The RVK extractor fan series is designed for installation in ducts. The casing is manufactured from PA6 fibreglass reinforced plastic which gives the fan a less leckage casing. Duct connected wet room applications of the fan are possible due to the air tight casing and the IP 44 rated terminal box.The fans have backward-curved blades and external rotor motors. The FK mounting clamp facilitates easy installation and removal, and prevents the transfer of vibration to the duct. The fans can be speed-controlled via a stepless thyristor or a 5-step transformer. The RVK extractor fans have integral thermal contacts with automatic reset.
