The BelAire 338V4 delivers 5 HP and 18.5 CFM at 100 PSI from a belt-driven two-stage pump on an 80-gallon vertical ASME tank. Its defining advantage is 460V three-phase power, making it a direct fit for shops already equipped with high-voltage three-phase service. The factory-installed magnetic starter eliminates the need to purchase or wire one separately. At 460V, the motor operates at lower current than comparable low-voltage versions, which can be useful for longer electrical runs from a distant panel. Note: the compressor measures approximately 39" × 24" × 77" and weighs 457 lbs, so confirm overhead clearance, access and the installation location before ordering.
The two-stage pump compresses air in two steps, with an aftercooler between them to manage heat before the final compression stage. This allows the unit to reach 175 PSI while the belt-driven design keeps pump speed lower than motor speed, helping control operating temperature during repeated use. The pump is splash lubricated and includes an oil sight glass for routine level checks, while the fully enclosed belt guard adds protection around the drive system. Published delivery figures at 175 PSI differ between sources, with 16 CFM and 16.6 CFM both listed. Pump construction is also described differently in the source material, so confirm these specifications in writing if they affect your application.
This compressor is best suited to industrial facilities, machine shops and professional service bays that already have 460V three-phase power available. It can also make sense where the electrical panel is located far from the compressor and lower current draw is beneficial. It is not intended for residential garages or single-phase electrical systems. Before purchasing, have a licensed electrician verify that 460V three-phase service is available at the installation point and determine the appropriate electrical installation requirements. A regulator and the recommended air dryer are not included, so plan for those separately if your application requires them.
Specifications
| Supply |
|
| Motor |
5 HP |
| Voltage / phase |
460V, 3-phase |
| Magnetic starter |
Included |
| Recommended breaker |
15 amp (at this supply voltage) |
| Pump, tank and body |
|
| Pump |
Two-stage, belt drive, splash lubricated, aftercooler fitted |
| Rated delivery at 100 PSI |
18.5 CFM |
| Delivery at 175 PSI |
Published as 16 CFM and as 16.6 CFM — see above |
| Maximum pressure |
175 PSI |
| Tank |
80 gallon, vertical, ASME, manual drain |
| Tank outlet |
3/4" |
| Dimensions |
39" × 24" × 77" |
| Weight |
457 lbs |
Certification, Stated Plainly
The tank is built to the American pressure-vessel code and stamped accordingly, with a matching safety valve. This certification applies to the vessel—its design, welds and inspection.
It is not a third-party safety listing for the assembled electrical machine. That is a separate document that some insurers, fleet policies and local authorities may require. If a listing is required for your coverage or permit, ask us in writing before ordering and we will confirm the available documentation in writing.
Shipping & Delivery
Ships by freight to the lower 48 states, not by parcel carrier. The machine weighs 457 lbs and stands 77" tall. Freight is quoted live at checkout for your delivery address. Residential delivery carries an additional fee, while terminal pickup is an alternative.
Plan unloading before the truck arrives. You will need a forklift, loading dock or other suitable equipment to safely remove the crate. When it arrives, inspect the shroud, belt guard, gauges and tank with the driver present. Record any damage on the delivery paperwork and photograph the shipment before signing.
Warranty
The listing states a 2-Year factory warranty for both consumer and commercial use, with the warranty document available on this page.
If a failure occurs, contact us before disassembling the pump, starter or other affected component. The manufacturer may need to inspect the failed part in its original condition. Stop using the machine, document the problem with photographs, and follow the warranty claim instructions.
