Manual-electric high-pressure fan

ERVN is a high-pressure manual-electric fan designed for supply and exhaust ventilation in shelters, radiation-protected rooms, shafts, and engineering structures. Operates from the electrical grid or manual drive, ensuring continuous airflow even during power outages — essential for civil protection shelters.

The fan includes three main components:
– fan unit;
– gearbox with manual handle;
– electric motor.

Equipped with a backward-curved impeller for high efficiency and low noise. Housing is made of carbon steel with RAL 7016 powder coating.
Spiral casing is non-rotatable. Standard three-phase single-speed asynchronous motor is included, and the gearbox has an automatic clutch for seamless switching between manual and electric operation.

Can be used in systems with parallel operation of multiple fans.
Operating temperature range: –20° C to +40° C.