forcing ventilation fan

Forcing ventilation fans generate positive pressure to deliver fresh, conditioned air into buildings, tunnels, or underground workings. By pushing air inward, they displace stale or contaminated air out through exhaust routes.

Available as axial or centrifugal models, these fans handle flows from 5,000 to 100,000 CFM at pressures up to 5 kPa. Their robust steel or composite housings and precision-balanced impellers ensure stable, low-vibration operation.

Integration with VFDs and environmental sensors—measuring pressure, airflow, and gas levels—enables on-demand operation, matching airflow to occupancy or process needs and reducing energy use by up to 30%. Explosion-proof options are available for hazardous environments.

Applications include tunnel push ventilation, confined-space entry, and building pressurization. Maintenance features such as split-casing and external grease fittings allow rapid service, making forcing ventilation fans a versatile solution for targeted airflow delivery.