Panel
Assembly
• Panels
shall be heavy-gauge G90 galvanized with spun one piece venturi.
• Motor and
bearing plate shall be a minimum of 12 gauge galvanized steel except size 20.
• Panel end
support frame assembly shall be of welded, not bolted, construction with
prepunched mounting holes for easy installation.
Propeller
Blades
shall be die formed galvanized G90 steel of minimum 16 gauge. Blades shall be
bolted to an epoxy coated hub which is keyed to the fan shaft. Propeller
assembly shall be statically balanced.
Drives
All
sheaves shall be sized to a minimum 150% of driven horsepower, machined cast
iron adjustable pitch through 3 horsepower, keyed to both the motor and fan
shaft. Fan shaft shall be precision turned, ground and polished steel. Belts
shall be nonstatic oil and heat resistant V-belts.
Bearing
All bearings
shall be self-aligning cast iron pillow block type with relube fitting and of
the air handling design. Bearing design shall be for a minimum of L-50 200,000
hour average life.
Motor
Permanently
sealed ball bearing type furnished to the specified
voltage, phase and enclosure. All motors shall be mounted and
factory run tested.
