You are here: Home > Air Compressors > Duplex Air Compressors
21 Items

Duplex Air Compressors


Duplex air compressors have everything needed to reduce downtime and help make the most out of your work day. All of our two-stage BelAire compressors come with a two year warranty that also includes valves. Shop online today with Best Buy Auto Equipment and contact our customer service representatives with any questions regarding our products or store policies. Ask about our monthly specials too!
Sort By:
Page of 1
BelAire 3112D 2 x 5HP 120G 2-Stage H Elec Duplex Air Compressor BelAire 3312D 2 x 5HP 120G 2-Stage H Elec Duplex Air Compressor
List Price: $6,585.00
: $4,012.00
List Price: $6,858.00
: $4,012.00
elAire 3112D 2 x 5 HP 120 Gal. Horizontal Two Stage Single Phase Electric Duplex Air Compressor P/N 8090250005 BelAire 3312D 2 x 5 HP 120G Horizontal Two Stage Three Phase Electric Duplex Air Compressor P/N 8090250018
BelAire 3112D 2 x 5 HP 120 Gal. Horizontal Two Stage Single Phase Electric Duplex Air Compressor P/N 8090250005
BelAire 3312D 2 x 5 HP 120G Horizontal Two Stage Three Phase Electric Duplex Air Compressor P/N 8090250018
BelAire 3312D4 2 x 5HP 120G 2-Stage H Elec Duplex Air Compressor BelAire 3112DL 2 x 7.5HP 120G H 2-Stage Elec Duplex Air Compressor
List Price: $6,858.00
: $4,012.00
List Price: $7,788.00
: $4,556.00
BelAire 3312D4 2 x 5HP 120G Horizontal Two Stage Three Phase Electric Duplex Air Compressor P/N 8090250019 BelAire 3112DL 2 x 7.5 HP 120G Horizontal Two Stage Single Phase Electric Duplex Air Compressor P/N 8090250006
BelAire 3312D4 2 x 5HP 120G Horizontal Two Stage Three Phase Electric Duplex Air Compressor P/N 8090250019
BelAire 3112DL 2 x 7.5 HP 120G Horizontal Two Stage Single Phase Electric Duplex Air Compressor P/N 8090250006
BelAire 3312DL 2 x 7.5HP 120G H2-Stage Elec Duplex Air Compressor BelAire 3312DL4 2 x 7.5HP 120G H 2-Stage Elec Duplex Air Compressor
List Price: $7,788.00
: $4,556.00
List Price: $7,788.00
: $4,556.00
BelAire 3312DL 2 x 7.5 HP 120G Horizontal Two Stage Three Phase Electric Duplex Air Compressor P/N 8090250020 BelAire 3312DL4 2 x 7.5HP 120G Horizontal Two Stage Three Phase Electric Duplex Air Compressor P/N 8090250021
BelAire 3312DL 2 x 7.5 HP 120G Horizontal Two Stage Three Phase Electric Duplex Air Compressor P/N 8090250020
BelAire 3312DL4 2 x 7.5HP 120G Horizontal Two Stage Three Phase Electric Duplex Air Compressor P/N 8090250021
FS-Curtis CA15 120G Simplex 15HP Horizontal Ultra Pack Air Compressor FS-Curtis CA5+ 120G Duplex 5(2)HP Electric Air Compressor
List Price: $6,312.00
: $4,797.12
List Price: $7,130.00
: $5,418.80
FS-Curtis CA15 120-Gallon Simplex 15HP Ultra Pack Horizontal Air Compressor w/Magnetic Motor Starter (3/60/200-208V - FCA15E15H1U-D9L1XX, 3/60/230V - FCA15E15H1U-D3L1XX, 3/60/460V - FCA15E15H1U-D4L1XX) FS-Curtis CA5+ 120-Gallon Duplex 5(2)HP Electric Air Compressor  (1/60/230V - FCA05E57D1S-A2L1XX, 3/60/200-208V - FCA05E57D1S-A9L1XX, 3/60/230V - FCA05E57D1S-A3L1XX, 3/60/460V - FCA05E57D1S-A4L1XX)
FS-Curtis CA15 120-Gallon Simplex 15HP Ultra Pack Horizontal Air Compressor w/Magnetic Motor Starter (3/60/200-208V - FCA15E15H1U-D9L1XX, 3/60/230V - FCA15E15H1U-D3L1XX, 3/60/460V - FCA15E15H1U-D4L1XX) FS-Curtis CA5+ 120-Gallon Duplex 5(2)HP Electric Air Compressor (1/60/230V - FCA05E57D1S-A2L1XX, 3/60/200-208V - FCA05E57D1S-A9L1XX, 3/60/230V - FCA05E57D1S-A3L1XX, 3/60/460V - FCA05E57D1S-A4L1XX)
BelAire 6312H 2 x 10HP 120G H Iron Series Elec Air Compressor BelAire 6312D4 2 x 10HP 120G H Iron Series Elec Duplex Air Compressor
List Price: $9,348.00
: $5,469.00
List Price: $9,348.00
: $5,469.00
BelAire 6312H 2 x 10HP 120G Iron Series Three Phase Electric Air Compressor P/N 8090253413 BelAire 6312D4 2 x 10HP 120G Iron Series Three Phase Electric Duplex Air Compressor P/N 8090253421
BelAire 6312H 2 x 10HP 120G Iron Series Three Phase Electric Air Compressor P/N 8090253413
BelAire 6312D4 2 x 10HP 120G Iron Series Three Phase Electric Duplex Air Compressor P/N 8090253421
FS-Curtis CA7.5 120G Duplex 7.5(2)HP Electric Air Compressor BelAire 6320D 2 x 10HP 200G H Iron Series ElecDuplex Air Compressor
List Price: $7,400.00
: $5,624.00
List Price: $10,102.00
: $5,910.00
FS-Curtis CA7.5 120-Gallon Duplex 7.5(2)HP Electric Air Compressor (1/60/230V - FCA07E57D1S-A2L1XX, 3/60/200-208V - FCA07E57D1S-A9L1XX, 3/60/230V - FCA07E57D1S-A3L1XX, 3/60/460V - FCA07E57D1S-A4L1XX) BelAire 6320D 2 x 10HP 200G Iron Series Three Phase Electric Duplex Air Compressor P/N 8090253439
FS-Curtis CA7.5 120-Gallon Duplex 7.5(2)HP Electric Air Compressor (1/60/230V - FCA07E57D1S-A2L1XX, 3/60/200-208V - FCA07E57D1S-A9L1XX, 3/60/230V - FCA07E57D1S-A3L1XX, 3/60/460V - FCA07E57D1S-A4L1XX) BelAire 6320D 2 x 10HP 200G Iron Series Three Phase Electric Duplex Air Compressor P/N 8090253439
BelAire 6320D4 2 x 10HP 200G H Iron Series Elec Duplex Air Compressor FS-Curtis CA5+ 120G Duplex 5(2)HP Ultra Pack Air Compressor
List Price: $10,102.00
: $5,910.00
List Price: $8,651.00
: $6,574.76
BelAire 6320D4 2 x 10HP 200G Iron Series Three Phase Electric Duplex Air Compressor P/N 8090253447 FS-Curtis CA5+ 120-Gallon Duplex 5(2)HP Utlra Pack Air Compressor  (1/60/230V - FCA05E57D1S-A2L1XX, 3/60/200-208V - FCA05E57D1U-A9L1XX, 3/60/230V - FCA05E57D1U-A3L1XX, 3/60/460V - FCA05E57D1U-A4L1XX)
BelAire 6320D4 2 x 10HP 200G Iron Series Three Phase Electric Duplex Air Compressor P/N 8090253447
FS-Curtis CA5+ 120-Gallon Duplex 5(2)HP Utlra Pack Air Compressor (1/60/230V - FCA05E57D1S-A2L1XX, 3/60/200-208V - FCA05E57D1U-A9L1XX, 3/60/230V - FCA05E57D1U-A3L1XX, 3/60/460V - FCA05E57D1U-A4L1XX)
FS-Curtis CA7.5 120G Duplex 7.5(2)HP Ultra Pack Air Compressor FS-Curtis CA10 120G Duplex 10(2)HP Electric Air Compressor
List Price: $8,823.00
: $6,705.48
List Price: $8,968.00
: $6,815.68
FS-Curtis CA7.5  120-Gallon Duplex 7.5(2)HP Utlra Pack Air Compressor  (1/60/230V - FCA07E57D1S-A2L1XX, 3/60/200-208V - FCA07E57D1U-A9L1XX, 3/60/230V - FCA07E57D1U-A3L1XX, 3/60/460V - FCA07E57D1U-A4L1XX) FS-Curtis CA10 120-Gallon Duplex 10(2)HP Electric Air Compressor (3/60/200-208V - FCA10E57D1S-A9L1XX, 3/60/230V - FCA07E57D1S-A3L1XX, 3/60/460V - FCA10E57D1S-A4L1XX)
FS-Curtis CA7.5 120-Gallon Duplex 7.5(2)HP Utlra Pack Air Compressor (1/60/230V - FCA07E57D1S-A2L1XX, 3/60/200-208V - FCA07E57D1U-A9L1XX, 3/60/230V - FCA07E57D1U-A3L1XX, 3/60/460V - FCA07E57D1U-A4L1XX) FS-Curtis CA10 120-Gallon Duplex 10(2)HP Electric Air Compressor (3/60/200-208V - FCA10E57D1S-A9L1XX, 3/60/230V - FCA07E57D1S-A3L1XX, 3/60/460V - FCA10E57D1S-A4L1XX)
FS-Curtis CA10 120G Duplex 10(2)HP Ultra Pack Air Compressor FS-Curtis OL5 Duplex 5HP 120G Oil-less Air Compressors
List Price: $10,250.00
: $7,790.00
List Price: $13,582.00
: $10,322.32
FS-Curtis CA10 CA10 120-Gallon Duplex 10(2)HP Utlra Pack Air Compressor (3/60/200-208V - FCA10E71D1U-A9L1XX, 3/60/230V - FCA10E71D1U-A3L1XX, 3/60/460V - FCA10E71D1U-A4L1XX) FS-Curtis OL5 Duplex Tank-Mounted 5HP 120-Gallon Oil-less Air Compressors (230V or 460V 3-Phase)
FS-Curtis CA10 120-Gallon Duplex 10(2)HP Utlra Pack Air Compressor (3/60/200-208V - FCA10E71D1U-A9L1XX, 3/60/230V - FCA10E71D1U-A3L1XX, 3/60/460V - FCA10E71D1U-A4L1XX) FS-Curtis OL5 Duplex Tank-Mounted 5HP 120-Gallon Oil-less Air Compressors  3-Phase (230V FOL05W50D1S-A3H1XX or 460V FOL05W50D1S-A4H1XX)
FS-Curtis OL7.5 Duplex 7.5HP 120G Oil-less Air Compressors FS-Curtis OL10 Duplex 10HP 200G Oil-less Air Compressors
List Price: $15,194.00
: $11,547.44
List Price: $18,899.00
: $14,363.24
FS-Curtis OL7.5 Duplex Tank-Mounted 7.5HP 120-Gallon Oil-less Air Compressors (230V or 460V 3-Phase) FS-Curtis OL10 Duplex Tank-Mounted 10HP 200-Gallon Oil-less Air Compressors (230V or 460V 3-Phase)
FS-Curtis OL7.5 Duplex Tank-Mounted 7.5HP 120-Gallon Oil-less Air Compressors  3-Phase (230V FOL07W75H1S-A3D1XX or 460V FOL07W75D1S-A4H1XX) FS-Curtis OL10 Duplex Tank-Mounted 10HP 200-Gallon Oil-less Air Compressors  3-Phase (230V FOL10W10D2S-A3H1XX or 460VFOL10W10D2S-A4H1XX)
FS-Curtis OL15 Duplex 15HP 200G Oil-less Air Compressors
List Price: $22,075.00
: $16,777.00
FS-Curtis OL15 Duplex Tank-Mounted 15HP 200-Gallon Oil-less Air Compressors (230V or 460V 3-Phase)
FS-Curtis OL15 Duplex Tank-Mounted 15HP 200-Gallon Oil-less Air Compressors  3-Phase (230V FOL15W15D2S-A3H1XX or 460V FOL15W15D2S-A4H1XX)
   
 

Duplex air compressors are a lot like conventional 2-stage air compressors, but with several distinct advantages. The most notable advantage is its set of two, equal-sized pumps and motors. There are many ways you can benefit from having an air compressor that has dual pumps and motors.

Oftentimes, having two motors/pumps means you can continue with your project even if one fails or is in need of servicing. Or, if you’d like to use an air compressor but don’t have access to three-phase electrical service, a duplex compressor with single phase motor/pumps is a great alternative. And if your air flow usage varies depending on which air tool you use or which project you’re working on, this type of air compressor can supply air for both low and high demand jobs. Because of the dual motor design, the horsepower rating for a duplex air compressor will always reflect the combined HP of both motors.

If the compressor is rated at 10HP, it will have two 5HP motors mounted to it. If it’s is rated at 20HP, it will have two 10HP motors mounted to it, and so on and so forth. For this reason, the horsepower of a duplex air compressor is sometimes written as 2 x 5HP, or 2 x 10HP, etc.

At Best Buy Automotive Equipment, you can choose from standard or ELITE model duplex compressors, or you can choose one of BelAire’s Iron Series compressors which features all cast iron construction, automotive-style rod bearings and wrist pins, concentric ring valves, splash lubrication, and finned coolers. No matter which quality-made BelAire duplex air compressor you choose, you can expect:

• Huge 120 or 200-gallon tank
• Single-phase and three-phase electric options
• Motors up to 20HP and 50.50 CFM
• Alternator for optimal performance
• Solid cast iron cylinders
• Dual pressure switch controls
• Magnetic starters
• Factory-inspected at full pressure
• ASME-certified safe
• Two-year full-coverage warranty

Shop online today and find the right air compressor at the right price. Also, feel free to contact our customer service representatives with any questions you may have regarding our products, payment options, delivery, or store policies. For more information about purchasing an air compressor, read our Air Compressor Buying Guide. And don’t forget to check out our monthly specials, too!