Rectangular & TDC · Transitions & Reducers
Rectangular-to-round transition
Mixed shape — Equipment/branch connection
ConnectionTDC/TDF to slip/gasketed round
SupportIndependent support
How to install it
- 1
Verify round collar clock and rectangular orientation
- 2
support transition
- 3
connect rectangular flange
- 4
align round centerline
- 5
connect round duct
- 6
seal both systems.
Quality check
- Transition square
- round end concentric
- no necking or twist
Stop and verify
Stop if field opening/collar size mismatches