Gored Vs Pleated Elbows

What gore count/radius does this elbow need here?

I'm checking gored vs pleated elbows at [location]. I found Wrong gore count/radius increases pressure drop or won't fit. What gore count/radius does this elbow need here?

Round, Spiral & Oval Duct 2nd Year BLUE

Stop if

Hold point on gored vs pleated elbows: I have the location, photo, drawing/detail/spec section, and what I checked. Who should verify before this gets cut, drilled, sealed, supported, connected, controlled, or covered?

Watch out

Assume any 90 works in a tight coordination spot

Check

room/grid/area
photo of condition
drawing/detail/spec/submittal
what I already checked
what is blocking progress

Say this to your foreman

14576 gored vs pleated elbows round & spiral duct blue 2 what gore count/radius does this elbow need here? i'm checking gored vs pleated elbows at [location]. i found wrong gore count/radius increases pressure drop or won't fit. what gore count/radius does this elbow need here? gored elbow gored elbow, pleated elbow, number of gores, throat radius