10 Inch Round Duct Equivalent

23 offset starting collar 10 el no.

10 inch round duct equivalent.

20 straight starting collar 35 el no. This equal friction method of duct sizing should be adequate for normal residential furnace heating and air conditioning applications. The following duct sizes are based on a fraction drop of 10 inches per 100 feet of lineal duct. 24r 90º register boot 30 el no.

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. The velocity in the rectangular duct is. Larger volumes or higher static pressures should be dealt with on an individual job basis. Equivalent round for rectangular 𝐷𝑒 1 30 0 625 0 250 where.

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. 28r end register boot 50. Friction loss calculator for flexible ducts. 32 5 sq in but i ve been having a difficult time finding 7 round ducts.

Choose from our selection of round duct including standard duct and fittings quick disconnect duct and fittings and more. Other hart cooley mobile tools. Friction loss calculator for sheet metal ducts. The 6 round is slightly smaller in area than the rectangular duct 28 2 sq in.

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. Equivalent lengths plenum duct fittings no. Equivalent duct calculator round vs rectangular. I need to convert a 3 1 4 x 10 duct to a round for my range hood exhaust.

This can be found by multiplying the two adjacent sides of the rectangular duct. I want to calculate. Round duct equivalent of 3 1 4 x 10. 120sc snap collar round 35 el round elbows angles 90º elbows 30 el 45º angles 10 20 el register boots no.

Residential duct sizing guide. In stock and ready to ship.