Further information for Helios Ventilatoren 2596 RVS 400 pipe shutter valve self-actuating
RVS 4 Tube shutter automatically to prevent cold air from entering when the fan is. Automatic opening at start of the fan. Cylindrical steel housing with flanges on both sides. Screwed directly to the fan base and the flange. Porting pattern to DIN 24
55thFold aluminum, low-noise operation through plastic buffer stops. Make: Helios No.: 2596 Type: RVS 4 ______________________________________