Geberit Mapress CuNiFe Stem Elbow 90°
Technical Specification
- Manufacturer: Geberit
- Material: CuNi10Fe1.6Mn, material no. 2.1972.11
- Operating Temperature: 0°C to 100°C
- Maximum Operating Pressure: 13 bar (1300 kPa)
- Applications: Industry, shipbuilding, salt water pipework
Description
This 90° stem elbow redirects flow through a right angle while maintaining the high corrosion resistance that defines the CuNiFe system. Manufactured from a cupro-nickel alloy and identified by its black pressing indicator, it is purpose-built for pipelines carrying salt water, including saturated solutions up to 25% concentration.
The fitting is certified for civil and military shipbuilding and for use on drilling platforms, covering service water, pool and heating water, saltwater cooling circuits and salt water-operated sprinkler systems. Thermal and mechanical treatment produces a high-quality material structure, delivering uniform behaviour during pressing and reliable long-term tightness.
A press-fit plain-end connection ensures fast, repeatable installation, while the seal ring geometry means any unpressed joint will leak during pressure testing, so faults are identified before the system enters service.
Key Features & Benefits
- Superior corrosion resistance: the CuNi10Fe1.6Mn alloy withstands salt water and saturated saline solutions, making it ideal for marine and shipbuilding environments.
- Marine and defence certified: approved for civil and military shipbuilding and offshore drilling platforms.
- Leak-detection safety: the seal ring is contoured so that unpressed connections leak during pressure testing.
- Compact geometry: the space-saving design allows tighter fitting combinations in confined pipe runs.
Materials & Dimensions
| Product Code | Manufacturer Code | DN | d, ø (mm) | arc ° | L (cm) | H (cm) | Z (cm) |
|---|---|---|---|---|---|---|---|
| 493814 | 68302 | 12 | 15 | 90 | 3.8 | 4.8 | 0.8 |
| 493815 | 68304 | 20 | 22 | 90 | 4.7 | 5.8 | 2.6 |
| 493816 | 68305 | 25 | 28 | 90 | 5.7 | 6.6 | 3.4 |
| 493817 | 68306 | 32 | 35 | 90 | 6.8 | 7.7 | 4.2 |
| 493818 | 68307 | 40 | 42 | 90 | 8 | 8.8 | 5 |
| 493819 | 68308 | 50 | 54 | 90 | 10 | 10.8 | 2.7 |
| 493820 | 68309 | 65 | 76.1 | 90 | 15.7 | 16.7 | 10.4 |
| 493821 | 68310 | 80 | 88.9 | 90 | 18.4 | 19.5 | 12.4 |
| 493822 | 68311 | 100 | 108 | 90 | 22.6 | 24.1 | 15.1 |
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.
Downloads
If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.
