What's the right torque or feel for tightening bolts on a TDC/TDF connection?
Tighten them until the corner gaskets are uniformly compressed and the metal corners meet securely. Do not over-torque with an impact gun until you warp or bend the duct flange out of shape. If you bend the flange, you create a massive air leak path that mastic cannot easily fix.
['Tighten them until the corner gaskets are uniformly compressed and the metal corners meet securely. Do not over-torque with an impact gun until you warp or bend the duct flange out of shape. If you bend the flange, you create a massive air leak path that mastic cannot easily fix.']
Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.
Check
Tighten them until the corner gaskets are uniformly compressed and the metal corners meet securely. Do not over-torque with an impact gun until you warp or bend the duct flange out of shape. If you bend the flange, you create a massive air leak path that
Steps
Stop and verify the approved detail, manufacturer instructions, foreman direction, and project specs before touching it.
Tighten them until the corner gaskets are uniformly compressed and the metal corners meet securely. Do not over-torque with an impact gun until you warp or bend the duct flange out...
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what's the right torque or feel for tightening bolts on a tdc/tdf connection?