VENTILA 250402 Smell-proof flapper KPK 100

Tight flapper with magnet for 100 mm pipe. The perfectly tight KPK check valve closes tightly in the event of a pressure drop thanks to a permanent magnet. The closing and opening pressure of the flapper can be adjusted using a screw. Designed for direct insertion into the ventilation duct. Ideal for use with a fume hood. Prevents the penetration of unwanted odours - suitable for connecting the hood to a common exhaust shaft in apartment buildings eliminates condensation in the ductwork prevents the penetration of unwanted insects prevents the penetration of cold smoke (e.g. from cigarettes) reduces overhearing noise quick and easy installation in pipes backflow preventer without flapping in the pipe small installation depth