Description

Powerex STD Series 3 HP Duplex Oil-Less Scroll Air Compressor – 80 Gallon

The Powerex STD Series 3 HP Duplex Oil-Less Scroll Air Compressor is designed for applications requiring continuous, redundant, oil-free compressed air with quiet operation and high reliability. Featuring two independent oil-less scroll compressor pumps mounted on an 80-gallon air receiver, the STD Series delivers automatic load sharing and uninterrupted air supply for critical clean-air environments.

The duplex configuration allows each scroll pump to operate independently in a lead/lag sequence, extending component life while ensuring backup capacity is always available. During periods of increased demand, both compressors operate together to maintain stable system pressure.

This system is ideal for medical, dental, laboratory, pharmaceutical, food processing, and clean manufacturing applications where air purity and uptime are essential.

Clean, Quiet, Oil-Free Duplex Performance

The dual 3 HP oil-less scroll compressors operate with extremely low vibration and sound levels, making them suitable for installation in occupied or noise-sensitive environments.

All systems come standard with electronic condensate drains, automatically removing moisture from the air receiver and protecting downstream equipment without manual intervention.

Because the system is completely oil-free, users benefit from:

• No oil changes

• No oil carryover

• No oil-water separators required

• Reduced downstream filtration requirements

Airflow Performance by Pressure

The STD Series 3 HP duplex system delivers dependable airflow for clean-air applications:

• 116 PSI (Standard Pressure): approximately 17.6 SCFM

• 145 PSI (High Pressure): approximately 14.2 SCFM

This allows customers to select standard or high-pressure operation while maintaining oil-free air quality.

Voltage Options

Customers may select the voltage configuration that matches their facility power:

• 230V / Single Phase (STD1303 configuration)

• 208V / Three Phase

• 230V / Three Phase

• 460V / Three Phase 

Each system includes UL-listed magnetic starters and UL508A-listed control panels for safe, code-compliant operation.

Dryer Options

The STD Series 3 HP duplex system is available with multiple air treatment configurations:

• No Dryer – For facilities with existing air treatment

• Refrigerated Air Dryer – Removes moisture for general clean-air protection

• Desiccant Air Dryer – Provides ultra-dry air for critical applications requiring very low dew points

The desiccant dryer option is ideal for laboratory, medical, and process environments where moisture control is critical.

Standard Features & Benefits

• Duplex 3 HP oil-less scroll compressors

• 80-gallon ASME air receiver

• Automatic lead/lag sequencing

• Electronic condensate drains (standard)

• Optional refrigerated or desiccant dryer

• 100% oil-free compressed air

• Quiet, low-vibration operation

• Designed for continuous-duty service

• Built-in redundancy for critical applications

Typical Applications

• Medical and dental facilities

• Laboratories and research environments

• Pharmaceutical and food processing

• Instrumentation and control systems

• Clean manufacturing operations

Why Buy from Compressed Air Advisors Online?

Compressed Air Advisors Online is America’s choice for compressed air solutions, offering nationwide expertise and premium oil-free systems from trusted manufacturers like Powerex. Our team helps customers properly select voltage, pressure, and air treatment options so their system performs exactly as intended from day one.

Click Here To Open The Powerex STD Brochure