Geberit Mapress stainless steel reducer with press end: d=54mm, d1=22mm 32321

Professional reduction connection for sanitary and industrial installations

The Geberit Mapress stainless steel reducer enables a smooth transition between pipes of different diameters in stainless steel installation systems. The model identified by catalog number 32321 performs a reduction from DN 50 (54 mm) to DN 20 (22 mm), allowing for the construction of extensive piping routes requiring a change in cross-section.

The element is made of 316 (1.4401) stainless steel - a chromium-nickel-molybdenum alloy compliant with the EN 10088 standard, which is characterized by increased resistance to hydrogen corrosion and the effects of chlorides. The wall thickness at the larger connection is 1,5 mm, and at the smaller one - 1,2 mm, ensuring adequate mechanical strength while maintaining the optimal mass of the entire set.

Construction and connection types

The main side connection consists of a press socket with an M-jaw profile - a standard solution in the Geberit Mapress system, enabling fast and secure installation using press fittings. The length of this segment is 41,5 mm, which guarantees stable seating in the pipe.

The reduction side is terminated with a socket end with a length of 53,5 mm. This type of connection allows for the insertion of a smaller cross-section pipe without the need for additional clamping elements - simply slide the pipe to the appropriate depth and secure the connection.

A factory-installed seal made of CIIR (chlorobutadiene rubber) ensures tightness even with a single press of the fitting. The product is factory-capped with a transparent protective socket insert, which protects the seal from contamination during transport and storage before installation.

Scope of applications and medium compatibility

The reducer belongs to the wide family of Geberit Mapress Stainless Steel components, adapted for working with many types of media:

• Potable water - both cold and hot,
• Heating water and district heating networks up to 120°C,
• Chilled water - with or without antifreeze additive,
• Saturated steam up to 120°C,
• Process and treated water,
• Rainwater as well as grey and black water with pH >6,0,
• Firefighting water and sprinkler installations,
• Compressed air (oil cleanliness class 0-3),
• Inert gases (e.g., nitrogen), industrial gases,
• Technical liquids and chemicals.

The CIIR seal material performs well in typical water installation conditions, although for aggressive chemical media or high temperatures, it is worth verifying compatibility with the manufacturer's technical documentation.

Operating parameters and characteristic features

The maximum working pressure at a temperature of 20°C is 16 bar, allowing the reducer to be used in most residential, commercial, and industrial installations. The total length of the element is 95 mm.

An important design feature is the so-called visual press indicator - an unpressed connection remains leaky, which eliminates the risk of overlooking an improperly executed installation. This solution significantly increases installation safety and accelerates quality control on the construction site.

The model has a simple shape without eccentricity - the reduction is carried out axially through a smooth narrowing of the inner wall. The high tensile strength of 316 steel ensures the durability of the connection even under mechanical loads typical for above-ground and in-wall installations.

The product is dedicated to Geberit Mapress stainless steel piping systems - full compatibility occurs both on the press socket side (M profile) and the socket end side, which fits system pipes with appropriate DN 20 nominal diameter parameters.