Classified Area Compliant Oil-Free Rental Air Packages

AirNow Industrial Compression Services can respond quickly to meet classified area rental air requirements.

Below are the details of a recent project in which AirNow was involved to replace a failed plant air compressor in a refinery environment. Following some package modifications the unit was inspected for electrical compliance for installation in a Class I, Division 2 Hazardous location.

Rental Air Compressor Project

Oil-Free Plant Air Replacement

Intended Area Classification: Class I, Div. 2, Group D

Project Detail

Furnished By AirNow Compression Services

• 4 Stage Oil-Free Centrifugal Air Compressor
• 4160V Main Drive Motor
• 1.5 HP Pre-Lube Pump Motor - Code M - TE Enclosure
• 110V Control Panel Power via Mounted Control Voltage Transformer
• All Wiring in EMT Rigid Conduit or Seal Tight Flexible Conduit
• Seal off fittings used on all conduit entries to Compressor Main Control Panel, Auxiliary 480v Contactor Enclosure and 480v Disconnect.
• Compressor Main Control Panel Enclosure - NEMA 4X - Purged
• Auxiliary 480v Contactor Enclosure  – NEMA 4X – Purged
• 480V Disconnect Enclosure – NEMA 4X – Purged
• Vibration Transmitter Enclosure – NEMA 4X
• Z-Purge System
• NEMA 4 Instruments and Control Devices

Furnished By Refinery Owner

• 4160/3/60 Electric Supply to Main Driver

• 480/3/60 Electric Supply for Auxiliary Power
• 4160v Main Motor Starter
• 24 SCFM @ > 80 PSI Clean Dry Instrument Air 
• Cooling Water Supply

See the pictures of unit shipping and sample of available electrical certification below.