Diffuser Grille Sizing: linear_slot_2in
Supply diffuser and return grille performance data — CFM range, throw distance to 50 fpm, NC ratings, face velocity, and static pressure drop by diffuser type and neck size
| diffuser type | neck size in | NC rating (NC) | cfm max (cfm) | cfm min (cfm) | face velocity fpm (fpm) | notes | static pressure drop inwg (inWG) | throw 50fpm ft (ft) |
|---|---|---|---|---|---|---|---|---|
| linear_slot_2in | 4ft | 28 | 350 | 150 | 450 | 2-slot (2-in wide total) linear diffuser 4-ft length; higher flow capacity; commercial office VAV terminal common type | 0.04 | 10 |
| linear_slot_2in | 6ft | 30 | 500 | 225 | 460 | 2-slot 6-ft length; zone supply for open plan offices | 0.05 | 12 |
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