cupolas
dayton 2rb67 roof vent48 inless drive pkg
exhaust ventilator emergency smoke removalaxial upblast less drive pkg propeller dia 48 in cfm range 25642 to 34761 0.000 in sp max inlet temp 120 deg f roof mounting location base width 57 1 2 in base length 57 1 2 in overall height 71 5 6 in br b features b ul li base length in . 57 1 2 li li base width in . 57 1 2 li li bearing type high temperature regreaseable pillow block li li cfm 0.000 in . sp li li cfm 0.125 in . sp li li cfm 0.250 in . sp li li cfm 0.375 in . sp li li cfm 0.500 in . sp li li cfm 0.675 in . sp li li cfm 0.750 in . sp li li dimension a in . li li dimension b in . li li dimension c in . li li dimension d in . li li dimension e in . li li item exhaust ventilator li li max . bhp li li max . operating amps li li motor hp li li overall dia . in . 56 li li overall height in . 71 5 6 li li phase li li propeller dia . in . 48 li li recommended damper size in . li li sones 0.125 in . sp 5 ft. li li sones 0.250 in . sp 5 ft. li li type emergency smoke removalaxial upblast less drive pkg li li cfm range 25642 to 34761 0.000 in sp li li drive type belt li li fan rpm li li housing material galvanized steel li li motor hz li li motor voltage li li mounting location roof li li recommended damper stock no . li li recommended 12 in . fixed curb item no. 4hx53 li li recommended 8 in . fixed curb item no. 4hx45 li li rpm range 313 to 587 li li speed control no li li stock no. 2rb67 li li agency compliance ul emergency smoke control ul 793 li li max . inlet temp . deg . f 120 li li propeller material steel li li requires roof curb for new installations li li adj. 12 3 8h roof curb stock no. 2zv86 li li adj. 6 3 8h roof curb stock no. 3c216 li li base height in . 1 3 4 li li motor hp range 2 to 5 li li shaft dia . sheave end in . 1 1 4 li li shaft dia . propeller end in . 1 1 4 li li speed controllable no li ul