2901164300 Ultra-Fine Glass-Fiber Air Oil Separator Core for GA30+ GA37 GA45 Compressor

Product Introduction

Separator load is where hidden kilowatt-hours turn into real money on the power bill. 2901164300 (cross-referenced as 1622646001 / 1622646000) is Atlas Copco’s air oil separator element for GA30+, GA37 and GA45 oil-injected screw packages, built around HV-type glass-fiber coalescing media. Discharge air loaded with fine oil mist enters the core, droplets grow through coalescence, drain back down the scavenge path, and clean air leaves the separator tank. Reported outlet oil content sits around 3–6 ppm in supplier data, while initial DP stays low until the media approaches end of life.

Letting it run past interval is the expensive choice. Differential pressure creeps up, oil top-up frequency rises, and a collapsed or saturated core can dump lubricant straight into dryers and tools. Replace on the separator DP alarm or at the 4000–8000 hour window, and open the scavenge line while the vessel is empty—blocked return, a kinked tube, or wrong insert depth will fake a bad separator even with a brand-new element seated perfectly.

Fitment notes: keep the anti-static grounding pin on the flange gasket in place (do not pry it off), torque the cover evenly, and confirm overall height, OD, flange pattern, and central bore against the removed cartridge. Machine serial and the old label beat any supplier photo. Also called oil gas separator, air oil separator element, coalescing separator cartridge