Section 10200 – Louvers and Vents - Dampers and Louvers

b. Water Penetration: 1250 FPM (381) velocity through free area. c. Static Pressure Loss: Not more than .40” (10.16mm) water gauge (0.10kPa) at an airflow of 1,000 FPM (5.08m/s) velocity through free area. Wind velocity of 30 mph (13 m/s) directly at the face of the louver, with a rainfall rate of 3” per hour (75 mm/hr). Test data shows ................
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