The all-rounder

Geberit Mapress Stainless Steel is a highly effective supply system and can be used for diverse mediums. Geberit places the highest requirements during manufacture. The high molybdenum content, as an example, ensures a particularly high corrosion resistance. The result is plain to see – a million times over.

Geberit Mapress Stainless Steel applications

  • Potable water

  • Heating

  • Gas

  • Sprinklers

  • Industry

  • Treated water

  • Cooling

  • Compressed air

  • Gaseous media

  • Vacuum

Many good reasons for Geberit Mapress Stainless Steel


Simple connection

Pressing jaw guide for safety

The defined jaw guide on the Geberit Mapress Stainless Steel fitting ensures that the pressing jaw is positioned in exactly the right position. It also prevents any risk of the joint slipping or being pressed in the wrong place. This prevents failed pressing sequences and ensures reliable and durable connections.

Blue pressing indicator

Fast visual check

The blue colour of the pressing indicator on the fitting enables clear identification of the material. In addition, a print on the pipe end facilitates the identification of the dimensioning. The pressing indicator can be simply removed manually after the correct pressing operation.

Mechanical strength

Mechanical strength

The coordinated components lend the system a high load bearing capacity. Operating pressures of 2.5 MPa (25 bar) and more are possible. Due to the high level of mechanical strength, a wide range of applications is possible which extends far beyond the usual domestic installations.

Perfectly smooth

Material surface

The extremely smooth surface is a prerequisite for added system safety and long-term tightness. The weld seams are smoothed by a mechanical finishing treatment for optimum flow behaviour and a perfectly positioned seal ring. The roughness values are therefore well below the limits set out in standards and guarantee the tightness of the system.

Geometry of the Geberit Mapress Stainless Steel fittings

Compact design

Thanks to the compact geometry of the Geberit Mapress Stainless Steel fittings, they require less space and therefore tighter fitting combinations are possible. Furthermore, Geberit offers numerous fittings that are coordinated with a wide range of applications.

Welded pipe seam

Pipes with a homogeneous material structure

A special thermal treatment creates a homogeneous material structure in the weld seams. The seams are also smoothed mechanically. This results in the pipes and fittings behaving uniformly during the pressing operation.

Protection plug

Protection against dust and dirt

The Geberit Mapress Stainless Steel sockets are sealed with a plug that protects the sockets at the building site from dust and dirt. The colour of the protection plug also identifies the application.

Weld seam of the Geberit Mapress Stainless Steel fitting

Thermally perfect weld seam execution

A clean weld seam on the contact surface of the seal ring contributes to ensuring the system's permanent tightness and to cutting susceptibility to corrosion. The weld seam processing has to meet Geberit's stringent quality demands. A special thermal treatment ensures a homogenous material structure and thereby an optimum pressing operation.

Spheroidisation of the Geberit Mapress seal ring

For permanent fixture and a high level of safety

During the pressing procedure, the seal ring is given a pre-defined shape by the pressing jaw of the Geberit Mapress pressing tools. During this process the ring absorbs additional energy for permanent and reliable tightness.

Additional safety

Detecting unpressed fittings

The Geberit Mapress seal ring provides the pressing indicator with additional safety. Due to its special contours, unpressed connections leak during the pressure test. This recognition feature prevents harm later during operation.


High material and system safety

The optimum composition of the alloy components results in a high degree of material and system safety. Our extensive works standard, which goes beyond the required standards, is the reason for this safety: the Geberit Mapress Stainless Steel system pipes and fittings have a molybdenum content of at least 2.3%.


Nominal width DNDimension d x s (mm)



   Geberit Mapress Stainless Steel pressfittings

  • CrNiMo stainless steel 1.4401

  • Pressing indicator to test if the fittings are pressed correctly

  • Blue pressing indicator indicates stainless steel

  • Dimension printed on the pressing indicator

  • Protection plug prevents fittings from becoming dirty

  • Non-pressed connections are leaky and immediately identifiable during a pressure test

  • More than 500 different fittings are available

Special O-rings and the available pipe dimensions make the pressing system the right choice for an extremely wide range of applications. The following applications each relate to the combination of the Geberit Mapress seal ring with the Geberit Mapress Stainless Steel system pipe CrNiMo.

3-1.jpg   Geberit Mapress seal ring CIIR, black
     Liquid media
  • Hot and cold drinking water

  • Heating water

  • Cooling water without antifreeze agent

  • Cooling water with antifreeze agent

  • Remote network heating water ≤ 120 °C

  • Saturated steam ≤ 120 °C

  • Service water

  • Ultrapure water (except pharmaceutical water)

  • Rainwater with a pH value > 6.0

  • Grey and black water with pH value > 6.0

  • Extinguishing water (wet)

  • Sprinkler (wet)

  • Chemicals and technical liquids

   Gaseous media
  • Compressed air (oil purity class 0–3)

  • Negative pressure

  • Inert gases

  • Industrial gases

3-2.jpg Geberit Mapress seal ring FKM blue
    Liquid media
  • Remote network heating water ≤ 140 °C

  • Thermal medium (solar)

  • Mineral oils

  • Fuels

  • Chemicals and technical liquids

   Gaseous media
  • Compressed air (oil purity class 0–X)

  • Industrial gases


  Geberit Mapress seal ring HNBR yellow

  • Natural gases

  • Liquefied gases

  • Biogases

3-4.jpg    The Geberit Mapress Stainless Steel pressfittings which are suitable for gas installations are equipped with a yellow seal ring made of HNBR. They can be distinguished from other fittings through their yellow marking and yellow protection plug.

3-5.jpg     Geberit Mapress seal ring FKM white

Saturated steam ≤ 155 °C (also operated cyclically)


    Geberit Mapress Stainless Steel system pipe CrNiM

  • An increased molybdenum content ensures stability and the highest level of protection against corrosion.

  • Special thermal and mechanical treatment of the fittings creates a homogeneous, high-quality material structure.

  • The effective treatment ensures both optimum formability and also the necessary long-term tightness.

  • Smooth surfaces ensure a perfect fit of the seal ring and optimum hygienic properties.

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