Specification Sheet

384
CONSTRUCTION/SPECIFICATION CHECKLIST
Construction
The TUB series is built with heavy-gauge steel to provide years of reliable service. Tubes 24-60" (to
10HP) are G-90 galvanized steel. Sizes 24-60" have rolled 2" anged ends.
The TUB series is also available in aluminum construction sizes 24-48" with welded aluminum angle
anges on each end.
Upblast fans include a heavy-gauge galvanized steel windband with pressure operated damper doors.
A galvanized channel section drains water out of the fan area when the damper doors are closed.
All fans are available in epoxy, heresite or polyester resin nishes. Special colors can be ordered.
Contact you representative for the cost and nish best suited for your application.
Blades
For versatility, blades are offered in special high-strength, adjustable pitch aluminum airfoil, or adjustable
pitch berglass reinforced polypropylene. TUB units with special steel blades are available upon request.
These styles were selected to provide optimum performance and strength at low to moderate noise
levels. Refer to the performance tables for the best selection.
The adjustable pitch aluminum airfoil propeller performs over a wide range of static pressures. This
blade's strength is derived from matching T-6061 extruded aluminum airfoil sections to a heavy steel
plate hub. All S&P blades are statically and dynamically balanced.
The highly corrosive resistant polypropylene blade's efciency is due to the uniform twisting of the
airfoil section over its entire length, resulting in less turbulence. The operating parameters are -40°F
to 185°F ambient temperatures. Hubs are produced from die cast aluminum resulting in a light weight,
high strength factory adjustable pitch blade.
Drives
This belt drive model comes with 200,000 hour L50 relubricable pillow block bearings and remote
grease lines as a standard feature. Bearings and drives are isolated from the airstream by bolted,
heavy-gauge galvanized belt tubes and bearing covers. Belt drive models through 3HP ship with
variable pitch pulleys; over 3HP have xed pulleys. The motor base slides for easy belt adjustment. All
units are factory assembled and test run for quality assurance.
Motors
Motors used in the TUB series are heavy-duty, nationally recognized, with nationwide service centers.
Standard motors are open drip-proof (ODP). High efciency, totally enclosed fan cooled (TEFC),
explosion proof, and corrosion duty motors are available as an option.
Fan shafts shall be turned, ground and polished steel coated with an anti-rust compound to resist
corrosion.
MODEL TUB
TUBEAXIAL UPBLAST PROPELLER ROOF EXHAUSTER