35
K21M
Elbow 90° -
Ø 80 / 125 mm
Item No.: 7746
Description: An elbow for changing the Ø 80/125 mm
concentric air supply/flue tube route direction by 90°
Please note: When connecting two elbows in a sequen-
ce without a 0.5 m stabilisation section, 1,5 Em pressu-
re loss must be allowed for each elbow.
Subassembly parts:
1 × 90° elbow
1 × Ø 80 mm sealing ring
1 × Ø 125 mm sealing ring
Pressure loss: 1 E
Description: The subassembly is designed for vertical
termination (on roof) of an Ø 80/125 mm concentric air
supply/fl ue tube route. For passage through the roof,
use the roof tile manufacturer’s roof passage transition
piece. The subassembly must be complemented with
an RM12M adapter for sealing the outside intake
tube.
Subassembly’s content:
1 × exhaust tube Ø 80 mm
1 × intake tube Ø 125 mm
Overall length: 1.2 m
Pressure loss: 1.5 Em
S21M
Chimney subassembly Ø 80/125 mm
Item No.: 7747
Description: A roof passage flushing piece with continuous-
ly adjustable pitch angle (25 - 45°) and a shaped lead pipe
grip. The piece is designed for sealing a transition between
the S21M chimney subassembly and the roof tile.
Subassembly parts:
1 × roof passage transition piece (25° – 45°)
PS4
Roof bushing piece 25° - 45°
Item No.: 7754