Centrifugal fan designed for air extraction or supply in commercial or residential spaces. Intended for direct installation in circular ducting, in any position. Product in stock.
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Fans & ventilation units | Morgui
Systemair K Circular Duct Fans
In-line fan
Direct-driven fan
backward curved centrifugal fan impeller
IP55 Protection
In-line fan for easy installation in circular ductwork, providing great flexibility for your ventilation project.
Main features
The unit’s airtight casing and corrosion resistance permits outdoor and indoor use. The combination of reliable casing and motor construction ensures, to minimise the need for maintenance of the fans and allows long continuous operation.
Sound-optimised radial impeller together with highly efficient external rotor motor are designed to ensure high-level performance to minimise power consumption and maximise efficiency.
Construction
Casing made of galvanised sheet steel, corrosion class C3 is fully air tight class C according to EN1751. The fans are equipped with an external terminal box with protection class IP55.
Impeller
K fans use backward curved radial impellers. These are from lightweight, hard-wearing fiberglass reinforced polyamide, dynamically balanced and paired with corresponding external rotor motors.
Motor
Depending on type, K fans are equipped with AC or high efficient EC external rotor motors. All motors are suitable for 50Hz and 60Hz.
Motor protection
Fans with AC motors have integrated thermal protection with manual (electrical) reset. Size 100 and 125 has an impedance motor protection. Fans with EC motors have an integrated electronic thermal protection including locked-rotor protection and soft-start.
Control
EC motor with built-in potentiometer to adjust working point can be also controlled by external signal 0-10V. AC motor can be controlled by 5-step or stepless speed regulator.
Installation
K fans can be installed in any position indoor and outdoor by included mounting brackets. All models have a spigot with 25 mm length which is perfectly designed to connect circular duct by fast clamps preventing vibration to the duct. Installation can be combined with filter boxes, sound attenuators, and other mechanical accessories from recommended list.
Certifications
-Ecodesign (ErP) compliant -Eco Platform: EPD Verified -AMCA Worldwide Certified Ratings: Sound and Air Performance -Byggvarubedömningen
Diameter 100
Diameter 125
Diameter 160
Diameter 200
Diameter 250
Diameter 315
