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Air Duct Elbow Loss
Calculation of pressure loss in elbows on ventilation ducts.
Fill in the form below.
Unit system
:
SI
Imperial
System Element
:
Elbow-Round Duct
Elbow-Ruffles
Elbow-Piece
Elbow-Rectangle
Flow rate
:
m³/h
lt/s
Wid.(W)/Heig.(H)
:
25
50
75
100
125
150
175
200
225
250
275
300
350
400
450
500
550
600
650
700
750
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
25
50
75
100
125
150
175
200
225
250
275
300
350
400
450
500
550
600
650
700
750
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
mm
Elbow Angle (θ)
:
20
30
45
60
75
90
110
130
150
180
Radius/Heig.(r/W)
:
0.50
0.75
1.00
1.25
1.50
1.75
2.00
Fluid Temperature
:
°C
Sound insulation
:
No
6 mm
10 mm
15 mm
20 mm
25 mm
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