Pressure Drop

Pressure drop is the measurement of the pressure differential from one side of a louver to the opposite side. Pressure drop is used to measure the resistance to airflow across an open louver. Pressure drop is important in the sizing and performance of louvers.

It is usually expressed in inches of water at specified velocity. Louvers in this search are organized from the highest to lowest static pressure independent of model type pressures. Louvers in this search are organized from the most effective rain defense louver to the least.

CS Louvers for Pressure Drop

The criteria below have been calculated using a standard size louver and will change depending on your louver size. For custom louver data using your design criteriat please select AirflowTool from the customize column below.

Model Category Customize Depth Free Area Rain Defense Static Pressure
RS-5605 Storm Resistant Louvers
Airflow Tool 5 59.13% 99% @ 1471 FPM (50mph & 8 in/hr)
0.08 @ 900 FPM
RSH-5700 Storm Resistant Louvers
Airflow Tool 5 45.80% 99% @ 1514 FPM (29.1mph & 3 in/hr)
95% @ 1563 FPM (50mph & 8 in/hr)
0.01 oz. @ 1169FPM
0.13 @ 900 FPM
RSV-5700 Storm Resistant Louvers
Airflow Tool 5 45.80% 99% @ 1956 FPM (29.1mph & 3 in/hr)
99% @ 1698 FPM (50mph & 8 in/hr)
0.13 @ 900 FPM
RS-7705 Storm Resistant Louvers
Airflow Tool 7 50.00% 99% @ 871 FPM (29.1mph & 3 in/hr)
0.23 @ 900 FPM
RS-2300 Storm Resistant Louvers
Drainable
Airflow Tool 2 41.90% 99% @ 449 FPM (29.1mph & 3 in/hr)
0.13 @ 449 FPM
RS-4600 Storm Resistant Louvers
Airflow Tool 4 43.00% 99% @ 1262 FPM (29.1mph & 3 in/hr)
0.44 @ 900 FPM
RS-4605 Storm Resistant Louvers
Airflow Tool 4 53.30% 99% @ 1142 FPM (29.1mph & 3 in/hr)
0.25 @ 900 FPM
RS-4700 Storm Resistant Louvers
Airflow Tool 4 51.60% 99% @ 1049 FPM (29.1 mph & 3 in/hr)
99% @ 507 FPM (50mph & 8 in/hr)
0.01 oz. @ 1250 FPM
0.37 @ 1050 FPM
RS-5300 Storm Resistant Louvers
Airflow Tool 5 47.30% 99% @ 542 FPM (29.1 mph & 3 in/hr)
0.32 @ 900 FPM
RS-7315 Storm Resistant Louvers
Airflow Tool 7 50.50% 99% @ 567 FPM (29.1mph & 3 in/hr)
0.32 @ 900 FPM
RS-8615 Storm Resistant Louvers
Airflow Tool 8 53.30% 99% @ 1300 FPM (29.1mph & 3 in/hr)
0.37 @ 900 FPM
RS-9615 Storm Resistant Louvers
Airflow Tool 9 59.13% 99% @ 1490 FPM (50 mph & 8 in/hr)
0.28 @ 900 FPM
DC-4174 Extreme Weather Louvers
Airflow Tool 4 55.00% 0.01 oz. @ 1087 FPM
0.18 @1087 FPM
DCH-5704 Extreme Weather Louvers
Airflow Tool 5 45.80% 99% @ 1514 FPM (29.1 mph & 3 in/hr)
95% @ 1563 FPM (50 mph & 8 in/hr)
0.01 oz. @ 1169 FPM
0.13 @ 900 FPM
DCV-5704 Extreme Weather Louvers
Airflow Tool 5 45.80% 99% @ 1956 FPM (29.1 mph & 3 in/hr)
99% @ 1698 FPM (50 mph & 8 in/hr)
0.13 @ 900 FPM
DC-6174 Extreme Weather Louvers
Airflow Tool 6 57.60% 0.01 oz. @ 1046 FPM
0.19 @ 1046 FPM
DC-6804 Extreme Weather Louvers
Airflow Tool 6 38.30% 99% @ 2008 FPM (29.1 mph & 3 in/hr)
99% @ 1964 FPM (50mph & 8 in/hr)
0.01 oz. @ 1250 FPM
0.12 @ 1050 FPM
DC-5304 Extreme Weather Louvers
Airflow Tool 5 45.00% 99% @ 566 FPM (29.1 mph & 3 in/hr)
0.20 @ 700 FPM
EW-5210 Extreme Weather Louvers
Airflow Tool 5 45.10% 0.01 oz. @ 525 FPM
0.10 @ 525 FPM
DC-9614 Extreme Weather Louvers
Airflow Tool 9 59.13% 99% @ 1490 FPM (50 mph & 8 in/hr)
0.28 @ 900 FPM
PL-3600 Perform
Airflow Tool 5.25 47.40% 99% @ 1945 FPM (29.1 mph & 3 in/hr)
99% @ 1949 FPM (50mph & 8 in/hr)
0.17 @ 1000 FPM
1302 Non-Drainable
Airflow Tool 1.375 58.00%

NA

 0.06 @ 700 FPM
2252 Non-Drainable
Airflow Tool 2 35.40%

NA

 NA
4180 Non-Drainable
Airflow Tool 4 25.60%

NA

 0.21 @ 700 FPM
RS-3700 Storm Resistant
Airflow Tool 3 51.30% 99% @ 1598 FPM (29.1 mph & 3 in/hr)
99% @ 1598 FPM (50mph & 8 in/hr)
0.01 oz. @ 1250 FPM
0.29 @ 1250 FPM
RS-5800 Extreme Weather
Airflow Tool 5 54.00% 99% @ 1574 FPM (29.1 mph & 3 in/hr)
99% @ 1574 FPM (50mph & 8 in/hr)
0.01 oz. @ 1250 FPM
0.31 @ 1250 FPM
6870 Operating
Airflow Tool 6 53.20%

NA

 0.07 @ 700 FPM
RS-5900 Storm Resistant
Airflow Tool 5 54.40% 99% @ 1681 FPM (29.1 mph & 3 in/hr)
99% @ 1512 FPM (50mph & 8 in/hr)
0.01 oz. @ 1250 FPM
0.31 @ 1250 FPM
2282 Thinline Louvers
Airflow Tool 2 39.10%

NA

 0.20 @ 500 FPM

CS Non-Storm Resistant Louver

For complete performance information see chart below or call 1(800)526-6930.

Model Category Customize Depth Free Area Rain Defense Static Pressure
B-7505 Storm Resistant Louvers
Airflow Tool 7.375 45.80% 99% @ 1500 FPM (29.1 mph & 3 in/hr)
0.01 oz. @ 1250 FPM
99% @ 529 FPM (50mph & 8 in/hr)
0.17 @ 1050 FPM
PL-5700 Storm Resistant Louvers
Airflow Tool 7.5 44.50% 99% @ 2221 FPM (29.1 mph & 3 in/hr)
99% @ 2233 FPM (50mph & 8 in/hr)
0.01 oz. @ 1156 FPM
0.17 @ 1000 FPM
PL-4080 Perform
Airflow Tool 7.5 46.80% 0.01 oz. @ 882 FPM
0.20 @1000 FPM
A2097 Drainable
Airflow Tool 2 55.25% 0.01 oz. @ 904 FPM
0.13 @ 904 FPM
A4097 Drainable
Airflow Tool 4 50.40% 0.01 oz. @ 1040 FPM
0.2 @ 1040 FPM
A4177 Drainable
4 55.00% 0.01 oz. @ 1087 FPM
0.18 @1087 FPM
GS-407 Drainable
Airflow Tool 4 52.50% 0.01 oz. @ 775 FPM
0.10 @ 775 FPM
A6097 Drainable
Airflow Tool 6 52.10% 0.01 oz. @ 1190 FPM
0.23 @ 1190 FPM
A6155 Drainable
Airflow Tool 6 48.75% 0.01 oz. @ 1047 FPM
0.14 @ 1047 FPM
A6177 Drainable
Airflow Tool 6 57.60% 0.01 oz. @ 1046 FPM
0.19 @ 1046 FPM
GS-607 Drainable
Airflow Tool 6 52.80% 0.01 oz. @ 945 FPM
0.13 @ 945 FPM
B5157 Drainable
Airflow Tool 5 52.60% 0.01 oz. @ 1043 FPM
0.45 @ 1043 FPM
A4110 Non-Drainable
4 46.00% 0.01 oz. @ 647 FPM
0.09 @ 647 FPM
GS-410 Non-Drainable
Airflow Tool 4 42.50% 0.01 oz. @ 733 FPM
0.08 @ 733 FPM
GS-610 Non-Drainable
Airflow Tool 6 43.80% 0.01 oz. @ 1088 FPM
0.17 @ 1088 FPM
A4080 Non-Drainable
Airflow Tool 4 54.00% 0.01 oz. @ 804 FPM
0.12 @ 804 FPM
A4115 Non-Drainable
4 46.00% 0.01 oz. @ 647 FPM
0.09 @ 647 FPM
4830 Operating
Airflow Tool 4 33.10%

NA

 0.07 @ 700 FPM
A6100 Non-Drainable
Airflow Tool 6 48.00% 0.01 oz. @ 764 FPM
0.11 @ 764 FPM
A6110 Non-Drainable
6 48.00% 0.01 oz. @ 775 FPM
0.11 @ 775 FPM
A4100 Non-Drainable
Airflow Tool 4 46.00% 0.01 oz. @ 659 FPM
0.09 @ 659 FPM
6917 Operating
Airflow Tool 6 40.50% 0.01 oz. @ 1250 FPM
0.24 @ 1050 FPM
B-6485 Bold Line
Airflow Tool 6 52.90% 0.01 oz. @ 964 FPM
0.19 @ 964 FPM
A4085 Non-Drainable
Airflow Tool 4 54.00% 0.01 oz. @ 804 FPM
0.12 @ 804 FPM
A4105 Non-Drainable
Airflow Tool 4 46.00% 0.01 oz. @ 659 FPM
0.09 @ 659 FPM
A6080 Non-Drainable
Airflow Tool 6 51.50% 0.01 oz. @ 900 FPM
0.13 @ 900 FPM
A6085 Non-Drainable
Airflow Tool 6 51.50% 0.01 oz. @ 900 FPM
0.13 @ 900 FPM
A6105 Non-Drainable
Airflow Tool 6 48.00% 0.01 oz. @ 764 FPM
0.11 @ 764 FPM
A6115 Non-Drainable
6 48.00% 0.01 oz. @ 775 FPM
0.11 @ 775 FPM