Some Important Information on Buying a Centrifugal Fan
There are different shapes and designs of centrifugal fan blades that you can choose from and they are made in a way that they should be rugged. You can find some with a diameter of two hundred millimeters to above five meters. One thing that you need to know is that how the blades are configured usually determines how the blade works. In most cases, centrifugal fans look like a paddlewheel and they are known to as a squirrel cage sometimes. What happens is that there is some air that enters next to the center of the wheel and then turns it ninety degrees and it then moves using some force between the blades radically. You can find blades that are curved either in a concave or convex design and that is usually based on the direction that the rotation is moving.
You can also find some that are straight. For each design, there is a different performance. For you to know the right design of centrifugal fan to choose, you need to have accurate measurements of the volumes and pressures of the air which needs to be displaced in the system. It is important for you to search for different fans that have been included in the catalogs of different manufacturers so that you can find the most suitable one for you. You will also need to contact a number of companies and ask them to provide you with quotations because you may require some customization. You may also ask different companies to submit to you some tenders for constructing and installing the type of fan that you need.
It is however important for you to have in mind that you need to provide some additional information like the volumes and pressures so that the tenders that you are given are completed in the right manner. The information provided needs to include the humidities, air densities, temperatures, and barometric pressures. You need to know that there are some restrictions on the amount of noise that should be produced by the fans in most cases. It is necessary for you to comply with all the restrictions that have been set even if you have installed the fans underground since the levels of noise can still be quantified while there. It might be a requirement that you give a plan which shows the location that you are proposing to place the fan as well as the restriction that is needed in the space that will be used.
During the time when you are handing over the request for tender, you need to ensure that you have clearly identified all the concentrations and quantities of the pollutants which will need to be handled by the fan. Such quantities and pollutants include things such as drops of water, gases, and dust water vapor. In case there are any corrosive materials, you should ensure that they have been indicated clearly. It is also a good idea for you to indicate any preference for materials that will be used while manufacturing housing assemblies and impellers.