2. The fan adopts external rotor motor direct drive, the rated voltage of the motor is three-phase 380V, single-phase 220V, the rated frequency is 50Hz, the continuous working system is S1, the protection grade of the motor shell is IP44, the insulation grade is B, the cooling mode is natural cooling ic0041, the service ambient temperature is not higher than 40 ℃, the altitude is not more than 1000m, the relative humidity is less than 90%, and it is installed horizontally. (please specify special requirements)
3. The fan shall be free of corrosive gas; It does not contain acidic, alkaline and combustible gases; Dust particles shall not be greater than 150mg / m3; Use in a gas environment. There are two types of installation: common and other. The common forms are shown in the figure:
4. The products are made of high-quality steel plate plastic sprayed or electro galvanized plate, the parts are molded, and the general assembly line is operated. The main parts are made of advanced processes such as impeller rolling, volute undercut, tox riveting connection and so on.
5. The product is Electromechanical, with reasonable structure, small volume, low noise, high efficiency, long service life, wide application, variable pole multi speed, CCC certification of small power motor, safe and reliable use, etc.
6. Adopt standard high-quality bearings to improve the fault free operation time.
7. The fan is installed with or without seat, omni-directional seat and other special forms of mounting seat, which is easy to adjust and suitable for installation places with different needs.
8. Please indicate the fan model, installation form, whether galvanized plate, whether air outlet flange is configured and special requirements.
9. Other installation forms and special purpose fans can be designed and manufactured according to user requirements.