8 Inch Round Duct To Rectangular

D e is the circular equivalent of rectangular duct for equal length fluid resistance and airflow inch a is the length of one side of duct inch b is the length adjacent side of duct inch equivalent round for flat oval 𝐷𝑒 1 55𝐴 0 625 0 250 where.

8 inch round duct to rectangular.

2001 ashrae fundamentals p. Soler and palau 8 inch by 12 inch in line adaptor kit for models ff900 and ff1500. Friction loss calculator for flexible ducts. Select this broan 413 duct accessory when attaching duct to the top or vertical discharge opening on the range hood.

Soler and palau 8 inch round in line adaptor kit for models ff200 ff250 and ff300. The rectangular dimensions and the air flow volume are adapted to the equal friction loss. Equivalent duct calculator round vs rectangular. Design cfm 4 cfm 6 cfm 8 cfm 10 cfm 12 60 6x4 60 4x6 90 4x8 120 4x10 150 4x12 90 8x4 110 6x6 160 6x8 215 6x10 270 6x12 120 10x4 160 8x6 230 8x8 310 8x10 400 8x12 150 12x4 215 10x6 310 10x8 430 10x10 550 10x12 180 14x4 270 12x6 400 12x8 550 12x10 680 12x12 210 16x4 320 14x6 490 14x8 670 14x10 800 14x12 240 18x4 375 16x6 580 16x8 800 16x10 950 16x12 270 20x4 430 18x6 670 18x8 930 18x10 1100.

Equivalent round for rectangular 𝐷𝑒 1 30 0 625 0 250 where. Select an adapter that will convert between the round and the square duct sizes from your local building supply center. Rectangular and round duct rectangular duct height inches title. The table is based on the ducts friction loss formula.

For example our original 8 inch round duct should be mated to the 10 inch by 5 inch rectangular duct because they have the same cross sectional area. Broan 10 to 8 round duct transition with damper. I want to calculate. Air volume equivalent round air volume cfm 4 6 8 10 12 duct inches cfm 50 6 x 4 550 75 6 x 4 675 100 8 x 4 6 x 6 6 100 125 10 x 4 6 x 6 7 125 150 10 x 4 8 x 6 7 150 175 12 x 4 8 x 6 8 175.

Friction loss calculator for sheet metal ducts. The table below can be used to compare equivalent diameters for rectangular and round circular ducts. The equivalent diameter is the diameter of a circular duct or pipe that gives the same pressure loss as an equivalent rectangular duct or pipe. Available in 1 finish.

Rectangular to round conversion de 1 30 ab 0 625 a b 0 250 a length of one side of rectangular duct inch b length of adjacent side of rectangular duct inch de circular equivalent of rectangular duct for equal friction and capacity inch source. It makes the proper transition from 3 1 4 in.