Fume Exhaust | FH, FHL Introduction
The PennBarry FH fans are designed to meet the various requirements for fume exhaust systems. PennBarry’s exclusive discharge venturi design allows the selection of the discharge velocity to meet the code requirements for high velocity discharge to atmosphere. Discharge velocities from 1250 FPM to 4000 FPM can be obtained by fan selection as required for the particular application. To obtain the required discharge velocity it is necessary to accelerate the air flow from the fan outlet velocity up to the required discharge velocity. Some static pressure will be required to accelerate the air which will need to be added to the system pressure requirements in order to determine the fan performance requirements. The PennBarry FH Series fans accomplish the required acceleration with a minimum pressure loss.