You’ll get all these information from the manufacturers’ manual. It is a must read document. In most cases, it is important to consider both the volume and pressure.
At times, you may decide to purchase a fan with an aim of upgrading it at a later stage. During the initial stages, you’ll operate the fan below its capacity before upgrading it. It is important to specify to the manufacturer such intentions. This is because the supplier will be able to design a machine or supply a machine, which can meet all the load operational requirements.
Both the minimum and the maximum temperatures must be specified. The operational temperature determines the type of material to be used to construct the extractor fan’s impeller. The manufacturer must put into account the density of gas at desired temperatures since this will affect the fan’s performance. The composition of the gas determines the exact material to be used in the construction process.
This should be specified before purchasing the extractor fans. The pollutant concentration should be specified. It will determine the design of the impeller.
In the modern industrial set up, the operation of fans has been automated to increase efficiency and productivity. This may include the type of sensors used and the control program. Factors such as the operating frequency and power may affect crucial factors such as the speed of the extractor fan. This will automatically affect its performance thus, it must be specified.