Roof Ventilation Fans Are Weatherproof To Ensure Long Life.
Industrial roof ventilators provide vertical discharge using enclosed, fan cooled motors. Rolled venturi surrounds fan within the 18 gauge galvanized steel wind band. Wind band has 2 double rolled edge top and bottom for extra strength. Rugged one-piece cast aluminum propellers are made with 1/8 to 1/4" thick blades and hub. Belt & Direct drive roof ventilators feature rubber stop and seals under dampers. Heavy duty 14 gauge fan panels are welded to 10 gauge motor base. Rugged steel base with welded mounting plates. 24 - 30 Ventilators feature 1/2" schedule 40 pipe motor base supports. 36 48 Ventilators feature 3/4" schedule 40 motor base supports. Single Phase Motors are field convertible from 115V to 230V. 3 Phase Motors are field convertible from 230V to 460V.