The Flatair EPC is a thermally broken glazed-in flap ventilator with an optional selfregulating valve. It is specifically designed for use in sliding windows, doors and conservatories in PVC-U, timber or aluminium.
The self-regulating valve operates automatically with changing airflows to maintain optimum ventilation levels by controlling the size of the ventilation gap.
The inner profile is punched and acts as an integral insect mesh. The co-extruded flap guarantees maximum wind and water tightness up to 20 Pa.

Performance	FlatAir EPC
mm extrusion	360	1000
Airflow at 1 Pa in dm3/s.m (cfr EN 13141-1)	3,9	10,8
Airflow at 2 Pa in m3/h.m (cfr EN 13141-1)	20	55
Equivalent Area in mm2/m (cfr EN 13141-1)	5000	13767
Free Area in mm2	6174	17000
Sound absorption in open position Dne,w in dB (cfr BS EN ISO 717-1)	32,4	28
Sound absorption in closed position Dne,w in dB (cfr BS EN ISO 717-1)	48,2	44
Heat conduction coefficient	U= 3,85 W/m²K, temperature factor (f) = 0,44
Wind- and Watertightness (cfr En 1027 & 2278)	Up to 750 Pa
Rigidity and strength (cfr EN 3360)	Highest class
Load bearing capacity when used as bottom glazing	700 kg/m
Dimensions	Upper glazing	Transom glazing
Glass reduction	90 mm	100 mm
Built-in height	105 mm	115 mm
Glazing thickness	20 / 24 / 28 / 32 mm	20 / 24 / 28 mm
Rebate size	17 mm	17 mm
Finishes
Control	Lever, rod or curved rod
Endcaps	Black, white, cream or grey (except for bottom glazing)
Finishes	F1 silver anodised All RAL colours (also twincolour)