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DUCT ELBOWS
ELBOWS FOR DUCTWORK

Duct Elbows

 

 

The Kirk & Blum one-piece duct elbow is fabricated from a single piece of galvanized sheet steel formed by a special machine. Centerline radius is either 1 1/2 or 2 1/2 times the elbow diameter. (Except 13" thru 15" on LR: CLR = 2xDIA.) The duct elbow is not airtight.

duct elbows

 

 

DIA. GAUGE SHORT RADIUS LONG RADIUS
45 60 90 CLR 45 60 90 CLR
Wt. Lbs. Wt. Lbs. Wt. Lbs. Wt. Lbs. Wt. Lbs. Wt. Lbs.
3 22 0.6 0.8 1.0 4 1/2" 0.7 1.0 1.4 7 1/2"
4 22 1.3 1.6 2.2 6" 1.6 2.0 2.8 10"
5 22 1.7 2.1 3.0 7 1/2" 2.1 2.7 4.0 12 1/2"
6 22 2.4 4.1 4.1 9" 3.0 4.0 5.8 15"
7 22 3.3 5.0 5.5 10 1/2" 4.1 5.3 7.7 17 1/2"
8 22 3.6 5.8 6.7 12" 5.8 6.3 9.4 20"
9 20 6.6 8.4 11.4 13 1/2" 8.4 10.9 15.6 22 1/2"
10 20 7.9 10.0 13.5 15" 9.9 12.9 18.3 25"
11 20 10.1 12.0 16.7 16 1/2" 12.4 15.1 22.8 27 1/2"
12 20 11.5 13.5 19.6 18" 14.5 17.6 27.0 30"
13 20 13.9 17.8 22.8 19 1/2" 15.1 20.7 28.5 26"
14 20 15.0 19.7 25.9 21" 16.8 22.2 30.5 28"
15 20 17.4 24.6 31.3 22 1/2" 19.6 26.8 35.7 30"

 

Welded Elbow Ducts - Air Tight

This duct elbow is the same as the duct elbows above, except it is welded on the back to make it AIR-TIGHT. Size range is the same. (Except 13" thru 15" on LR: CLR= 2xDIA.)

 

 

DIA. GAUGE SHORT RADIUS LONG RADIUS
45° 60° 90° CLR 45° 60° 90° CLR
Wt. Lbs. Wt. Lbs. Wt. Lbs. Wt. Lbs. Wt. Lbs. Wt. Lbs.
3 22 0.6 0.8 1.0 4 1/2" 0.7 1.0 1.4 7 1/2"
4 22 1.3 1.6 2.2 6" 1.6 2.0 2.8 10"
5 22 1.7 2.1 3.0 7 1/2" 2.1 2.7 4.0 12 1/2"
6 22 2.4 4.1 4.1 9" 3.0 4.0 5.8 15"
7 22 3.3 5.0 5.5 10 1/2" 4.1 5.3 7.7 17 1/2"
8 22 3.6 5.8 6.7 12" 5.8 6.3 9.4 20"
9 20 6.6 8.4 11.4 13 1/2" 8.4 10.9 15.6 22 1/2"
10 20 7.9 10.0 13.5 15" 9.9 12.9 18.3 25"
11 20 10.1 12.0 16.7 16 1/2" 12.4 15.1 22.8 27 1/2"
12 20 11.5 13.5 19.6 18" 14.5 17.6 27.0 30"
13 20 13.9 17.8 22.8 19 1/2" 15.1 20.7 28.5 26"
14 20 15.0 19.7 25.9 21" 16.8 22.2 30.5 28"
15 20 17.4 24.6 31.3 22 1/2" 19.6 26.8 35.7 30"

 

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