Special axial fans up to 20 m in diameter.
They equip large water cooling towers and large air condensers, in
steel, petro and carb-chemical complexes, as well as in thermoelectric plants.
Large capacity coal, oil, nuclear or gas (combined cycle) power plants
all have in common the need for Water Cooling Towers to condense exhaust vapors
from their turbines, and all towers need these fans.
These fans, due to high static efficiency, have low power consumption.
They are characterized mainly by being very robust, their blades in PRFV
have long useful life without expensive maintenance.
Many of the world's largest thermoelectric power plants are equipped
with the fans of this Alpina fan line.