Mechanical Ventilation Air Duct

To ensure effective air renewal in a building, choosing a quality VMC duct and its connecting components is essential. At ExpertByNet, we support the construction and modification of your ventilation systems with a rigorous range. On this page, you will find our flexible PVC ducts from the brand DIFF, as well as a comprehensive offer of rigid galvanized fittings from NATHER to perfectly structure your network.

Flexible PVC VMC ducts (DIFF)

The duct is the main artery of your ventilation system. Depending on the constraints of your site, our catalog offers ducts in diameters of 80mm, 125mm, and 160mm, packaged in a 6-meter roll or a 20-meter reel:

• Flexible PVC duct in roll: The standard and economical solution for classic ventilation layouts (e.g., Ø80mm, Ø125mm, Ø160mm models).
• Insulated flexible PVC duct: Specifically indicated "For sanitary VMC", the addition of insulation around the duct helps limit thermal variations and the risk of condensation inside the duct.

Structuring the network: NATHER Fittings and Accessories

A VMC duct needs to be connected, divided, or balanced to ensure optimal airflows. For diameters ranging from 125mm to 250mm, we provide all the necessary galvanized elements for assembly:

Note for your installation:

Before finalizing your cart, always check the diameter compatibility between your VMC duct and your galvanized parts (look for the mentions D.125, D.160, D.200, D.250 on our sheets). The combination of DIFF and NATHER products guarantees you a coherent and secure assembly for your entire air treatment system.