DUCTWORK AND METHOD FOR INSTALLING SUCH A DUCTWORK AND USE OF SUCH DUCTWORK AND METHOD

摘要

Ductwork for leading at least one pipe through a circular opening in a partitioning wall, the ductwork includes:- a flange member (2), where said flange member has a pipe section (3) with an inner diameter, wherein connected to the pipe section adjacent one end of said pipe is arranged a flange (4), said flange extending radially away from said pipe section (3) in a plane substantially orthogonal to a longitudinal direction of the pipe section, and where one or more apertures (21) are provided through said flange (4); - a gasket (6) dimensioned to be positioned on said flange, where a first aperture (7) is arranged centrally in said gasket, said aperture (7) having a diameter larger than the inner diameter in the pipe section (3), and in use arranged on the flange such that the aperture is superposed the pipe section, and where further one or more second apertures (21') are provided through the gasket (6), such that in use the one or more second apertures (21') may be aligned/superposed with the one or more apertures (21) in the flange (4); - a counter plate (15), which in use is to be positioned on the opposite side of the partitioning as to the flange member (2) and the gasket (6), where the counter plate (15) has a central aperture (16), and where the counter plate (15) in a plane orthogonal to the aperture (16), has a non-circular cross-section, having a minor dimension across the counter plate and a major dimension across the counter plate in a direction different from the minor dimension, and where one or more studs (17) extends from a first surface of the counter plate (15), such that the one or more studs may be inserted through the one or more second apertures (21') in the gasket (6) and the one or more apertures (21) in the flange (4) of the flange member wherein, to improve the stability and tightness of the ductwork, an intermediate plate member (9) is provided, said intermediate plate member (9) being provided with one or more apertures (21''), said apertures (21'') arranged such that the one or more studs (17) in the counter plate (15) may pass through the one or more apertures (21'').