K-Series Cooling Fans
Howden K-Series cooling fans are designed for use in factory assembled cooling towers and air-cooled heat exchangers. This design combines Howden product quality with superior performance, low power consumption and timesaving features.
The Howden K-series fan blades, with the innovative patented "Aerotip" and a radius-cut inboard edge, have been designed for a high power recovery providing excellent aerodynamic performance.
The resilient and damped blade-to-hub connection results in smooth and silent operation without vibration problems.
Design Advantages
- resilient connection of the K-Series fan blades to the hub significantly reduces mechanical vibrations and structure borne noise.
- variable frequency drives (VFDs) can be used at any speed, except at the cooler structure’s natural frequency.
- K-series fan blades are master-balanced; blades can be installed onto the hub in any sequence, without the need to balance the complete fan.
- high efficiency resulting in low power consumption, because of optimal blade shape (determined in the world’s most extensive cooling fan test facility).
- accurate and reliable fan performance data. Our fan selection software contains many years of experience in the field and exhaustive cooling fan know-how.
- no need to re-pitch blades after start-up due to reliable fan software.
- blade pitch angle is factory pre-set to the actual duty point and is adjustable during standstill.
- fan blades are fitted with innovative and patented “Aerotips” for enhanced aerodynamic performance and lower cooler induced vibrations.
- easy fan diameter reduction for out-of-tolerance fan casings.
- fan is packed as one fan per box, containing all components.
Standard Features
- fan diameters range from 1.5 to 4.1m (5 to 16ft). K-series fans are designed for operation in horizontal or vertical position.
- standard operating temperature range from –20 to +120°C (-4 to +248°F)
- extruded aluminium pre-assembled fan blade, shaft and aluminium alloy mounting block. (AVS
)
- high quality carbon steel fan hub to suit the mating drive shaft of the bearing set, gearbox or motor, by means of a taper-lock bushing (straight bore optional).
- standard high-grade corrosion protection of the steel parts using cataphorising (similar to automotive suspension components), and epoxy coating.
Optional Feature
- stainless steel hardware upgrade (stainless steel hardware enables an operating temperature range from –46 to +120oC (–50 to +248oF).