Flexible Connector

The COM 400/600 is a heat-resistant flexible connector designed for conveying gas–air mixtures at temperatures up to 400 °C or 600 °C for at least 120 minutes.

COM 400/600-VRAN (AF) — connects smoke extraction fans to air ducts or dampers. Used in DU and DUV systems for mounting VRAN-DUV and AF-DU fans as part of dual-use ventilation systems.
COM 420/620-VRAN — designed for explosion-proof fan installation.

The connector consists of a special multilayer flexible sleeve and metal flanges fixed with rivets. Flanges can be made of stainless, galvanized, or carbon steel (St3).
COM–VRAN (OZA/AF) connectors are available in rectangular, square, or round cross-sections.