Series 19I

Series 19I Belt Drive Hooded Roof Ventilator, Intake | Hartzell Air Movement
Belt Drive Hooded Roof Ventilator, Intake

The Series 19I Hooded Roof Ventilator design provides complete protection from the elements for supply airflow. The unit’s large hood surface reduces the air velocities through the ventilator. This feature minimizes pressure drop through the hood and eliminates the entrainment of rain into supply units. The motor and drive components are all located outside the airstream and are enclosed by the cover.

An efficient, high-performance ventilator with a compact, low-profile design, the Series 19I is best-suited for applications where noise is a factor. The belted arrangement prevents the necessity of using costly low-speed motors, as in direct-drive operations. Sizes 24 through 84" offer performance from 4,080 to 131,000 CFM at free air on intake.

Hartzell Hooded Roof Ventilators are designed with basic functionality in mind and facilitate mounting of optional items. Hartzell has designed the Series 19I so that permanent or disposable filters may be added to the hood as an accessory item, i.e., a Series 19F.

The hood is hinged on units through size 36", allowing the hood to be rotated to the side or removed for access to the fan assembly. Sizes 42 through 84" feature split hoods which are removable for access to the fan. These larger sizes are available with Hartzell’s unique slide rail access package to allow easy separation of the hood halves for inspection and maintenance.

Standard construction on these units accommodates a 60 mph maximum wind load. Higher wind load construction features are available as an option.

All hoods size 36" and larger are shipped separately from the base and are to be mounted in the field. Lifting eyes and hardware required for securing the hood to the base are furnished as standard.

Also available as a Series 16I with the motor out of the airstream.

Additional Series 19I Belt Drive Hooded Roof Intake Ventilator features:

  • Heavy-duty industrial construction
  • Access door standard on all units
  • Cast aluminum airfoil propellers
  • Motors and drives located outside the airstream
  • Static resistant V-belts
  • Lifting lugs are a standard feature for ease of handling and installation
  • Industrial-grade, powder coat enamel finish standard
  • Dynamically balanced at the factory prior to shipping
  • Special coatings, constructions, motors and accessories also available


  • Specifications
  • Resources
  • Market Applications
Material Type: 
Pressure Range: 
0-1.5" s.p.
Roof Ventilator
Market Category: 
Food Processing
Heavy Industry
Pulp and Paper