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Type P Tubeaxial Fan, Direct Drive
The tubeaxial fan is built for demanding environments—hospitals, schools, research laboratories, fume exhaust systems, and high‑moisture areas. Its flexible mounting options allow the PTA to be installed directly within ductwork, making it a smart choice for a wide range of industrial and commercial applications. At its core is a one-piece impeller cast from high-strength aluminum alloy. Engineered for maximum efficiency, it’s available with a broad range of hub-to-tip ratios, enabling precise performance matching to diverse airflow and pressure requirements.
Size
12 to 60 inches (305 mm to 1,525 mm)
Airflow
96,000 CFM (163,100 m3/hour)
Static pressure
5 inches w.g. (1,240 Pa)
Typical Applications Include
Data Center Exhaust, General HVAC, Generator Room Ventilation, Swimming Pool Exhaust, Kitchen Exhaust, Dishwasher Exhaust, Elevator Shaft Exhaust/Pressurization, Emergency Smoke Exhaust, Stairwell Pressurization
Configurations
Direct and Belt Driven – vertical & horizontal mount configurations
Impeller Type
Aluminum
Optional Construction
Clamshell Design, Swingout Design, Spark Resistant Construction, Aluminum Housing, Hot Dip Galvanized Housing, 304SS Housing, 316SS Housing
Paper Mill Ventilation Application
Whether duct mounted or provided with an inlet bell for
open inlets, this is the logical choice
for almost any ventilating system. Available as either
a supply or return fan, the magnitude of fan/impeller
combinations to choose from ensures the user of a high
efficient, economical, quiet, long-running fan.
open inlets, this is the logical choice
for almost any ventilating system. Available as either
a supply or return fan, the magnitude of fan/impeller
combinations to choose from ensures the user of a high
efficient, economical, quiet, long-running fan.
Construction Features
Swingout Construction
Swingout construction provides easy access to the fan
for cleaning and general maintenance without removing
it from the ductwork. When quick-open clamp latches
are released, the door swings out on heavy-duty hinges
to provide out of the airstream access to the impeller for
cleaning. For additional access to the shaft and bearings,
a split inner cylinder is provided. Available in sizes 21-60.
for cleaning and general maintenance without removing
it from the ductwork. When quick-open clamp latches
are released, the door swings out on heavy-duty hinges
to provide out of the airstream access to the impeller for
cleaning. For additional access to the shaft and bearings,
a split inner cylinder is provided. Available in sizes 21-60.
Clamshell Construction
Clamshell construction is ideal for applications needing regular cleaning. Depending on the size, one door (sizes 18-36) or two doors (sizes 42-60) are secured with quick access latches. These doors open outward and allow access to the internal components of the fan. As standard, there is an access door on the inner cylinder, allowing easy access to clean around the bearings. It is essential to follow proper safety precautions during cleaning. If bearing, shaft or impeller replacement is required, the fan should be removed from the ductwork or roof to facilitate safe replacement of parts. If replacement of these parts while ducted or on the roof is required, it is recommended to use swingout construction.
