commercial exhaust fans for bathrooms

commercial exhaust fans for bathrooms

Commercial exhaust fans for bathrooms is derived and expanded from YE2-DW series low-noise centrifugal fan, meeting requirements for any air flow and pressure in the design and selection of air-conditioner. The commercial exhaust fans for bathrooms is characterized by low noise, high efficiency, large air flow, low rotation speed, small mass, etc.
Product description

Features of fan:
Commercial exhaust fans for bathrooms is derived and expanded from YE2-DW series low-noise centrifugal fan, meeting requirements for any air flow and pressure in the design and selection of air-conditioner. The commercial exhaust fans for bathrooms is characterized by low noise, high efficiency, large air flow, low rotation speed, small mass, etc. It includes forward type (DKF series) and backward type (DKF(H) series) which are respectively consisted of parts such as forward and backward type impellers, logarithmic spiral casing, circular arc streamline air inlet etc. Adopting fully galvanized plates, it is formed by molding with adjustable frame structure and exchangeable pulley on the right and left, making it the most ideal accessory product for industries of air-conditioner, purification, paint drying room and refrigeration.

Fan structure:
1. The casing of commercial exhaust fans for bathrooms is made by galvanized steel plates with weld-free seam. It is fine in appearance.
2. The forward type impeller is composed of forward multi-blade circular arc blades riveted with front and middle discs. It is made of fine machined galvanized steel plates. The backward type impeller is composed of backward arc blades fixed and welded with front and middle discs by special clamps. In order It is then calibrated through static and dynamic balance after forming, so it is smaller in vibration when in operation, excellent in pneumatic performance, low in noise and stable in operation. All the parts of impeller are formed by one-time stamping in mold to ensure its accuracy, It is then calibrated through static and dynamic balance after forming.
3. High-quality carbon structural steel is used as material of the shaft. During design, the shaft material passed the secondary verification of critical rotation speed to be high in strength, excellent in rigidity and stability.
4. Air inlet is made of mold formed galvanized steel plates. It is mounted on both sides of the fan with curved section parallel to axial direction that makes the smooth air flow and less loss.
5. Imported or domestic renowned premium bearings are used due to their reliable quality, longer service life and stable operation.
6. V-belt is used for transmission to acquire large quantity of working conditions by changing the diameter of belt pulley, so it can fully meet the requirements of air-conditioning fan for air flow and air pressure.

Application:
1. Ventilation in buildings involving industry, civil uses, mining, tunnel, subway, etc.
2. Used along with various forms of air-conditioners and air purifier, etc.
3. Used for ventilation of various kinds of automobile spray booth and drying room, etc.

User notice about product:

1. The medium that the fan propagates is air and gas, non-corrosive, explosion-resistant, and non-sticky. And the dust and hard particulate matter contained in the medium should not exceed 120mg / m

2, the fan model should be selected according to the principle of air flow, air pressure and high efficiency, the technical parameters of the fan such as speed, shaft power and noise should be determined according to air flow and air pressure (total pressure).

3. The bearings for the fans are self-aligning bearings and are mounted in housings with injectors. If the bearing temperature is below 70 ° C, oil is injected every 3000 hours. If the temperature is above 70 ° C, the oil filling interval should be reduced by at least half each time the temperature is raised by 15 ° C.

4. Mounting angle and direction of rotation: The mounting angle is determined by the direction of the fan outlet. Rotating clockwise means that the right side and counterclockwise rotation mean the left side when viewed from the side of the pulley.

5. It is forbidden to use the motor in an open circuit to prevent overcurrent conditions. If the fan is idling and no external load is applied to the pipe at the outlet or inlet, there is a risk of motor burnout. For safety reasons, valves should be installed on the fan outlet or inlet duct. In this way, the valve is closed when the motor is started, and the motor is slowly opened when the motor rotates until the motor reaches the specified working state, and attention is paid to whether the motor current exceeds the specified value.

6. In order to ensure the safe operation of the fan, the user must be equipped with a phase failure protector for the motor during installation.

7. The motor should be well grounded.

8. If the abnormal sound, severe vibration, etc. are issued during the operation of the fan, stop the power supply immediately. The operation cannot be resumed until the fault is rectified.

9. When placing an order, certain parameters of the fan must be indicated, such as model, size, flow, total pressure, speed, exit direction and direction of rotation.

10. If there are any special requirements when placing an order, please specify the special requirements.

11.jpg


Related Products
Feedback

Copyright © Jiangsu Shuangju Fans Co.,Ltd All Rights Reserved.Tel: +86-515-88669968