Underfloor plumbing set SiGMA-Li SIGMA LI Komplet podtynkowy 16×1/2×100 PE-RT (DWZ)

SiGMA-Li SIGMA LI Komplet podtynkowy 16×1/2×100 PE-RT (DWZ) is an underfloor/embedded plumbing set intended for concealed connections in heating and potable water installations. The set uses PE-RT piping with nominal dimensions 16×1/2×100 and a DWZ configuration, offering a corrosion-resistant polymer solution suitable for both renovation and new-build projects where compact recessed connections are required.

Advantages

The PE-RT material provides resistance to corrosion and mineral buildup, ensuring stable flow and long service life in domestic water and heating circuits. Standardized dimensions and fittings compatibility simplify installation and replacement of components. The compact recessed design reduces visible hardware and enables integration into walls or floor structures without compromising installation neatness or access when maintenance is needed.

Suitable for

• Concealed heating manifold connections in underfloor heating systems
• Hidden potable water distribution points in bathrooms and kitchens
• Renovation projects where existing walls or floors are adapted for new plumbing
• New-build installations requiring compact, recessed plumbing solutions

Key specifications

• Pipe material: PE-RT (polyethylene of raised temperature resistance)
• Nominal pipe size: 16 mm outer diameter with 1/2" connection interface and 100 mm recessed length
• Configuration: DWZ recessed mounting arrangement
• Application: potable water and heating systems
• Installation type: concealed/embedded in wall or floor structures

How to use

Prepare a suitable recess in the wall or floor structure to accommodate the set and ensure secure mounting. Connect the 16 mm PE-RT pipe to the 1/2" connection point using compatible fittings and follow standard sealing procedures. Verify alignment and compression or push-fit engagement according to the fitting manufacturer’s recommendations. After installation, test the system under working pressure to confirm there are no leaks before closing the wall or floor surface.

Usage recommendations

Use fittings and tools compatible with PE-RT piping and verify local codes for potable water and heating installations. Protect the exposed pipe ends and recess from debris during finishing works, and perform pressure testing after installation to ensure system integrity.