Farm building air inlet ZAflow

for ventilation

Overview
ZAflow uses a hexagonal honeycomb-inspired structure to guide and conduct incoming air into the impeller of centrifugal fans. The geometry minimizes airflow blockage while improving uniformity of the inflow, making it suitable for confined installation spaces where direct airflow to the impeller is obstructed.

Product specification
Centrifugal fans are more sensitive to disturbances on the suction side than on the pressure side. ZAflow improves the inflow to the impeller in constrained installation conditions, which can reduce overall noise emissions. Field measurements indicate typical reductions of total sound level by approximately 3–6 dB when ZAflow is effective. If no measurable improvement occurs, the existing installation is likely already adequate and ZAflow is not required. When advantageous, ZAflow can be mounted quickly and handled without special tools, providing a fast retrofit solution for flow optimisation.

Properties & special features

• Reduction of noise level by improving the inflow of the fan in confined installation situations
• ZAflow S fulfils the contact protection requirements in accordance with DIN EN ISO 13857 Table 4 (does not apply to ZAflow M)
• Can be easily retrofitted into existing systems

Characteristics / technical specifications

• Design: hexagonal / honeycomb-inspired structure adapted for minimal airflow blockage and improved conduction of inflow
• Function: improves inflow to the impeller for centrifugal fans, particularly in confined installation spaces
• Acoustic improvement: typical total sound level improvement of approx. 3–6 dB in suitable installations
• Compatibility: available in sizes (multiple variants shown for different fan sizes); ZAflow S and ZAflow M variants noted (contact protection applies to S variant only)
• Installation: easy assembly; suitable for retrofitting existing fans
• Intended use: suction-side inflow optimization for centrifugal fans to reduce noise and improve performance