aquatherm green is a system of plastic pipes for drinking water and water installations in buildings and technical environments. The pipe system is designed for water-carrying networks in a variety of applications – from drinking water supply and use in shipping and agriculture to swimming pools and industrial plants.
What is AQUATHERM GREEN and how does the PP pipe system for water pipes work?
The aquatherm green pipe system, made of polypropylene (PP-R), ensures the reliable and safe distribution of fluids in pipe networks. The plastic pipes can be used in applications ranging from drinking water supply to swimming pools and agricultural irrigation, right through to installations on board yachts and ships.
In addition to pipes, more than 450 coordinated connection and fitting elements, as well as valves, are available, covering all installation scenarios. The components are joined using the of heat fusion process.
Advantages of plastic pipes for water supply
aquatherm green is free from plasticisers, odourless and tasteless, and contains no heavy metals. The hygienic suitability of the PP water pipes has been confirmed through independent testing by the Hygiene Institute in Gelsenkirchen. The system meets the highest requirements for drinking water quality, including thermal disinfection.
Unlike metal pipes, all variants of aquatherm green remain permanently corrosion-resistant and low-maintenance. This makes the plastic pipes suitable for water supply lines even under demanding operating conditions. The multi-layer and fibre-reinforced variants also offer increased pressure resistance and reduced linear expansion.
Plastic pipes for water transport in various applications
The system is designed for a wide range of applications – aquatherm green can be used wherever pipework needs to be permanently leak-proof, corrosion-resistant and hygienically reliable.
The PP water pipes are suitable for drinking water distribution, underground installations, refurbishment projects, as well as chemical and thermal disinfection processes. On board ships, aquatherm green impresses with its low weight and high chemical resistance. Here, it is the right choice for drinking water, hot and cold water distribution, ballast water transport, and wastewater pipes .
Furthermore, aquatherm green pipes can be used in swimming pool technology, leisure facilities and agricultural irrigation systems. Due to its high chemical resistance, aquatherm green is also suitable for the transporting demanding media and chemicals in industrial environments, provided the material is compatible with the respective medium.
Product variants of AQUATHERM GREEN
aquatherm green is available in several variants – from single-layer pipes for standard applications to multi-layer, fibre-reinforced and UV-resistant versions for more demanding conditions. Detailed information on the individual PP water pipe variants can be found on the linked product pages.
What should you know about the technical features of AQUATHERM GREEN?
The diameter of the PP water pipe determines its location and intended use. Pipes and fittings must be compatible with one another.
- aquatherm green S: Ø 20–315 mm
- aquatherm green MF: Ø 20–32 mm
- aquatherm green MF UV: Ø 20–32 mm
- aquatherm green MF RP: Ø 32–315 mm
- aquatherm green MF RP UV: Ø 32–315 mm
The SDR (Standard Dimension Ratio) indicates the ratio between the outer diameter and wall thickness. The rule is: the greater the wall thickness, the lower the SDR value and the more pressure-resistant the plastic water pipe. aquatherm GREEN PP water pipes are available in the following SDR sizes:
- SDR 6: aquatherm green S
- SDR 7.4: aquatherm green S | aquatherm green MF | aquatherm green MF UV
- SDR 9: aquatherm green MF RP | aquatherm green MF RP UV
- SDR 11: aquatherm green S
The plastic pipes for water supply are made from corrosion-resistant polypropylene and do not require any corrosion protection. The material is opaque, preventing algae growth inside the pipe. Compared to metal pipes, PP water pipes also generate less flow noise.
The aquatherm green system includes all components required for a complete pipework installation:
- Pipes in coils and cut lengths
- Fittings
- Flange sleeves for flanged connections
- Fittings and accessories
- Adapter fittings from polypropylene to metal or metal to polypropylene
- Weld-in and weld-on sockets
- Manifolds
- Shut-off valves
- Welding equipment and welding tools
- Cutting tools
- Installation aids and fixings
aquatherm green pipes and fittings can be used with components made of different materials. It must be ensured that the operating parameters designed for polypropylene do not adversely affect these components. Conversely, operating parameters defined for other materials must not damage the PP pipes and fittings installed in the system.
If aquatherm pipes and fittings are classified as resistant to the media being conveyed, this does not automatically apply to the dissimilar material components within the installation. Before installation, ensure that all components used in the pipework system are compatible with the media being conveyed.
Please note: whilst aquatherm pipes and fittings do not require corrosion protection, this may be necessary for metallic components in the system. Do not use aquatherm pipes and fittings with non-aquatherm components under conditions for which those other components are unsuitable.
If copper pipes are installed together with PP-R pipes in hot water circulation systems, operating conditions must be controlled to prevent corrosion or erosion of the copper pipes. Before connecting to an existing copper system, the copper content should be checked. The concentration should not exceed 0.1 ppm.
Hot water circulation systems with plastic water supply lines must be designed so that the maximum water temperature does not exceed 60 °C. A limit of 50 °C applies at taps. Thermal disinfection may be carried out periodically at 70 °C or higher. Flow velocities must not exceed 0.5 m/s, and control valves in each circulation loop are mandatory.
These requirements apply exclusively to hot water circulation systems in drinking water applications – not to cold water, heating or cooling systems.
aquatherm green holds numerous international approvals confirming system quality, including DVGW, SKZ and HIG (Germany), ÖVGW (Austria), WRAS (UK), AENOR (Spain), SAI-Global (Australia), as well as additional certifications in France, Israel, Poland, Sweden, Italy, Canada, New Zealand, Portugal and Hungary.
The hygienic suitability of the plastic pipes for drinking water applications is documented by test certificates from the Hygiene Institute Gelsenkirchen and confirmed through ongoing testing. No hygienically critical additives are required during installation, as the joints are formed by fusion.
Frequently asked questions about our plastic pipes for water supply
aquatherm green is used wherever water-carrying pipes must be permanently leak-proof, corrosion-resistant and hygienically reliable – in drinking water supply, ship and yacht building, swimming pools and leisure facilities, agriculture and the transport of chemical media.
The system is suitable for drinking water installations in both cold and hot water systems, hot water circulation systems, underground pipes, and mixed installations during renovations. It is also ideal for applications with increased requirements for chemical resistance and hygiene.
AQUATHERM GREEN is available in several variants: single-layer for standard applications, multi-layer and fibre-reinforced for increased stability and reduced linear expansion, pressure-resistant for more demanding operating conditions, and UV-resistant for outdoor installation. The choice of PP pipe for water supply systems depends on the specific requirements regarding pressure, temperature and operating environment.
Material resistance, dimensions and pressure ratings are crucial. aquatherm green is available in diameters from 20 to 315 mm and in various SDR ratings. The corrosion-resistant PP material requires no additional protection and is opaque.
Connections are made by fusion: the pipe and fitting are fused together without adhesives or sealants. In mixed installations, the media compatibility of all components must be checked in advance. In hot water circulation systems, operating temperatures, flow rates and hydraulic balancing must comply with applicable standards.
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