wind socks
empire tv16g external wind driven turbine ventilator
turbine ventilator neck diameter 16 inches air flow 4 mile wind 950 cfm externally braced galvanized steel for roof br b features b ul li cfm 4 mph wind 950 li li includes li li item turbine ventilator li li overall height in . 21 3 4 li li overall width in . 25 1 2 li li type wind driven li li requires base for new installations li li construction material galvanized steel with steel bracing li li bracing external li li bearing system features oiless bronze upper bearing and lower thrust type ball bearing li li throat dia . in . 16 li ul
empire