Spiral & Round Duct · Straight Runs & Assembly

Straight spiral duct run

Horizontal exposed or concealed run

ConnectionSlip-fit with screws/rivets and sealant or gasketed coupling
SupportBand hanger, cable loop, saddle or trapeze

Before you start

  • Look at the ends of every piece.
  • Spiral crushes in shipping and a crushed end...
  • Stage the needed tools and materials before lifting the section: Band hangers, cable loops or saddles, sealant or gasketed couplings, sheet me....

Tools and materials

Band hangers, cable loops or saddles, sealant or gasketed couplings, sheet me...

Lay it out

  1. Snap or shoot a control line for the run. Round duct shows a wandering lin...

Set and support it

  1. Set and verify the approved supports before the connection is closed. Keep the joint from carrying the weight of the duct or fitting.
  2. Use the approved support method for this condition: Band hanger, cable loop, saddle or trapeze.

Make the connection

  1. 1

    Snap or shoot a control line for the run. Round duct shows a wandering lin...

Check the install

  • Round stays round; no flat spots at the hangers.
  • Every joint fully insert...

Common mistakes

  • Screws bunched on one side. The joint pulls oval and the far side gaps.
  • J...

Stop and ask

Stop for crushed ends, wrong fitting diameter, unsupported heavy fittings or ...