Geberit Mapress CuNiFe Pipe
Technical Specification
- Manufacturer: Geberit
- Material: CuNi10Fe1.6Mn, material no. 2.1972.11
- Surface roughness: 10 µm
- Thermal expansion: 0.017 mm/(m·K)
- Thermal conductivity, pipe: 50 W/(m·K)
- Specific thermal capacity: 377 J/(kg·K)
- Operating Temperature: 0°C to 100°C
- Maximum Operating Pressure: 13 bar (1300 kPa)
- Applications: Industry, shipbuilding, salt water pipework
Description
Engineered from a cupro-nickel alloy, this system pipe is purpose-built for demanding environments where salt water and corrosion present a constant challenge. Its high level of corrosion resistance makes it exceptionally well suited to pipelines carrying salt water, including saturated solutions up to 25%, as well as service, pool and heating water applications.
Certified for civil and military shipbuilding, drilling platforms, saltwater cooling systems and saltwater-operated sprinkler systems, it is a dependable choice for marine, offshore and industrial installations. Seamlessly drawn and finished with a protective cap.
Key Features & Benefits
- High corrosion resistance: Ideal for salt water and saturated saline solutions up to 25%.
- Smooth internal surface: A surface roughness of 10 µm promotes optimum flow behaviour and reduces the risk of internal fouling.
- Certified for demanding sectors: Approved for civil and military shipbuilding and drilling platforms.
- Wide size range: Available from DN12 to DN100 in standard 6m lengths to suit varied installation requirements.
Materials & Dimensions




| Product Code | Manufacturer Code | DN | d, ø (mm) | di, ø (mm) | s (mm) | L (m) |
|---|---|---|---|---|---|---|
| 493337 | 56319 | 12 | 15 | 13 | 1 | 6 |
| 493338 | 56321 | 20 | 22 | 20 | 1 | 6 |
| 493339 | 56326 | 20 | 22 | 19 | 1.5 | 6 |
| 493340 | 56322 | 25 | 28 | 25 | 1.5 | 6 |
| 493341 | 56323 | 32 | 35 | 32 | 1.5 | 6 |
| 493342 | 56324 | 40 | 42 | 39 | 1.5 | 6 |
| 493343 | 56325 | 50 | 54 | 51 | 1.5 | 6 |
| 493344 | 56327 | 65 | 76.1 | 72.1 | 2 | 6 |
| 493345 | 56328 | 80 | 88.9 | 84.9 | 2 | 6 |
| 493346 | 56329 | 100 | 108 | 104 | 2.5 | 6 |
Application information
| Application Purposes | Operating Temperature | Maximum Operating Pressure |
| For seawater | 0°C–100°C | 13 bar (1300 kPa) |
| For sprinklers (wet) | 0°C–70°C | 13 bar (1300 kPa) |
| For cooling water without antifreeze agent | 0°C–100°C | 13 bar (1300 kPa) |
| For cooling water with antifreeze agent | -30°C–+120°C | 13 bar (1300 kPa) |
| For service water | 0°C–100°C | 13 bar (1300 kPa) |
| For grey and black water with pH value > 6.0 | 0°C–100°C | 13 bar (1300 kPa) |
| For extinguishing water (wet) | 0°C–70°C | 13 bar (1300 kPa) |
| For mineral and lubricating oil | Upon request | Upon request |
| For motor fuels (e.g. diesel) | Upon request | Upon request |
| For compressed air (oil purity class 0-3) | 0°C–100°C | 10 bar (1000 kPa) |
| For compressed air (oil purity class 0-4) | 0°C–100°C | 10 bar (1000 kPa) |
| For negative pressure (1) | 0°C–40°C | Abs. ≥ 0.2 bar / 20 kPa |
| For inert gases (e.g. nitrogen) | Upon request | Upon request |
(1) Usable negative pressure for Geberit piping systems: The usable negative pressure is calculated on the basis of the air pressure at the place of installation minus the absolute pressure of 200 mbar. Example: 980 mbar air pressure - 200 mbar absolute pressure = 780 mbar usable negative pressure in the piping system.

