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Centrifugal fans are designed to be rugged and come with different shapes and designs of the blades. The fans come in a wide range of diameters which may be from 200 mm to 5 meters. The fans are designed to serve different purposes depending on the configuration of the blades.

The centrifugal fans look like paddle wheels and they are also called squirrel cage fans. The air enters the fan through an inlet that is at the center of the wheel. It is turned at 90 degrees and due to the centrifugal force, it moves radially outwards due to the force that is developed between the spinning impeller and the blades. The blades can be concave or convex in design in regard to the direction in which the rotation happens. They can also be straight. Each and every design of the blades produces a distinguishing performance. To come up with the best designs of the centrifugal fans, there should be precise measurements of the air volumes and pressure that need to be displaced in the ventilation system.

For you to get a suitable fan, you will need to search the centrifugal fan catalog provided by the manufacturer. Because most of the people need customized centrifugal fans, it is good if you contact several companies asking them for quotations or inviting them to submit tenders to construct and install the fans. You will need to give the manufacturer all the information concerning the pressures and volumes for you to get a complete and reliable tender.

Most institutions have some restrictions on the level noise levels that can be produced by the fans. It is very necessary to comply with the restrictions. Even for the underground installed fans, the noise needs to be regulated. You may be required to give details of the proposed location of the fans that will go with the given restrictions.

When you submit the tender to the manufacturer to build the custom fans, you will need them to show ways in which the fan will handle all the qualities and concentration pollutants. The fan should have the capability of handling material such as dust, water vapor, gases, and moisture. They must indicate any material that could cause corrosion. In your tender, you can include the preferred material that you want the manufacturer to use in making the blades and the housing assembly. The fan also needs to have a protective coating and you can specify what type you need.

After doing all the groundwork research, you are now in a position to request a suitable fan for your needs. It is also recommended to ask the manufacturer to propose a suitable solution based on the information that you give them. The tender should not be shallow but it needs to be detailed covering all regular aspects such as delivery and installation. You can also include the commissioning of new fans. The manufacturer is to price each item separately.

For the installed fan to run, it will need to have some electrical accessories, transmission devices such as motor together with monitoring devices. You can decide to include them in the tender.

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