Further information for Helios Apparatebau SSD200/225 - Helios socket sound Dämpfwert 15dB roof fans
SSD 2/225 base suction muffler to reduce noise. Average attenuation is
5 dB. All metal parts made ​​of galvanized sheet steel. For mounting on flat roofs. With hinged to fold down the Venti-lators for audit purposes. Foam core with a clear section enables access to Rohr-/Schachtsystem. Base plate with threaded sockets to DIN 24
55th Make: Helios No.: 529 Type: SSD 2/225 ______________________________________