Geberit Mapress Carbon Steel Closed circuits reliably pressed
The economical alternative
Geberit Mapress Carbon Steel was designed for installations in which economy is of the highest priority. The Geberit Mapress Carbon Steel system pipes are available in two designs – with a cream plastic jacketing made of PP or with an outside zinc plating. System pipes with both inside and outside zinc plating are also available for special applications.
Geberit Mapress Carbon Steel applications
- Heating
- Compressed Air
- Industry
Many good reasons for Geberit Mapress Carbon Steel

Assortment
Dimensions
Fittings
Seals
System pipes
Dimensions
| Nominal width (DN) | Dimension d x s (mm) | Geberit Mapress Carbon Steel with PP jacketing | Geberit Mapress Carbon Steel, outside zinc-plated | Geberit Mapress Carbon Steel, inside and outside zinc-plated |
|---|---|---|---|---|
| 10* | 12.0 x 1.2 | X | X | |
| 12* | 15.0 x 1.2 | X | X | X |
| 15* | 18.0 x 1.2 | X | X | X |
| 20* | 22.0 x 1.5 | X | X | X |
| 25* | 28.0 x 1.5 | X | X | X |
| 32* | 35.0 x 1.5 | X | X | X |
| 40* | 42.0 x 1.5 | X | X | X |
| 50* | 54.0 x 1.5 | X | X | X |
| 65 | 76.1 x 2.0 | X | X | |
| 66.7 | 66.7 x 1.5 | X | X | |
| 80 | 88.9 x 2.0 | X | X | |
| 100 | 108.0 x 2.0 | X | X |
*Can be bent
Fittings
Geberit Mapress Carbon Steel fittings
- Non-alloy steel 1.0034, outside zinc-plated with additional chromatised protective coating
- Red pressing indicator indicates carbon steel
- Dimension printed on the pressing indicator
- Non-pressed connections are leaky and immediately identifiable during a pressure test
- Protection plug prevents fittings from becoming dirty
- More than 400 different fittings are available

Seals
Special O-rings and the available pipe dimensions make the Geberit Mapress Carbon Steel pressing system the right choice for an extremely wide range of applications.
Geberit Mapress seal ring CIIR black
- Heating water
- Cooling water without antifreeze agent
- Cooling water with antifreeze agent
- Remote network heating water ≤ 120 °C
- Extinguishing water (wet)
- Sprinkler (wet)
- Compressed air (oil purity class 0–3)
- Inert gases
Geberit Mapress Carbon Steel fittings are delivered as standard with Geberit Mapress seal rings CIIR black.

Geberit Mapress seal ring FKM blue
- Remote network heating water ≤ 140 °C
- Thermal medium (solar)
- Mineral oils
- Fuels
- Compressed air (oil purity class 0–X)

System pipes
Geberit Mapress Carbon Steel system pipe with plastic coating made of PP
- Ideal for visually discreet surface mounting
- Non-alloy steel 1.0034
- Available dimensions from DN 10 to DN 50
- Plastic jacketing made of PP, cream (RAL 9001)

Geberit Mapress Carbon Steel system pipe, outside zinc-plated
- Ideal for economical installations
- Non-alloy steel 1.0034
- Available dimensions from DN 10 to DN 100
- Corrosion protection through zinc plating
- Marked with red inscription

Geberit Mapress Carbon Steel system pipe inside and outside zinc-plated
- Ideal for compressed air
- Non-alloy steel 1.0215
- Inside and outside zinc-plated system pipes
- Available dimensions from DN 12 to DN 100
- Marked with black inscription

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