The BIFA Three Phase 4 Pole 22-degree 630mm bifurcated axial fan is designed for reliable and efficient performance in commercial ventilation systems. Available in sizes from 250mm to 1000mm diameter, it incorporates an IP55-protected motor with Class ‘F’ insulation, ensuring durability and safety in demanding environments. This unit is capable of operating in ambient air temperatures up to 200°C and offers speed control through either a transformer or inverter, provided the ambient air temperature does not exceed 60°C. The IP55-rated terminal box further enhances protection and reliability. Suitable for use in relative humidity levels of up to 95% RH, the fan is built to withstand challenging conditions. Manufactured to BS EN ISO 9001:2015 standards and performance tested to BS 848 parts 1 and 2 as well as ISO 5801, the BIFA633422 ensures consistent, tested performance. Backed by a 2‑year guarantee, it provides a robust and dependable solution for commercial ventilation needs.