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Patterson 18" high-velocity fan
The middle of the Patterson range: 3,800 CFM with an 80 ft throw from a fan that still mounts on a rack arm. A common choice for standard flower rooms where one fan needs to push air down the length of the room.
- 3,800
- CFM
- 80 ft
- Air throw
- 2,700 ft²
- Coverage per fan
- 1,725
- RPM
- 2 years
- Warranty
Choose the motor for your power supply
Three motor options on the same fan. The size sets the airflow; the motor sets the power supply and how speed is controlled.
| SKU | Motor | Voltage | HP | Rated amps | Best for |
|---|---|---|---|---|---|
| H18A | Single phase, corded (12 ft cord) | 115V / 208–230V, 1-phase | 1/2 | 6.0 / 3.0–2.9 A | Plug-in rooms on standard outlets |
| H18B | Three phase, hard-wired | 208–230V / 460V, 3-phase | 1/2 | 2.11–1.91 / 0.96 A | Rooms wired for commercial three-phase |
| H18B-INV | Inverter-duty three phase, for VFD speed control | 230V / 460V, 3-phase | 1/2 | — | Banks of fans slowed or sped up together from one VFD |
Rated amps from Patterson's spec sheet. Rated amps for inverter-duty motors are not listed on Patterson's spec sheet; the VFD is sized to total fan horsepower.
18" fan specifications
| Air delivery | 3,800 CFM |
|---|---|
| Air throw | 80 ft |
| Coverage | 2,700 ft² |
| Propeller | 17" diameter, 3-blade galvanized aluminum, 33° pitch |
| Speed | 1,725 RPM |
| Sound | 65.1 dB @ 20 ft · 76.3 dB @ 3 ft |
| Dimensions | 24" W × 16" D |
| Inlet ID | 19.125" |
| Motor frame | 56 |
| Shipping weight | 44 lbs (yoke mount) |
| Fan inlet / outlet | High-impact polypropylene |
| Finger guards | OSHA compliant, spiral-wound steel |
| Mount | Yoke mount standard |
| Enclosure | TEAO (totally enclosed, air over) |
| Ambient rating | 104°F |
| Duty cycle | Continuous |
| Warranty | 2 years |
Mounts that fit
- RM 18-22 WHITERack mount, 19" arm, white. 30" W × 30.5" H with the fan installed, 51 lbs shipping.
- BCBeam clamp for structural beams and trusses.
- POLE 1'1 ft pole to drop the fan below a beam or ceiling mount.
Where the 18" High-Velocity fan works best
- Flower rooms up to roughly 2,700 ft² per fan
- Long, narrow rooms where air has to travel 60–80 ft
- Rack-mounted airflow over taller canopies with the RM 18-22 WHITE rack mount
Common questions
Which motor do I need?
If the room has standard single-phase outlets, the A model plugs in on its 12 ft cord. If the room is wired for three-phase commercial power, the B model is hard-wired. Choose the INV model if you want to control the speed of several fans together from a variable frequency drive.
How is speed controlled on the INV model?
Inverter-duty fans run from a variable frequency drive (VFD). One drive can run a bank of fans; it is sized to the total horsepower on it and to the facility's input power. We carry E510 drives from 3 to 8 HP in 230V and 460V versions. See Patterson controls and VFDs.
How is it mounted?
Every fan ships with a yoke mount for walls, posts and ceilings. Rack mounts hang it from pallet racking or shelving to clear the canopy, and the beam clamp grips a structural beam or truss without drilling.
Is there a white EC version?
Yes for the 14", 18" and 22" sizes. Patterson EC variable-speed fans use an auto-adapting 115–277V motor with speed control from 300 to 1,800 RPM.
Documentation
Specifications from Patterson Fan Co. and subject to change by the manufacturer.
Other Patterson fans
See your pricing in your account
The Patterson 18" High-Velocity Fan is in the Hydro Supply portal. Sign in to see the price for your account and order, or send us your room layout and we'll spec the fan count, sizes and mounts.