The regulation dampers (DIN 1946/4) are used in ventilation systems for the exclusion of particular areas.

Technical data

• Frame in galvanised steel sheet Z275, 1,5mm thick
• Tubular blades with special profile for the insertion of the internal frame also in galvanised steel sheet but 0,8+0,8mm thick
• Blade weight 200 mm
• External hinges for the damper regulation
• Bronze ringlets
• Command hinge ø18 mm
• Lateral fixing with stainless steel blades on each large blade
• Pressure loss test done following ISO 7244 regulations at the Giordano Institute (Test report N.136363)
• Generated noise levels test done following UNI EN 25135 regulations carried out at the Giordano Institute (Test report N.148829)
• Closing/Cut off Test DIN 1946/4 done again at the Giordano Institute (Test report N.147646)