Viega 1/2" Dull Black Sealing Element

The Viega 1/2" Dull Black Sealing Element (Part No. 17768) is a precision FKM sealing component engineered for use with Viega ProPress CTS size fittings. This sealing element is the critical interface between press-fit connection points, ensuring reliable, leak-free joints in plumbing and HVAC applications where press technology is deployed. The dull black finish provides corrosion resistance and blends seamlessly with ProPress system components.

Constructed from FKM (fluoroelastomer) material, this sealing element withstands the mechanical and thermal demands of modern hydronic and refrigeration systems. The 1/2" size corresponds to standard CTS (Copper Tube Size) tubing, the industry standard for residential and light commercial plumbing installations. The compact 1 x 1 x 1 inch profile allows for tight installation spaces typical in valve assemblies and manifold configurations. ProPress sealing elements are designed to work within the tolerances of Viega's press tool systems, where consistent compression force creates permanent, solder-free connections.

This sealing element is specified for plumbers, HVAC technicians, and contractors who install or service Viega ProPress systems in residential, commercial, and industrial environments. Replacement sealing elements are essential wear items in press-fit applications, required when connections are disassembled or when fitting components are replaced. Maintaining original manufacturer sealing elements ensures the integrity of the pressed connection and compliance with code-approved installation standards. The Viega 1/2" Dull Black Sealing Element (UPC 691514177687) is a direct replacement for OEM Viega applications.