Flap valves are an aesthetical covering of the ventilation ducts air-holes and outlets of air – heating systems. Special rotating plate allows to regulate the amount of air flow.
Easy-Mounting system consists of: placing frame into the air hole in a solid way and screwing the flap valve into it. Flexible ducts can be easily connected to the frame.

DARCO offers:

Air supply flap valve – covering the air-supply holes

Air exhaust flap valve – covering the exhaust ventilation air holes

Air supply/exhaust flap valve – air supply/exhaust, made with stainless steel

Mounting frame – allows to place the flap valve in celling (always included with the valve)

Usage:

KY-type flanges in Hot Air Distribution System are used to  adjust the amount of air supplied to the rooms. They are to be mounted in frames of shield grates (rectangular flanges) or inside inlet cassettes (round flanges). Adjustment is done by breaking out proper amount of shutters. Thanks to this it is possible to balance the airflow coming to all rooms.

Inlet cassettes allow to connect shield grates with flexible pipes. It is made of galvanised steel sheet.

Usage