
PP-R Thermal Insulated Pipe
A three-layer PP-R pipe with a thermal insulating middle layer, for hot and cold water runs where heat loss matters.
PN10/20 · 20 bar · OD 20–63 mm · 4 m lengths · White
- Hot water distribution
- Cold water distribution
- Well water and industrial transfer
Why this pipe
- Better thermal resistivity than standard PP-R pipes
- Resistant to corrosion and aggressive environments
- Slippery inner surface — no organic or inorganic sediment build-up
- Composition
- 3 layers (outer & inner layer of PP-R, thermal insulated middle layer)
- Pressure rating
- 20 bar (PN10/20)
- Length
- 4 metres
- Colour
- White
- Manufactured to
- KS ISO minimum requirements
Catalogue advantages
Thermal resistance
Have better thermal resistivity than standard PP-R pipes.
Chemical & mechanical endurance
Very high resistance against abrasion by hard particles. This is especially important in cases of well water or industrial applications, where the transferred liquids may contain abrasive particles.
Corrosion and chemical resistance
These pipes are resistant to corrosion and aggressive environment; their transmission capacity is high due to smooth inner surface.
Environmental cleanness
Polypropylene does not react with water, therefore, does not add any taste to the water. Since their inner surface is slippery, organic and inorganic sediments and impurities are not observed.
Durability
It can endure the temperature and pressure strain of hot water systems. At the same time it is able to structurally withstand impacts even in cold weather installations without any risk of cracking or breaking, unlike other common types of plastic piping.
Dimensions, pressure ratings and product codes
| Dimension | 20 | 25 | 32 | 40 | 50 | 63 |
|---|---|---|---|---|---|---|
| OD (mm) | 20 | 25 | 32 | 40 | 50 | 63 |
| ID (mm) | 12.8 | 16.0 | 20.6 | 25.8 | 32.4 | 40.8 |
| S (mm) | 3.60 | 4.50 | 5.70 | 7.10 | 8.80 | 11.1 |
The catalogue publishes dimensions for 20–63 mm, while product codes are listed up to 110 mm. Confirm availability of sizes above 63 mm with Astral Industries Limited.
| PN | 10°C – 30°C | 30°C – 65°C | 80°C – 90°C |
|---|---|---|---|
| 10/20 | 20 bar | 18 bar | 5.5 bar |
Product codes
PN10/20
- PPT20,10
- PPT25,10
- PPT32,10
- PPT40,10
- PPT50,10
- PPT63,10
- PPT75,10
- PPT90,10
- PPT110,10
Catalogue pages 6, 14 and 20
Other PP-R systems
PP-R Pipe
The standard single-layer polypropylene random copolymer pipe for hot and cold water plumbing inside buildings.
View productPP-R Composite Pipe
A three-layer PP-R pipe rated to 25 bar, built for hot and cold water transfer, under-floor and central heating.
View productPP-R UV Composite Pipe
A four-layer 25 bar composite pipe with a UV-stabilised black outer layer, for pressure lines that run in the open.
View productPP-R UV Protected Pipe
A two-layer PP-R pipe with a UV-stabilised black skin over a green PP-R core, built for drinking water lines exposed to sunlight.
View product
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Every dimension table, pressure rating and product code is published on the product range page.

