Doby 45 Ductwork Jointing Profile
New from Doby Verrolec is the Doby 45 flange profile. The 45 is suitable for applications with duct gauges that are no greater than 2mm thick or lighter than 0.2mm. J ratings up to J6 in all four pressure classes (with a central tie bar for B,C & D classes).
During the manufacturing process the sealant pocket is rolled into the profile and airtightness is ensured by the inclusion of a non-toxic sealant. The corner is formed to enable the duct to pass into the integral sealant during fabrication.
All rectangular ductwork cross joints are the Doby slide on flange type complete with captive sealant pocket with integral permanently flexible non-toxic sealant, consisting of a Galvanised MS Profile and EZP Corner Pieces. When fitting use an appropriate size of flange to the ductwork as covered by the construction tables 2 to 4 of specification DW144. Independently tested to the procedures of BSRIA in accordance with HVCA specification DW/TM1 and as manufactured by Doby Verrolec. The flanges should be fitted to the ductwork and assembled on site with the appropriate gasket all to the manufacturers instructions.