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1. Summary of SWF type mixed flow fan
1.1. The SWF type mixed flow fan is with the method of accelerating the meridian surface. Its impeller shaft is conical, and the housing is specially designed to effectively reduce the noise of external flow. Under the condition unit air volume and unit air pressure, the A sound level can be reduced by 2-3dB (A). At the same time, a higher fan pressure can be at a lower speed, which can replace the low-pressure centrifugal fan.
1.2. The fan is divided into eighteen specifications according to the model number, from 250-1400mm. The series air volume is 500-110000m3/h, and the full pressure 50~1400Pa. The fan can be divided into single speed (Type 1) and double speed (Type) according to the speed regulation method. double-speed fan can meet the needs of users for performance regulation at different working conditions. It is equipped with a double-speed motor to achieve two-gear speed regulation. The can also be equipped with a variable frequency motor and a variable frequency controller to achieve stepless speed regulation. It is recommended to adjust the frequency lock at 25Hz-5Hz.
1.3. To meet the needs of explosion-proof environment, the fan can be made into an explosion-proof fan, and the explosion-proof grade EXDIIBT4.
1.4. To meet the noise requirements of different places, the fan can be equipped with a silencer of different lengths, or the can be made into an enclosed type.
2. Working conditions of SWF type mixed flow fan
Working temperature: -20~ 40C; Hum: 〈90%;
Medium condition: air (dust content not exceeding 100mg/m3); Working power supply: three-phase,380V/50Hz.
3. Application of SWF type mixed flow fan
The fan can be widely used in civil buildings, industrial and mining, hotels, restaurants, museums, gymnasiums, etc. for ventilation and air exchange. It is most suitable for pipeline pressurization, air supply and exhaust, and and air exchange of high-rise buildings and general buildings.
4. Configuration of SWF type mixed flow fan
4.1. Standard configuration
Impeller Motor; Housing; Foot.
4.2. Optional parts and accessories (please indicate whether to purchase when ordering) Vibration-proof equipment; Control box; M cover; Flange for butt joint.
5. Processing technology of SWF type mixed flow fan
5.1. The fan impeller is made of steel. shaft of the impeller is hydraulically stretched and formed, and the blades are stamped and then hydraulically formed. The blades and the impeller shaft are welded and. The impeller is corrected for static and dynamic balance, and the balance accuracy is not greater than G5.6 grade.
5.2 The flange of the cylinder is formed by integral turning and spinning.
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