Fresh air valve 4010

Additional information

Product name	Fresh air valve 4010
Article	4010
Model	AB J G Ljungbergs Metallfabrik E 93 Aeolusventil
Period	about 1935 – 1965
Material	Brass
Plating in stock	Length 380, 520 mm untreated and nickel-plated
Plating with delivery time	Length 352, 408, 464 mm untreated and nickel-plated
Recommended wood screws	Countersunk head 9 x 1" M/MN
Package	1 pc with or without screw
Other	Must be folded fully into the frame or casement. Length = L Ventilation area at full opening = A Capacity at 10Pa and full opening = K (L) 352 mm – (A) 13,3 cm² – (K) 2,9 l/s (L) 380 mm – (A) 14,6 cm² – (K) 3,2 l/s (L) 408 mm – (A) 15,9 cm² – (K) 3,5 l/s (L) 464 mm – (A) 18,5 cm² – (K) 4,1 l/s (L) 520 mm – (A) 21,2 cm² – (K) 4,7 l/s
NOTE	Internal device only. Used together with outer devices that are available on the market.