EMAX EP07DW120V1 NEMA4 Compliant Weather-Resistant Duplex 15HP Air Compressor, 62 CFM, 230V 1-Phase, 120-Gal Horizontal Tank with Alternating Switch

The EMAX EP07DW120V1 is a NEMA4-compliant, weather-resistant duplex air compressor that pairs two 7.5 HP two-stage pressure-lubricated pumps (15 HP combined) on a 120-gallon horizontal ASME tank. It delivers 62 CFM at up to 175 PSI, runs on 230V 1-phase power, and includes an alternating switch. It suits shops and facilities that need high air volume, redundancy, and heavy-duty, continuous-demand performance.

Duplex Package & Tank

• Duplex Configuration: Two 7.5 HP pump sets (pump model APP4V1043TP) for 15 HP total, with an alternating switch to share the workload between pumps.

• Weather-Resistant Design: The package is NEMA4 compliant and weather-resistant.

• 120-Gallon Horizontal Tank: The tank is ASME and CRN certified, with a 1" outlet and an automatic tank drain.

• Electrical: The unit runs on 230V, 1-phase power with a magnetic starter.

• Convenience Features: The pumps are mounted on risers and include belt tensioners.

Pressure Lubrication System

• Gear-Driven Oil Pump: An oil pump mounted to the rear of the crankshaft creates positive oil pressure. It delivers a continuous flow of oil to each bearing point, which keeps bearings cool and extends pump life.

• Rifle-Drilled Crankshaft & Rods: Gun-drilled passages send oil directly to bearings, piston pins, and other high-friction wear points.

• Spin-On Oil Filter: An automotive-style filter keeps oil clean and simplifies oil changes.

• Analog Oil Pressure Gauge: The gauge lets operators monitor oil pressure accurately.

• Better Than Splash Lubrication: Oil goes precisely where it's needed, reducing friction, wear, and heat in high-stress, continuous-duty environments.

100% Cast Iron Pump Construction

• Cast Iron Major Components: The crankcase, cylinder heads, cylinders, connecting rods, crankshaft, and high-pressure piston are all cast iron for durability and rigidity.

• CNC-Machined Connecting Rods: Solid cast iron rods keep their strength at the crankshaft end, where aluminum rods commonly fail.

• Fully Rebuildable: Replaceable bearing inserts and wrist pins allow the connecting rod assembly to be rebuilt rather than thrown away.

• Two-Stage Pistons: Cast iron high-pressure pistons resist cylinder scoring. Aluminum low-pressure pistons provide balance and efficiency at roughly 45 PSI.

• Estimated Pump Life: 70,000 hours.

Sealing, Valves & Efficiency

• Four-Ring Piston Design: Two oil control rings and two overlapping compression rings maximize sealing, minimize blow-by and oil carryover, and extend ring life.

• Disc (Concentric Ring) Valves: These CNC-machined, surface-ground valves are more reliable than feather or reed valves. They can be removed, inspected, and reinstalled within minutes.

• Non-Oil-Absorbent Gaskets: These gaskets minimize oil leakage and reduce maintenance.

• Head Unloader Ready: The valves are engineered to support an automatic head unloader system. Unloaders relieve the intake valve to improve cooling and reduce wear in constant-run applications.

Flywheel & Drive

• Heavy-Duty Cast Iron Flywheel: The 20" flywheel's added mass increases kinetic energy, reducing amp draw and energy consumption.

• Dual B-Groove Belts: Two B-style belts provide more contact surface area for longer belt life.

• Cooling Fins: Nine large cooling fins enhance pump cooling capacity.

• Low-Speed Operation: The pump runs at 590 RPM, driven by a 1740 RPM motor.

• Maintenance: Each pump holds 2 quarts of oil. The matching service kit is EFKIT008WBS.

Not sure if a 62 CFM duplex system is the right fit for your operation or electrical service? Call Pittsburgh Spray Equipment at 888-714-1410, and our team will help you size the right compressor for your air demand.

Specifications — EP07DW120V1