Ventilation Duct Flanges

Makro Teknik’s flanges are produced for maximum robustness, tightness and easiness of assembling at air ducts
applications. Galvanised steel in line with TSE 820 standart is used at production. Non liquid, not frozen butyl mastic
for tightness, is injected to suture where duct is placed. At design of 20-25 mm flanges additional measures are taken
to seal. At flange diagram, it is shown connection types, air duct and flanges assembling methods at diagram according to DW 144 – EN 1507 standarts.

◗ Suitable for A, B, C pressure classes.
◗ High butyl mastic addition guarantees C class tightness.
◗ Its corrugated structure provides stability of duct gasket, under high pressure.
◗ It provides ease of installation thanks to rigid structure.
◗ It is produced at different thicknesses and lengths.