How can the output of Roots fan be adjusted if it is too large?

How can the output of Roots fan be adjusted if it is too large? Let's talk about, in the process of use, if the air output of the fan is too large, the pressure caused by the main pipe, and ultimately lead to the motor overheating or bad points should be dealt with? For the problem of excessive air volume can be adjusted from two aspects, the following Jiangsu Wei Drum fluid to share with you

1, adjust the speed

The air volume can be adjusted by changing the speed of the host, so that the speed of the host is reduced, the exhaust volume of the fan will be reduced. The adjustment of the host speed can be changed to the host wheel or the motor wheel. Adjust by changing the diameter of the wheel. If it is to adjust the motor wheel, you only need to reduce the diameter of the wheel a little, and the speed of the host will slow down.

2. Add bypass switch

If it is to reduce the air pressure and wind pressure in the pipeline, the user can remove the excess air volume by adding a bypass switch and manually opening the ball valve.

3. Replace the host model

If this problem is encountered in the selection process, you can reduce a model, if the main engine with the 150 model is too large, then you can use the 125 model or 125B model fan. By lowering the model can also change the air volume!

4. Use variable frequency motor

If the user is not convenient to change the size of the pulley, then you can also use a variable frequency motor to change the speed of the machine, so as to control the size of the air volume.