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Feature
Back draft damper for insertion into 4 inch ventilation ducts. The backflow damper RKI opens and closes automatically. It has a strong spring and can be installed either horizontally or vertically. The flap is suitable for retrofitting, since it is completely inside the ductA great sealing and fastening of the duct is achieved by the foam strip attached to the outside of the damper.The rubber sheath applied to the damper prevents loud rattling when the flap blades are opened. The housing of the flap is made of galvanized steel, the flap blades are made of aluminum, the axle and spring are made of stainless steel
Designed for use in AC, dryers, exhaust, extractor or range hoods, Heating, Vent and other residential, commercial and industrial HVAC applications
FUNCTIONALITY: Backflow dampers prevent cold air or wind from entering the ventilation pipe. In this case, the flap is installed in such a way that the flap leaves only open into the outgoing air direction. This means that no (cold) air / wind can penetrate the ventilation pipe from the outside.
INSTALLATION; The backflow valve is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation.
Description
- Connection (NW): 4 Inch
- Depth: 2 Inch
- temperature range: -10 bis +60 C
- Material: Galvanized steel
- Surface: Steel
- color: Steel
- Manufacturer: Klimapartner