Air actuated damper

Details Air actuated damper Air actuated damper

F - Mech Eng,Light,Heat,Weapons

23

L

F23L 13/00 (2006.01) F23L 13/02 (2006.01)

Patent

CA 2055780

ABSTRACT OF THE DISCLOSURE An improved air actuated damper device (10, 30) is described. The damper comprises a cylindrical conduit (11, 31) that can be joined to a flue pipe (17) at a proximal end (11b, 31b) of the damper device; a damper support beam (13, 33) across the conduit offset above a longitudinal axis (a-a, c-c) of the conduit; and a damper blade (15, 35) that pivots on a pivot axis (b-b, e-e), The damper blade is comprised of an upper section (15a, 35a) and a lower section (15b, 35b) so that the damper blade pivots on the pivot axis and opens when gas flows through the conduit and closes to seal against sealing lips (11e, 31e) and (11f, 31f) extending from and into the conduit when there is no gas flow. The device provides reliable dampering for the flue gas exhaust of a furnace.

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