Dual 280C Onboard Air System (2.96 CFM · 150 PSI · 33 Amp · 12V · 2.5 Gal. Tank)

VIAIR’s Dual 280C Onboard Air System is a pre-packaged compressed air solution that provides two 280C, 30% duty cycle compressors, a 2.5 gallon air tank, inline pressure regulator, and all components needed to install a working system capable of inflating tires, managing air locking differentials, and more.

Please Note: Use thread sealant for proper installation. Thread tape is not recommended. Properly sealed, recommended torque for 1/8″ is 10 ~ 11 ft. lbs. Recommended torque for 1/4″ and 3/8″ is 12 ~ 15 ft. lbs.

Features & Specifications

– 2.5 Gallon 150 PSI VIAIR Air Tank	– 12-Volt
– (2) 280C VIAIR Compressors w/Thermal Overload Protectors	– Permanent Magnetic Motor
– 30ft. Coil Hose with Quick Connects	– Duty Cycle: 30% @ 100 PSI
– Tire Inflation Gun with 200 PSI Gauge	– Max. Working Pressure: 150 PSI
– 0-220 PSI Pressure Regulator	– Max. Amp Draw: 33 Amps
– Sealed Pressure Switch (110 PSI on, 145 PSI off)	– Ingress Protection Rating: IP54
– 150 PSI Illuminated Dash Panel Gauge	–
– (2) 40-amp Relays	–
– Inline Fuse Holder	–
– 1/4” Quick Connect Coupler (M)	–
– 1/4” 175 PSI Safety Valve	–
– 1/4” Drain Cock	–
– (2) 1/8” BSP to 1/4” NPT	–
– (4) 1/4” Compression Fittings	–
– 5 Pc. 1/4” NPT Plugs Kit	–
– 6-Port Billet Manifold with Mounting Bracket (1/4”)	–
– (2) 20ft. 1/4” Air Line Included	–
– Electrical Connections	–
*All Fittings are NPT rated unless otherwise noted.*	*Wiring harness NOT included.*

Performance Data

PSI	CFM	A	BAR	LPM	A
0	2.96	21	0	84.0	21
10	2.78	24	1.0	75.5	25
20	2.58	26	2.0	69.0	28
30	2.38	28	3.0	62.5	30
40	2.27	29	4.0	56.5	31
50	2.13	31	5.0	51.5	32
60	1.97	31	6.0	47.0	32
70	1.88	32	7.0	43.5	32
80	1.74	32	8.0	39.5	32
90	1.62	32	9.0	36.0	32
100	1.56	32	10.0	33.5	32
110	1.46	32
120	1.37	32
130	1.29	32
140	1.23	32
150	1.16	32

* Supply Voltage: 13.8 Volts

Fill Rates

2.5 Gallon Tank	Fill Rate
0 to 105 PSI	1 min. 06 sec. (± 10 sec.)
85 to 105 PSI	16 sec. (± 03 sec.)
0 to 145 PSI	1 min. 44 sec. (± 10 sec.)
110 to 145 PSI	31 sec. (± 05 sec.)
33″ x 12.5″	Fill Rate
0 to 30 PSI	4 min. 10 sec. (± 15 sec.)
15 to 30 PSI	1 min. 50 sec. (± 10 sec.)
35″ x 15.5″	Fill Rate
0 to 30 PSI	5 min. 02 sec. (± 15 sec.)
15 to 30 PSI	2 min. 15 sec. (± 10 sec.)