Downblast roof ventilators are aluminum and steel constructed for lasting dependability.
Roof fan down blastt direct.
S p sdbd14 centrifugal roof mounted direct drive downblast fan 25 hp 2196 cfm single phase 230 volts sdbd14mm1cs.
Downblast roof exhaust fans include both direct drive and belt drive options.
Direct drive motors are encased in weather tight compartment and all drives are factory set.
Hoodmart direct drive downblast exhaust fans made in usa are constructed with heavy gauge aluminum.
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Get a direct drive axial downblast ventilator from grainger to help provide a steady exhaust or supply of clean air under low to moderate static pressures.
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These exhaust fans feature nema 1 junction boxes in motor enclosures and are ul 705 listed for power ventilators.
Fans ship in 3 5 business days.
High pressure option for long ductwork with high resistance.
Direct drive downblast exhaust fans are considered more economical for low volume cfms of 2 000 or less with moderate to high static pressure.
They are ideal for use in applications where steady exhaust is needed under low to to moderate static pressure conditions and can be mounted on the roof or high up on the wall.
Downblast roof ventilators provide air ventilation and circulation for applications including residential commercial industrial and more.
Direct drive downblast exhaust fan 1100 cfm 479 00 freight included vr33 centrifugal dowbnlast direct drive 1100 cfm 0 333 hp 1ph.
Direct drive for short low resistance duct work with average air volume requirements.
Belt drive for average resistance ductwork and high volume requirements.
They have fewer moving parts and are very energy efficient requiring minimal maintenance.
The fan blades of a direct drive downblast ventilator are attached directly to the shaft of the motor.