Geberit Mapress CuNiFe Threaded Ball Valve
Technical Specification
- Manufacturer: Geberit
- Material:
- Pipe: CuNi10Fe1.6Mn (copper/nickel/iron alloy, material no. 2.1972.11)
- Valve: CrNiMo stainless steel
- Threaded nipple: Brass, supplied with screw cap
- Spindle caulk: PTFE
- Flange and ball seal: PTFE
- Seal ring: CIIR
- Operating Temperature: -20°C to +120°C
- Maximum Operating Pressure: 13 bar (1300 kPa)
- Applications: Industry, shipbuilding, salt water pipework
Description
This press-fit ball valve is manufactured from a copper-nickel-iron alloy that delivers exceptional resistance to corrosion in saltwater environments. It forms part of the Geberit Mapress CuNiFe system, which is certified for civil and military shipbuilding, drilling platforms, saltwater cooling systems and salt water-operated sprinkler systems.
The DN20 valve carries a 1" brass threaded nipple with a screw cap, while the valve mechanism is produced from CrNiMo stainless steel with PTFE sealing throughout. Rated to PN13 bar across an operating temperature range of -20°C to +120°C, it is suited to seawater, service and process water, cooling and heating water (with or without antifreeze), grey and black water with a pH value of 6 or above, wet extinguishing water and compressed air.
A black pressing indicator confirms the CuNiFe material at a glance, and the Mapress seal ring ensures that any unpressed connection leaks during pressure testing for immediate identification before commissioning.
Key Features & Benefits
- High corrosion resistance: The copper/nickel/iron alloy withstands salt water, including saturated solutions up to 25%, making it ideal for shipbuilding and marine cooling installations.
- Broad application range: Handles seawater, service and process water, cooling and heating water, suitable grey and black water, wet extinguishing water and compressed air within a single system.
- Secure press connection: The pressing indicator leaves any unpressed joint visibly leaking during the pressure test, so installation faults are caught before the system enters service.
- Contamination protection: A transparent protection plug keeps the pressing socket free from dust and dirt prior to installation.
- Durable construction: The CrNiMo stainless steel body and PTFE seals provide dependable sealing and a long service life across the full temperature range.
Materials & Dimensions
| Product Code | Manufacturer Code | DN | DNV | d, ø (mm) | G (inches) | L (cm) | L1 (cm) | L2 (cm) | Z (cm) | Z1 (cm) | PN (bar) |
| 493331 | 92132 | 20 | 20 | 22 | 1 | 13.6 | 5.6 | 10.3 | 4.5 | 4.2 | 13 |
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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