Engineered Fusion System for Hot & Cold Water and Heating
Hitze PP-R (polypropylene random copolymer) pipe and fittings are built as one homogeneous, heat-fused system — no rubber seals, no O-rings, nothing in the joint to age or leak.
Manufactured to German engineering standards (DIN 8077/8078, EN ISO 15874) and SKZ-tested, the range spans three pipe technologies — self-cleaning ceramic-core, fiber-glass reinforced (PPR-FB-PPR), and PPR-AL-PPR aluminium composite — across OD 20–110 mm (DN15–DN90).
Trade / bulk supply only — Hitze does not sell single lengths at retail.
SKZ · DIN 8077/78 · EN ISO 15874
The Range
See the Full PP-R System — Pipe, Valves, Manifolds & Fittings
Three engineered pipe types, a full heat-fusion fitting range, PP-R valves and distribution manifolds — one German-engineered, SKZ-tested source. (Some product photography is being finalized; captioned frames show the exact shots being staged.)
The Fusion System
Homogeneous Welded Joints — No Seals to Fail
PP-R is joined by heat fusion, not by seals. That single difference is why it is the lowest-risk connection you can specify behind a wall or under a slab.
PP-R is joined by heat fusion (socket welding): the pipe and fitting are heated and pressed together so the two polymer surfaces melt into a single, continuous mass. The result is a joint that is homogeneous with the pipe wall itself — chemically and mechanically one piece. There is no rubber seal, no gasket, and no compression ring to relax, harden, or leak over a 50-year service life. For potable and heating systems where a wall or slab may be closed over the pipe, a fused PP-R joint is the lowest-risk connection you can specify.
One Homogeneous Joint
Pipe and fitting melt into a single continuous polymer mass — no interface to age, no dissimilar materials to corrode.
No Seals to Fail
No O-rings, gaskets or compression rings in the joint — nothing to relax, harden or leak over a long service life.
Three Types
Three PP-R Pipe Types — Ceramic-Core, Fiber-Glass & Aluminium Composite
Hitze does not sell one generic PP-R pipe. It offers three engineered types, all for hot & cold water, all made to DIN 8077/8078 and EN ISO 15874, and all SKZ-tested.
The self-cleaning ceramic-core pipe (green with a red stripe) uses a smooth ceramic core to resist scaling and is rated to 10 bar (class 1) / 8 bar (class 2). The fiber-glass reinforced pipe (PPR-FB-PPR) adds a glass-fiber middle layer that cuts thermal expansion for hot-water lines, also 10 bar / 8 bar. The PPR-AL-PPR aluminium composite pipe adds a middle aluminium layer for an oxygen barrier and the lowest expansion, rated to 6 bar (class 1) / 4 bar (class 2). Choose the technology per line; source them all from one certified system.
| PP-R type | Construction | Color | Class 1 | Class 2 | Key benefit |
|---|---|---|---|---|---|
| Self-cleaning ceramic-core | PP-R + ceramic inner core | Green, red stripe | 10 bar | 8 bar | Scale-resistant, self-cleaning bore |
| Fiber-glass reinforced (PPR-FB-PPR) | PP-R / fiber-glass / PP-R | Green | 10 bar | 8 bar | Low thermal expansion for hot lines |
| PPR-AL-PPR aluminium composite | PP-R / aluminium / PP-R | Green | 6 bar | 4 bar | Oxygen barrier + lowest expansion |
All three types: hot & cold water · DIN 8077/8078 · EN ISO 15874 · SKZ-tested.
Real Dimension Range — OD 20–110 mm (DN15–DN90)
Real, full-catalog dimensions across every size — wall 3.4–18.3 mm, inner diameter 13.2–73.4 mm — so you can consolidate SKUs under one brand and one certification set.
| OD (mm) | Wall (mm) | Inner dia (mm) | DN |
|---|---|---|---|
| 20 | 3.4 | 13.2 | DN15 |
| 25 | 4.2 | 16.6 | DN20 |
| 32 | 5.4 | 21.2 | DN25 |
| 40 | 6.7 | 26.6 | DN32 |
| 50 | 8.3 | 33.4 | DN40 |
| 63 | 10.5 | 42 | DN50 |
| 75 | 12.5 | 50 | DN63 |
| 90 | 15 | 60 | DN75 |
| 110 | 18.3 | 73.4 | DN90 |
Full per-type pressure/temperature data and the complete fitting list are in the PPR Spec Pack below.
Download the PPR Spec Pack
The three PP-R types with 10/8 and 6/4 bar ratings, the full OD 20–110 mm dimension table (wall 3.4–18.3 mm, inner dia 13.2–73.4 mm, DN15–DN90), the fitting list, and the SKZ / DIN 8077-8078 / EN ISO 15874 certification summary. Email required.
Hot Lines · Low Expansion
Low-Expansion Pipe for Hot Lines — Fiber-Glass Reinforced & PPR-AL-PPR
Plain PP-R expands noticeably when hot — a real problem on long hot-water runs. Hitze answers with two low-expansion constructions.
The fiber-glass reinforced pipe (PPR-FB-PPR) adds a glass-fiber middle layer that cuts linear thermal expansion by roughly two-thirds versus standard PP-R, rated to 10 bar (class 1) / 8 bar (class 2). The PPR-AL-PPR aluminium composite pipe goes further, using a middle aluminium layer that acts as an oxygen barrier and holds expansion to the lowest of the three types, rated to 6 bar (class 1) / 4 bar (class 2). In the field, both mean less sag between brackets, fewer expansion loops, wider support spacing, and a straighter, more professional-looking hot riser. Both fuse with the same tools and fittings as standard PP-R, so installers gain low-expansion performance with no change in method.
Running closed-loop heating? Pair PPR-AL-PPR barrier pipe with our manifolds and brass transitions for a single-supplier package.
One Certified System
Fittings, Welder and Test Pump from One Source
A PP-R project is only as good as its fittings, so Hitze ships the whole system — pipe, the full heat-fusion fitting range, and the tools to install and prove the line.
The full heat-fusion range covers equal and reducing sockets, elbows and tees, 45° elbows, unions, ball / gate / stop valves, manifolds, a Y-strainer, caps and pipe clips — plus brass-insert threaded fittings from 1/2″ to 2″ for clean transitions to metal. Every fitting fuses homogeneously to the pipe: no rubber seal, no gasket, nothing in the joint to age. And because commissioning matters, Hitze also supplies the PP-R fusion welding machine and a PN40 pressure-test pump, so a wholesaler or contractor can source pipe, fittings and tools from a single certified brand.
| Group | Items |
|---|---|
| Sockets | Equal & reducing heat-fusion sockets |
| Elbows & tees | 90° elbows, 45° elbows, equal & reducing tees |
| Connections | Unions, caps, pipe clips, bridge bends |
| Valves | Ball valves, gate valves, stop valves, concealed stop valves |
| Distribution | Manifolds, Y-strainer |
| Metal transition | Brass-insert threaded fittings, 1/2″–2″ (male & female) |
| Tools | PP-R fusion welding machine, PN40 pressure-test pump |
Applications
One System for Potable Water and Heating
Because PP-R is chemically inert and its joints carry no seals, the same Hitze system serves the bulk of a building’s wet services.
The same Hitze system serves hot & cold potable (drinking) water, domestic hot-water recirculation, and closed-loop heating distribution. The self-cleaning ceramic-core type resists scaling; the aluminium-composite type adds an oxygen barrier for closed heating loops — no separate material, no dissimilar-metal corrosion, no ageing seals in fused joints. For merchants and importers, that means one certified product family covers the bulk of a building’s wet services — simpler stock, simpler quoting, one brand on the invoice.
Potable Hot & Cold
Chemically inert PP-R with no seals in fused joints — made for drinking-water contact.
Hot-Water Recirculation
Smooth-bore, scale-resistant ceramic-core pipe for continuous domestic hot-water loops.
Closed-Loop Heating
PPR-AL-PPR aluminium composite adds an oxygen barrier to protect boilers, pumps and manifolds.
Proof
SKZ-Tested and Made to DIN 8077/8078 & EN ISO 15874
Hitze PP-R is manufactured and tested to the standards importers and consultants ask for — with certificate numbers available on request.
The pipe is SKZ-tested — certified by the German Süddeutsches Kunststoff-Zentrum, a German plastics testing and certification institute — and made to the German DIN 8077 / DIN 8078 dimensional and quality standards and EN ISO 15874 (plastics piping systems for hot and cold water — PP). Hitze also holds NSF/ANSI 61 (potable-water safety), DVGW, WRAS, DIN 4726, and, as a German brand, CE marking with Declaration of Performance (DoP). The German brand itself is backed by trademark registration No. 30 2020 005 484 at the German Patent and Trademark Office (Deutsches Patent- und Markenamt, Munich). Specific certificate and listing numbers are available on request in the Cert Pack.
| Standard / mark | Scope | Status |
|---|---|---|
| SKZ certificate | German plastics testing & certification (Süddeutsches Kunststoff-Zentrum) | Certified ✓ (in catalog) |
| DIN 8077 / 8078 | PP-R pipe dimensions & quality | Certified ✓ (in catalog) |
| EN ISO 15874 | PP hot & cold water piping systems | Certified ✓ (in catalog) |
| NSF/ANSI 61 | Potable-water safety | Held ✓ (number on request) |
| DVGW | German gas & water standard | Held ✓ (number on request) |
| WRAS | UK water-fittings compliance | Held ✓ (number on request) |
| DIN 4726 | Barrier pipe for heating | Held ✓ (number on request) |
| CE + DoP | EU conformity / performance | Held ✓ (DoP on request) |
| German trademark | Deutsches Patent- und Markenamt, Munich | No. 30 2020 005 484 ✓ |
Certificate and listing numbers are supplied in the Hitze Certification Pack and, where applicable, are verifiable at source in the official registers — ask us, then check for yourself.
Wholesale & Private Label
Bulk Supply & Private Label — Build Your Own PP-R Brand
Hitze is a German brand — GERMANY Hitze INDUSTRY CO., LTD., founded 1974 and exporting to 118+ countries — built on an ODM model, which is exactly why it fits importers and private-label buyers.
Put your logo, your color, and your print on a full PP-R system — all three pipe types (self-cleaning ceramic-core, fiber-glass reinforced, and PPR-AL-PPR aluminium composite), the full heat-fusion fitting range, and even the fusion welding machine and PN40 test pump — all made to German standards and shipped as one program. MOQ is low and sample-friendly (MOQ figures: coming soon), so you can validate a range before committing volume. For wholesalers, that means a certified, consistent PP-R line to stock; for private-label brands and importers, a source that ships the whole system under your name.
For Wholesalers & Distributors
A certified, consistent PP-R line — three pipe types, the full fitting range and tools — to stock and reorder under one accountable German brand. Send your type mix and destination for a stocking quote.
Wholesale Supply →For Private-Label & Importers
Your brand, color and print on the whole PP-R system, made to German standards and shipped as one program — with low, sample-friendly MOQ so you can validate before you scale.
Private Label & ODM →Hitze supplies the trade only — wholesalers, contractors, importers and private-label brands. We do not sell to end consumers. For a stocking or private-label program, request samples and wholesale pricing.
FAQ
PP-R Pipe & Fittings — Frequently Asked Questions
What are the three types of Hitze PP-R pipe and their pressure ratings?
What is the benefit of fiber-glass reinforced (PPR-FB-PPR) pipe?
Is PPR pipe safe for potable (drinking) water?
What pipe sizes and fittings does Hitze offer in PP-R?
Can Hitze private-label PP-R for our brand, and what is the MOQ?
Get Started
Request PPR Samples & a Wholesale Quote
Tell us your type mix (ceramic-core, fiber-glass, PPR-AL-PPR), sizes, fittings and volumes — we reply with pricing, MOQ and the certification documents for your region.