Purpose
The inlet cone should be installed upstream of the fan to improve the air flow parameters. However, it becomes a must in the absence of ducting attached to the fan inlet. The inlet cone helps reduce the fan dynamic pressure and increase the static component of the total fan pressure. The unit can be used in combination with the SZ-VPVO protective mesh which must be one size larger than the unit.
Design
The unit has two flanges and is made of steel with a polymer coating.