Fresh Air Ventilation Duct Fan 8 Inch 200mm Circular 120V 220V Centrifugal Fan Silence Duct Fan

With many years experience in manufacturing single inlet centrifugal fan, underground ventilation fans, axial flow exhaust fan, we believe that our technical expertise is matched by our production capability, providing our customers with the highest quality products and a first-rate service. As we believe that employees’ hard work and loyalty are the foundation of the company's sustainable growth, we adhere to the management philosophy of being responsible for employees. Our company always aim to provide the customer best products with lowest price. Our company adheres to the development concept of customer demand first, leading the market upgrade, and providing customers with suitable and high-quality products.

High-Pressure Centrifugal Ventilator:

Daily maintenance and common faults of High-Pressure Centrifugal Ventilator

1. Attention items in fan maintenance work:
①The fan can only operate under completely normal conditions.
②If the fan is started after maintenance, it is necessary to pay attention to whether all parts of the fan are normal.
③ Regularly remove impurities such as dust and dirt inside the fan and check the tightness of the belt at any time to prevent the belt from slipping.
④The maintenance of the fan must be carried out when the machine is stopped.
⑤ During the operation of the fan, if any abnormal phenomenon is found, it should be stopped immediately and checked.
⑥ Except that the grease should be replaced after each dismantling and repair, the grease should be replaced every six months under normal circumstances.

2. The main failure of the high-pressure centrifugal ventilator and its causes:
①The fan vibrates violently
a. The casing or the air inlet rubs against the impeller;
b. Loose or deformed impeller rivets;
c. The inlet and outlet pipes of the fan are poorly installed, causing resonance;
d. There is dust and dirt on the blades; the blades are worn; the impeller is deformed; the shaft is bent to make the rotor unbalanced
e. The positions of the two pulleys are not aligned. The coupling is installed incorrectly, and the centers on both sides of the coupling are not aligned; the position of the coupling changes after working for some time; the elastic components of the coupling are too deformed and worn too much.
②The bearing temperature rise is too high
a. The bearing box vibrates violently;
b. Bearing damage or shaft bending;
c. The grease is of poor quality or contains impurities.
d. The bearing is short of oil or the bearing is too oiled.
③The motor current is too large and the temperature rise is too high
a. The inlet and outlet pipes are not closed tightly when starting up;
b. Input voltage is too low or single-phase power failure;
c. The spindle speed exceeds the rated value;
d. The density of the input medium is too large or the temperature is too low.
e. The motor bearing is damaged; the bearing is short of oil or the oil is too much.
f. The system changes, resulting in a larger load on the fan and a larger load on the motor.

Never satisfied with the status quo, strict self-requirements are the driving force for the improvement and development of our company's design and manufacturing level. We are always ready to give back to customers with the highest quality Fresh Air Ventilation Duct Fan 8 Inch 200mm Circular 120V 220V Centrifugal Fan Silence Duct Fan and services. We have developed core competencies in technological innovation, market expansion, corporate culture, and sustainable development. Our factory has always emphasized on technological innovation and research development.