The following duct sizes are based on a fraction drop of 10 inches per 100 feet of lineal duct.
10 inch round duct equivalent.
This can be found by multiplying the two adjacent sides of the rectangular duct.
Other hart cooley mobile tools.
Residential duct sizing guide.
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 π·π 1 55π΄ 0 625 0 250 where.
20 straight starting collar 35 el no.
I need to convert a 3 1 4 x 10 duct to a round for my range hood exhaust.
Equivalent lengths plenum duct fittings no.
27r straight register boot 5 el no.
Choose from our selection of round duct including standard duct and fittings quick disconnect duct and fittings and more.
This equal friction method of duct sizing should be adequate for normal residential furnace heating and air conditioning applications.
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 duct calculator round vs rectangular.
V 2000 cfm 10 inches 1 12 ft inches 12 inches 1 12 ft inches 2400 ft min 12 2 m s the velocity in the the equivalent 12 inch circular duct according the table above is 2589 ft min 13 2 m s.
32 5 sq in but i ve been having a difficult time finding 7 round ducts.
Select a size of square duct that has the same area.
The 6 round is slightly smaller in area than the rectangular duct 28 2 sq in.
Larger volumes or higher static pressures should be dealt with on an individual job basis.
24r 90ΒΊ register boot 30 el no.
In stock and ready to ship.
Friction loss calculator for flexible ducts.
I want to calculate.
Round duct equivalent of 3 1 4 x 10.
Friction loss calculator for sheet metal ducts.
23 offset starting collar 10 el no.
The velocity in the rectangular duct is.
120sc snap collar round 35 el round elbows angles 90ΒΊ elbows 30 el 45ΒΊ angles 10 20 el register boots no.