Concentric air/flue system is designed to convey combustion air from the outside of a building and supply it through chimney ducts. System can be installed internally or externally.
Gas or oil
≤ 200° C
Inner pipe: stainless steel EN 1.4404
Outer pipe: stainless steel EN 1.4301 or painted steel
when dnfrom 80 to 200 mm – 0.5, 0.6, 0.8, 1.0 mm;
when dn from 210 to 400 mm – 0.6, 0.8, 1.0 mm;
P1 – positive pressure
O – not resistant
01 mm
W – designed for wet operating conditions
1397-CPD-0415
EN 14989-2 T200-P1-W-Vm-L50050-O00
EN 14989-2 T200-P1-W-Vm-L50060-O00
EN 14989-2 T200-P1-W-Vm-L50080-O00
EN 14989-2 T200-P1-W-Vm-L50100-O00
1 The actual minimum distance to combustible material from the outer surface of a chimney must be defined according to the designation of the chimney, as described in their marking, and national legal acts. If the legal acts and chimney designation indicate different admissible distances to the combustible materials, it is necessary to follow a bigger distance. Jei teisės aktuose ir koncentrinio dūmtraukio/ortakio žymėjime minėti atstumai skiriasi, tada reikia vadovautis didesniu leistinu atstumu iki degių medžiagų.