- Country of manufactureChina
Fan axial 250F diameter 250
Exhaust and forced-air and exhaust systems of ventilation of rooms of different function where high efficiency at rather low resistance of system is required. Also there is an opportunity to use to refrigerating equipment for cooling of compressor and condenser blocks.
The case and krylchatka are manufactured of steel with a polymeric covering. The fan of a series has an external terminal box on the fan case.
Depending on model are used two - or quadripolar asynchronous engines in one - or three-phase execution with an external rotor and equipped with the built-in thermal protection with automatic restart. Application in engines of rolling bearings provides the big term of operation to (40 000 hours). The engine in the fan has a class of protection of IP 44.
Adjustment of speed
Smooth or step adjustment is carried out by means of the thyristor or autotransformer regulator. Several fans provided that the general power and working current will not exceed nominal parameters of the regulator can be connected to one control device at once.
The fan of a series is installed to the canal by means of connecting flanges. Giving of food on the fan is carried out through a portable terminal box.
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