Roof fan for continuous operation at high temperatures, particularly recommended as extractors from above the grate, from the hood in the meat industry and gastronomy. It is also used in exhaust ventilation, warehouse, shop and industrial halls, agricultural buildings. For the extraction of steam and fog with fatty impurities, vertical ejectors are particularly recommended, and for the smoke extraction from the fireplace in models 140-225.

Construction

• impeller made of galvanized steel (models 140-400)
• painted steel plate impeller (models 450-710)
• dynamically balanced rotor
• impellers made of double-coated steel sheet - cataphoretic paint and polyester (HP series models)
• aluminum sheet housing
• base made of galvanized steel sheet
• integrated silencers at the fan outlet (models in the acoustic version - INS)
• protective mesh (all models)

Electric engine

• 230 V / 50 Hz single phase motor
• 400 V / 50 Hz three phase motor
• motor protection class IP55, insulation class F
• maintenance-free ball bearings
• adjustable speed by changing the voltage (models 140-400)
  
• frequency converter control (other models)

When adjusting the speed of rotation, the electrical installation should be equipped with safety devices ensuring that the fan operates at maximum speed during a fire.

Technical data

* measured at a distance of 3 m from the fan

dimensions