Copper Viega Profipress G reduction fitting 28x18 mm with SC‑Contur, model 346591

Viega Profipress G copper reduction fitting 28x18 mm with SC‑Contur (model 346591) is a press‑connection component for joining copper pipes of different diameters within potable water, heating and cooling systems. The fitting is manufactured for use with the Profipress press‑connection system and features SC‑Contur leak detection technology to ensure that open or incompletely pressed connections are readily identifiable during pressure testing. Constructed from copper, it is suitable for installations where corrosion resistance and compatibility with copper piping are required.

Advantages

The Viega Profipress G reduction fitting provides reliable mechanical joints without the need for flame or soldering, reducing installation time and eliminating heat‑related risks. SC‑Contur enhances safety by creating detectable leakage when a joint is not fully pressed, supporting faster quality control during commissioning. The copper material ensures long service life in water and heating applications and maintains compatibility with standard copper tube fittings and the Profipress press tooling.

Suitable for

• Connecting 28 mm to 18 mm copper pipelines in potable water systems
• Reducing pipe diameter in heating circuit and radiator connections
• Use in cooling and chilled‑water circuits where press fittings are specified
• Applications requiring press‑connection installation methods without soldering

Key specifications

• Material: copper
• Connection type: press fitting compatible with Profipress system
• Sizes: 28 mm × 18 mm (reduction)
• Safety feature: SC‑Contur leak‑detectable cavity design
• Suitable media: potable water, heating and cooling fluids

How to use

Ensure pipe ends are clean, de‑burred and free of scale before assembly. Place the fitting onto the prepared copper tube ends and align according to the Profipress system instructions. Use the appropriate Profipress pressing tool and jaw size for the 28 mm and 18 mm ends to perform the press operation. After pressing, verify that the joint shows the correct press profile and perform pressure testing to confirm system integrity; SC‑Contur assists by indicating any unpressed connections during testing.

Usage recommendations

Follow Viega and local standards for installation, press tool calibration and maintenance. Use manufacturer‑approved press jaws for the specified diameters, perform pressure tests after assembly, and avoid mixing dissimilar metals without appropriate corrosion protection. Store fittings in a dry environment and handle to prevent contamination of sealing surfaces prior to installation.