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40" TUBE AXIAL EXHAUST FANS (GFA MODELS)
GFA models of GFS’ tube axial fans feature continuously welded housing for an airtight seal. The propellers are non-sparking cast aluminum, providing consistent air velocity at higher static pressures. The universal motor plates allow for adjustable belt tensioning. The bearings are of premium air handling quality, self-aligning and have an L10 life of 40,000 hours. The belt guard provides protection from the rotating pulley, per OSHA requirements.
| Part no. | GFA-40 |
| A. Ring to Ring | 30" |
| B. Inside Dim | 40" |
| C. Mounting Bolt | 41 3/4” |
| D. Outside Dim. | 43” |
Fan Performance: CFM at Static Pressure
GFS GFA-40VP-050 tube axial fan with a 5 HP motor (motor sold separately; performance shown is with the 5 HP motor this fan is built for). Fan speed 915-1140 RPM, adjustable with the variable-pitch motor sheave. Sound 87-93 dBA at 5 ft.
| Static pressure (in. w.c.) | Airflow (CFM) |
|---|---|
| Free air (0") | 21,163 – 26,367 |
| 0.25" | 18,374 – 24,197 |
| 0.375" | 16,364 – 23,032 |
| 0.5" | 13,626 – 21,693 |
| 0.75" | 15,746* – 17,392 |
Each CFM range runs from the slowest to the fastest sheave setting. * Lowest CFM the fan can run at that static pressure (the fan curve is unstable below it). Pressures not listed are outside this fan's rating. Sound data obtained under laboratory conditions. Source: Global Finishing Solutions accessory catalog.
Note: Sound level data given in the fan chart was obtained under laboratory conditions. It is not likely that these results will permit determination of sound power in all site conditions.
Data published in this chart may be used for the following purposes:
- Comparison of fans that are similar in type and size.
- Scaling down fan noise from one size and speed to another size and speed.
Depending on the application, configuration of the apr duct, attention characteristics of material used, and acoustical condition, etc., the reduction in dB will vary.
Manufacturer Warranty: 12 Months