Press fitting coupling VIEGA Sanpress 18 mm muffer, copper press connector

VIEGA Sanpress 18 mm press fitting coupling is a copper press connector engineered for creating reliable, permanent joints in potable water and heating systems without the need for soldering or threading. Designed to work with VIEGA Sanpress press tools, this 18 mm muffer delivers a pressed mechanical seal suitable for both new installations and repair work. The fitting's copper construction ensures compatibility with common copper piping and provides corrosion-resistant performance in domestic and light commercial applications.

Advantages

The coupling offers a secure pressed connection that reduces installation time compared with traditional soldered joints and eliminates an open-flame process. Its copper material provides good thermal conductivity and long-term durability in water and heating circuits. Compatibility with standard Sanpress press tools allows consistent, repeatable connections, and the compact 18 mm size is suitable for confined spaces. The design minimizes the risk of leaks when installed correctly using the recommended pressing method.

Suitable for

• Piping repairs in residential potable water systems
• Heating system installations and branch connections
• Retrofit and renovation projects where soldering is impractical
• Commercial light plumbing applications using 18 mm copper pipe

Key specifications

• Material: copper
• Connection type: press coupling (muffer) compatible with Sanpress press tools
• Nominal diameter: 18 mm
• Intended media: potable water and heating fluids
• Application: permanent pressed mechanical seal, no soldering or threading required

How to use

Select the correct 18 mm coupling for the pipe diameter and confirm compatibility with the Sanpress press tool and jaws. Prepare the copper pipes by cutting square, deburring and cleaning the ends to ensure full insertion. Insert both pipe ends into the coupling until they reach the internal stop. Position the press tool over the fitting shoulder and perform the press according to the tool manufacturer’s instructions, completing the pressing cycle to form the mechanical seal. After pressing, visually inspect the press mark and perform pressure testing of the system as required by local standards.

Usage recommendations

Use only VIEGA-recommended pressing jaws and tools for reliable joint formation. Ensure pipes are free of contaminants and fully inserted before pressing. Follow applicable installation standards and perform pressure testing after installation to verify leak-free connections.