2901007000 Heavy-Duty Oil Separator for GA45 GA55 GA75 Screw Compressor

Product Introduction

Oil carry-over and rising differential pressure are the two bills this kit keeps off your shop floor. 2901007000 is Atlas Copco's separator kit for oil-injected rotary screw compressors, listed for GA45, GA55, GA75 and configuration-dependent GA30/GA37 frames, crossing to 1613730600 in parts catalogs . The coalescing element strips fine oil mist from discharge air inside the separator tank; separated lubricant drains back to the sump while clean air moves downstream to dryers and valves.

Running the core past interval quietly taxes the motor—DP climbs, lube top-up frequency rises, and oil starts showing at the farthest outlet. Replace on the separator differential alarm or scheduled hours, and treat the scavenge line as part of the job. A blocked or misrouted return tube fakes a bad separator even with a fresh element seated perfectly.

Open the kit on a clean bench, fit every seal from the set, and seat the flange evenly—reused gaskets and uneven bolt torque cause most post-service leaks. Match overall height, OD, flange pattern, central bore, and anti-static grounding to the removed assembly before dispatch; machine serial decides the exact contents . Also called air oil separator kit, oil gas separator cartridge, coalescing separator element.