Helios Ventilatoren KAE 125 Cold smoke cut-off vent

By simply inserting in ventilation pipes ideal for subsequent installation. Plastic ring with double lip seal all around and close-fitting rubber membrane, which opens under or over pressure. Supplied with two diaphragms for different flow speeds. With horizontal flow, the positioning of the bridge, which holds the rubber membrane, must always be perpendicular. Temperature range from -20 to +90 °C.

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