Pipe reducer GEBERIT MAPRESS C-STAHL 28×22 mm, model 22309

GEBERIT MAPRESS C-STAHL pipe reducer 28×22 mm (model 22309) is a carbon steel press-fit fitting designed to join two pipes of different diameters without soldering. It is made for use with MAPRESS C-STAHL press technology and forms a gas-tight, mechanically reliable connection suitable for water distribution and heating systems. The reducer is intended for installation in residential and commercial plumbing where a transition from 28 mm to 22 mm pipe is required.

Advantages

The press-fit design allows fast and consistent connections without open flame, reducing installation time and risk on site. Manufactured to MAPRESS C-STAHL standards, the reducer ensures dimensional accuracy and compatibility with MAPRESS presses and jaws. Its robust carbon-steel construction provides mechanical strength for distribution lines and heating circuits while the press joint yields leak-resistant performance when installed according to the manufacturer's procedures.

Suitable for

• Transitioning pipelines from 28 mm to 22 mm in potable water distribution
• Branching or downsizing supply lines in heating systems
• Repairs and system modifications in residential and commercial buildings
• Installations where solder-free press connections are required

Key specifications

• Material: carbon steel suitable for MAPRESS C-STAHL systems
• Connection type: press-fit on both ends
• Nominal sizes: 28 mm to 22 mm
• Application: potable water and heating distribution lines
• Compatibility: designed for MAPRESS C-STAHL press tools and jaws

How to use

Prepare pipes by cutting squarely and deburring the inner and outer edges. Verify that the pipe ends and fitting are clean and free from dirt, grease or damage. Mark insertion depth on the pipe, insert the pipe fully into the reducer, and perform the press operation using the correct MAPRESS C-STAHL press tool and compatible jaw/profile. After pressing, inspect the joint visually to confirm a complete press and check for any signs of deformation or gaps.

Usage recommendations

Follow manufacturer guidelines for press tool selection, jaw size and maintenance. Use the reducer only with compatible MAPRESS C-STAHL pipes and in systems operating within the material's specified temperature and pressure limits. For potable water and heating applications, ensure installation complies with local plumbing codes and standards.