Bder Circular Silencers

We are praised for manufacturing and supplying wide range of BDER Circular Silencers from Greater Noida, Uttar Pradesh, India. The BDER sound absorbers are used in round general-ventilation ducts. The maximum air flow through absorbers BDER-30, -40, -44 and -60 is approx. 10 m/s, the recommended flow rate being less than 5 m/s. With baffleequipped absorbers BDER-45 and -61, the maximum air flow before the absorber is 6 m/s (size 031) or 7 m/s (sizes 040 - 063), and the recommended flow rate through the absorber is 3 or 3.5 m/s respectively.