Shield-Shaped HDPE Flat Corrugated Duct, Double-Layer Antibacterial Underfloor Fresh Air Ventilation Pipe for HVAC Ventilation System

Shield-Shaped HDPE Flat Corrugated Duct — Double-Layer Antibacterial Underfloor Duct

A shield-shaped HDPE flat corrugated duct for underfloor fresh air ventilation. The 132 x 52 mm shield-shaped arch-bridge cross-section is a compromise between a round corrugated duct and a flat duct: it fits a shallow floor build-up while keeping a favourable airflow profile. The double-layer wall carries a food-grade antibacterial inner coating, and it is supplied in 40-metre rolls.

Key Features

• Shield-shaped cross-section — arch-bridge profile suits shallow floor build-ups
• Double-layer corrugated wall — strength with flexibility for hand routing
• Food-grade antibacterial inner coating — protects indoor air quality
• 40 m per roll — long runs with minimal joints
• Grey finish — complete matching accessories available

Technical Specifications

Typical Applications

• Underfloor fresh air supply with limited build-up height
• Routes needing the flexibility of corrugated duct in a flat profile
• Projects requiring antibacterial inner surfaces

System Matching

Compatible with our HDPE corrugated flat duct, shield-shaped ABS flat duct, floor supply outlet assembly and ABS distribution box.

FAQ

Q: What does the antibacterial coating do?
A: The food-grade antibacterial inner coating helps protect indoor air quality inside the duct.

Q: How long is a roll?
A: 40 metres per roll, as listed in the specification table.

Q: Is it compatible with standard underfloor fittings?
A: Yes, it works with standard underfloor fresh air duct fittings.