Large-diameter FRP impellers, fan stacks and complete fan units for cooling towers — selected for your duty point.
Impellers from Ø790 to Ø20,000 mm for wet cooling towers and dry coolers, with 3 to 8 blades. Five blade profiles — from the fastest to the ultra-low noise — matched to your airflow, pressure and noise limits.
High speed
Designed for stable impeller operation in the unfavorable flow conditions of concrete and steel casings. Built for high rotational speeds and highly resistant to dynamic loads.
High pressure
A slightly twisted blade for higher flow parameters — in particular a higher pressure rise than profile (1HS). The widest diameter range of all profiles.
Efficient & silent
A properly profiled, highly efficient and silent blade that achieves high flow parameters while keeping the noise level low.
Low noise
Highly efficient, silent blade with a specially profiled shape. Delivers high flow and efficiency at reduced rotational speed — the choice for installations with low noise limits.
Ultra-low noise
Wide, specially profiled and twisted blade for very low noise limits — up to 3 dB(A) quieter than profile (14).
Not sure which profile fits?
We compare every profile, blade count and speed for your conditions and send you an AgniVent datasheet for the best options.
Get a Fan SelectionSpecial executions for demanding operating environments — from high-temperature air to explosion hazard zones.
Adapted for operation at temperatures up to +120 °C.
Acid- and alkali-resistant execution.
Reinforced execution for extremely heavy operating conditions.
Impeller hub elements made of SS304 or SS316 stainless steel.
Self-extinguishing execution.
Antistatic and self-extinguishing execution for operation in ATEX explosion hazard zones.
A fan works only as well as its casing. We supply the FRP parts around the impeller, matched to the impeller model and to the cooling tower.
The fan stack does more than protect the crew from the rotating impeller: it determines power consumption and pressure recovery, and has a significant effect on the efficiency of the whole installation.
Four stack profiles — DW, DK, DC and DD — fit the roofs of different cooling towers. The smooth inner surface keeps the blade-tip gap constant for vibration-free operation and lower energy use.
For wet cooling towers and dry coolers. Wet towers expose the casing to an aggressive cooling medium, dry coolers to much hotter air — fan rings and inlet bells are designed for both, while giving the impeller ideal inflow conditions.
Impeller, fan stack and drive supplied as one matched unit. Selecting the stack together with the impeller avoids a complete fan that does not work optimally — a common result when the two come from unrelated suppliers.
Hatches (standard pull-out or premium with hinged doors) give access for maintenance without dismantling the stack segment.
We analyze existing FRP fan configurations and operating conditions to develop technically suitable replacement, retrofit and improvement proposals.
A new impeller is selected for the real duty point of your tower. When the fan stack is replaced as well, its profile is adapted to the existing cooling tower roof — with only a short measurement on site.
Carefully finished blades reach the highest flow parameters, collect fewer deposits and are easier to keep clean. The protective surface prevents erosion and extends service life.
Manufactured entirely in the European Union from certified materials, to the strictest standards.
FRP allows any blade surface shape. Compared with aluminum it is unrivaled for wet cooling towers — long service life, and minor damage can be repaired on site.
Packed to a dedicated transport standard. Special crates for sea freight and IPPC packing on request.
Fill in what you know — we run the selection in our fan selection software and reply with an AgniVent datasheet: model, blade angle, speed, power, efficiency, noise and performance curves.
New installation or replacement of an existing fan — send us your operating data and we will propose the right impeller, fan stack or complete fan unit.
