Small-diameter spiral branch

Before you start

• Confirm the branch size and takeoff type against the drawing before you cut t...
• Stage the needed tools and materials before lifting the section: Takeoff fitting, balancing damper, hole cutter, deburring tool, snips, screw ....

Lay it out

1. Measure...

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, strap or cable loop.

Make the connection

1. 1

   Install the takeoff and the balancing damper on the main first.