Square Throat Elbows And Turning Vanes

Does this elbow need turning vanes, and which type?

I'm checking square throat elbows and turning vanes at [location]. I found Missing vanes, wrong single/double vane, noise/pressure. Does this elbow need turning vanes, and which type?

Cutting, Holes, Penetrations & Field Fab 2nd Year YELLOW

Stop if

Hold point on square throat elbows and turning vanes: 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

Add random vanes without the rail set

Check

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

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14584 square throat elbows and turning vanes fittings & transitions yellow 2 does this elbow need turning vanes, and which type? i'm checking square throat elbows and turning vanes at [location]. i found missing vanes, wrong single/double vane, noise/pressure. does this elbow need turning vanes, and which type? turning vanes square throat elbow, turning vanes, vane rail

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