Blower.
Centrifugal fans and blowers, axial fans, and roof ventilators.
Capacity ------------------------------------ up to 4000 cmm Pressure ------------------------------------- up to 200 mmaq Inlet size --------------------------------- 300 up to 2000 mm Casing thickness -------------------------- 1, 5 up to 16 mm Impeller types ------------------ ac, as (adjustable pitch) Motor frame size ------------------------------- 63 up to 315 - electricity supply ; single or three-phase to suit a wide range of voltages and frequencies - motors maker ; korea & overseas ex e, ex d Drive type ----------------- coupling-, belt- or direct drive Casing form? combined casing, swing out shot casing Surface treatment --- primer, finish, hot-dip galvanized Material -impeller --------- cast aluminium, engineering plastic -casing -------------- steel , aluminium, stainlesssteel Thermal & ip protection