Axial fan AVD RK

wall-mountedcommercialmetal

■ Types □ HELIOS offer a wide range of products and therefore are able to supply fans for almost any application. □ High efficiency axial fans are available in over 20 standard sizes and include more than 1000 different models; many of which are shewn in this catalogue. □ Closely' matched air flow volume and pressure can be achived on larger fans with a maximum diameter of 7100 mm through adjustable pitch angle. Four standard casing types are avai- lable. ■ Models Shown in this catalogue 1. Wall fan HQ - square plate axial fan with inlet cone Casing made from galvanised steel. Motor with terminal box and motor side guard. 2. Wall fan HW, AVD DK - circular plate axial with inlet cone Casing made from galvanised steel. Motor with terminal box and motor side guard. 3. In wall fan HS Cylindrical duct case with spigot ends For flush, wall or in-line duct installation. Casing made from galvanised steel with circular stiffening rings. 4. Cased axials HRF, AVD RK Cylindrical duct with flanges on both ends For direct in-line installation in ducting. Flanges made to DIN 24155. PT. 3. Casing made from galvanised steel, additional terminal box (IP 55) on outer casing. ■ Motor form □ Depending on the motor specification e.g. protection class, power, fan diameter and installation - motors of the forms B 0. B 5. B 14 or V... are used. ■ Impeller □ Depending on the performance requirements the impellers are made from various materials; see product pages. The standard design is made from reinforced polymers. Other materials, aluminium or steel, are available on special order. □ All impellers feature: - Lew noise characteristics. - High efficiency.