Industrial Duct

Technic engineers ,Ducts are pre-fabricated and longitudinally pre-assembled to a maximum length of 1.2m at the workshop as per the construction schedule enclosed. Preparation/formation of flanges for transverse joints are made at workshop.
Ducts received at site as above shall be joined together on the floor, to form manageable lengths.
Wherever branch take-off collars are to be fixed, suitable cut out shall be made in the ducts. The size of cut out shall be equal to the duct cross sectional area and secured using aluminium pop rivets and the joint between collar flange and duct surface shall be sealed with approved duct sealant.
Wherever flexible ducts are to be fixed, a suitable diameter prefabricated collar shall be fixed to the main duct-using dovetail joining system. A sample of the same will be made at site for approval prior to proceeding with installation.
Pre-insulated Ducting