Window axial blowers ВО

Window  blowers  ВО are  designated  for  exhaust  and  supply  ventilation  in  the  premises  of industrial,  public,  residential,  cultural  and  agricultural  purpose,  as  well  as  in  sales  outlets,  repair workshops, etc. Square shell allows to install blower easily into wall and window openings. Supply setincludes shutters for avoiding warm air leakage from the premises when blower is switched off. Blowersare manufactured from galvanized sheet steel. Blower impeller is protected by a galvanized mesh with acell of 25х25 mm, which excludes the possibility of getting the foreign objects into operating area.

Window  axial  blower  ВО can  be  operated  under  moderate  climate  conditions  at  the  ambient temperatures from -40°С to +40°С.

Air may not contain any inclusions, being aggressive to standard quality steels, as well as adhesive abrasive and fibrous materials. Air dustiness should not exceed 100 mg/m3.

Window  blower  ВО consists  of:  shell,  casing,  impeller,  shutters,  motor,  protective  mesh.  Shell consists of plate and diffuser. Impeller consists of a spider with a central hole for shaft and blades; it is mounted on engine shaft. Engine is fastened to the plate by four brackets. To avoid ingress of an outer air and draughts in the premises (when blower is switched off) blower is equipped with shutters, whichare mounted in the casing. When the blower is switched on shutter blades open under the influence of displaced air flow. When the blower is on air is taken from the premises and thrown outside. Air supply is adjusted  by  change  of  a  rate  of  motor  rotation.  For safety  reasons  impeller  is  surrounded  by  the protective mesh.