Geberit Mapress CuNiFe Stem Elbow 15°
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 cupro-nickel stem elbow delivers a precise 15° change of direction with one press socket and one plain end for onward connection. The copper/nickel/iron alloy offers outstanding resistance to corrosion, making it well-suited to salt-water systems, including saturated solutions up to 25% concentration.
The fitting features the distinctive black pressing indicator that identifies the CuNiFe material at a glance. It is certified for civil and military shipbuilding and for use on drilling platforms, and is approved for service, pool and heating water, saltwater cooling systems and salt water sprinkler systems.
Typical applications include cooling and heating water with or without antifreeze, service and process water, grey and black water with a pH value of 6 or above, seawater, wet extinguishing and sprinkler systems, compressed air, inert gases such as nitrogen, and negative pressure duties across industry and shipbuilding. A transparent protection plug keeps the socket free from dust and dirt before installation.
Key Features & Benefits
- High corrosion resistance: The copper/nickel/iron alloy withstands salt water and saturated saline solutions.
- Certified for shipbuilding: Approved for civil and military vessels and drilling platforms.
- Black pressing indicator: Enables fast visual confirmation of the CuNiFe material and can be removed by hand once pressing is complete.
- Leak detection when unpressed: The specially contoured seal ring causes unpressed joints to leak.
Materials & Dimensions
| Product Code | Manufacturer Code | DN | d, ø (mm) | arc ° | L (cm) | H (cm) | Z (cm) |
|---|---|---|---|---|---|---|---|
| 493796 | 68729 | 25 | 28 | 15 | 3.6 | 4.3 | 1.3 |
| 493797 | 68730 | 32 | 35 | 15 | 3.2 | 4.1 | 0.6 |
| 493798 | 68731 | 40 | 42 | 15 | 3.7 | 4.7 | 0.7 |
| 493799 | 68732 | 50 | 54 | 15 | 4.4 | 5.5 | 0.9 |
| 493800 | 68734 | 80 | 88.9 | 15 | 8.5 | 9.5 | 2.5 |
| 493801 | 68735 | 100 | 108 | 15 | 10.3 | 11.7 | 2.8 |
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.
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