PVC TT Flat Duct For Under‑floor Fresh Air Supply Ventilation

PVC TT Flat Duct for Under-Floor Fresh Air Supply — Rigid Ribbed Flat Channel

A rigid PVC TT flat duct for under-floor fresh air supply. The internal dividing rib reinforces the flat channel, so the duct resists load from the floor above without collapsing while still keeping a shallow overall height. Each piece is 2 metres and it uses the 145 x 120 x 30 mm section.

Key Features

• Internal dividing rib — reinforced flat section resists floor load
• Rigid PVC construction — dimensionally stable, corrosion-free
• Shallow 30 mm profile — minimal impact on floor build-up
• 2 m per piece — manageable handling in confined spaces
• Multiple sizes — sizes available across the floor supply range

Technical Specifications

Typical Applications

• Under-floor fresh air supply in apartments and villas
• Concealed floor-level distribution layouts
• Projects requiring rigid rather than flexible flat duct

System Matching

Combine with our insulated PVC TT flat duct, floor supply air outlet assembly, ABS distribution box and metal distribution box.

FAQ

Q: Can this flat duct be walked on once installed?
A: The internal rib reinforces the section, but the duct should be installed within the floor build-up in accordance with the design. Confirm load requirements with our team for specific floor constructions.

Q: How long is each piece?
A: 2 metres per piece, as listed in the specification table.

Q: Is there an insulated version?
A: Yes, see the insulated PVC TT flat duct.