1. Composite impellers are designed for installation in air-cooled apparatus (ACE) or fan cooling towers (FC).
Their operation is to move the gas medium by aerodynamic impact of the impeller blades as they rotate.
1.1 Composition of the impeller
The impeller consists of a collapsible metal hub, a fibreglass disc and volumetric fibreglass blades made by injection moulding with thermal polymerisation.
1.2 Technical characteristics of impellers
Impellers are manufactured in diameters from 0.4m to 10.4m. The number of blades in the impeller can be 2, 3, 4, 6, 8, 12 pieces.
Impellers can be manufactured in M1, M2 and M3 modifications.
Modification M1 means impeller with combined hub (plastic disc + metal hub).
Modification M2 means an impeller with a metal hub of reduced dimensions and a removable plastic disc.
Modification M3 designates an impeller with a metal...
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