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METAL INDUSTRIES
Box Type & Model
Inlet Size (in.)
CFM @ 1"
Area
K (Box Constant)
All models: 400th Series
6" Round
580
0.20
1.91
8" Round
980
0.35
2.10
10" Round
1540
0.53
1.89
90 deg travel, either direction to close
12" Round
2000
0.77
2.38
14" Round
2590
0.96
2.20
16" Round
3200
1.18
2.18
PRICE INDUSTRIES
Box Type & Model
Inlet Size (in.)
CFM @ 1"
Area
K (Box Constant)
4" Round
315
0.09
1.31
Single Duct Cooling Only: SDV5000/8000
5" Round
450
0.14
1.55
6" Round
570
0.20
1.97
Fan Powered Series Fan: FDC5000/8000
7" Round
790
0.27
1.87
8" Round
1025
0.35
1.87
Fan Powered Parallel Fan: FDV5000/8000
9" Round
1325
0.44
1.78
10" Round
1650
0.55
1.78
Dual Duct: DDV5000/8000
12" Round
2450
0.79
1.67
14" Round
3500
1.07
1.50
16" Round
4600
1.40
1.50
90 deg travel, counter clockwise to close
24 x 16
8600
2.67
1.54
REDD-I
Box Type & Model
Inlet Size (in.)
CFM @ 1"
Area
K (Box Constant)
6" Round
518
0.20
2.39
All Box Types
8" Round
824
0.35
2.89
10" Round
1276
0.55
2.98
12" Round
1895
0.79
2.79
45 deg travel, either direction to close
14" Round
2630
1.07
2.65
16" Round
3540
1.40
2.51
