Greenheck Steel Airfoil Blades OFSD-311, Specification Sheet

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12x12
48x12
12x48
24x24
36x36
R
Greenheck Fan Corporation certifies that the
model OFSD-311 shown herein is licensed to bear
the AMCA Seal. The ratings shown are based on
tests and procedures performed in accordance
with AMCA Publication 511 and comply with
the requirements of the AMCA Certified Ratings
Programs. The AMCA Certified Ratings Seal
applies to air performance ratings only.
AMCA 5.3 pressure Drop OFSD-311
5D 6D
5D
D
4 (W) (H)
3.14
Velocity (fpm)
Pressure Drop
(in. wg) Velocity (fpm)
Pressure Drop
(in. wg) Velocity (fpm)
Pressure Drop
(in. wg) Velocity (fpm)
Pressure Drop
(in. wg) Velocity (fpm)
Pressure Drop
(in. wg)
500 0.01 500 0.01 500 0.01 500 0.01 500 0.01
1000 0.06 1000 0.02 1000 0.02 1000 0.02 1000 0.04
1500 0.13 1500 0.06 1500 0.05 1500 0.06 1500 0.10
2000 0.23 2000 0.10 2000 0.09 2000 0.10 2000 0.18
2500 0.37 2500 0.16 2500 0.14 2500 0.16 2500 0.29
3000 0.53 3000 0.23 3000 0.21 3000 0.24 3000 0.42
3500 0.73 3500 0.32 3500 0.29 3500 0.33 3500 0.57
4000 0.95 4000 0.42 4000 0.38 4000 0.43 4000 0.74
24 in. x 24 in. (610mm x 610mm) 36in. x 36 in. (914mm x 914mm) 12in. X 48 in. (305mm x 1219mm) 48 in. x 12 in. (1219mm x 305mm) 12 in. x 12 in. (305mm x 305mm)
*
* Sizes are in inches.