Supply Air Diffuser Cfm

Combination supply return plenum slot diffuser 3 4 slot fixed blade slot with down blow section 2 return slot tbdi 80 adjustable gasket tipped blade plenum slot diffuser.

Supply air diffuser cfm.

If one enters the chart at 1 cfm ft2 5 l s per m2 as is a typical interior air design airflow rate one can see that the optimum half diffuser spacing would be about 10 ft at 350 cfm 3 m at 165 vs. Known cfm calculate fpm based on known cfm known fpm calculate cfm based on known fpm calculate footer. Air flow calculator linear bar grilles. The location is a ceiling and a circular or 4 way pattern is required.

Inches please fill in either cfm cubic feet per minute value or fpm feet per minute value. Supply air diffusers return air diffuser never do this. Other factors that determine the cfm include the type of supply air diffuser you are using. The acceptable cfm airflow from the supply air diffuser depends on the throw and the noise of the supply air diffuser.

If you start by using 100 of the nominal airflow you will end up with high losses in performance acoustical problems and very little or no design flexibility. Ceiling diffuser for this initial discussion of sizing a supply register or diffuser we will narrow the selection criteria to only cfm face velocity and throw which will minimize unnecessary complications. These linear slot diffusers feature fully adjustable aerodynamic pattern controllers fabricated from extruded aluminum and are available in a large selection of frame styles. Registers premium stamped supply and bar type supply registers with a pristine white powder coat finish.

Perpendicular air flows nominal airflow. The sds linear slot diffuser is designed to satisfy architectural applications that require continuous lengths without compromising air distribution performance. 6 15 diffuser accessories 18 air flow data supply air square ceiling diffusers 6 16 one way throw 19 6 17 two way throw 20 6 18 three way throw 21 6 19 four way throw 23 return air square ceiling diffusers 6 20 one way 24 6 21 two way 25 6 22 three way 26 6 23 four way 27 6 0. A diffuser airflow rate is 50 cfm per linear foot 77 4 l s per linear meter of.

Using this as a given the lowest airflow rate. The tms is a square ceiling diffuser that delivers supply air in a true 360º pattern with low pressure drop. A circular ceiling diffuser such as our 16 is one possible. Figure i shows the performance of such a diffuser.

Use the calculator below to quickly and easily determine the grille airflow.