Liberty Systems Nitrogen Generator Filters

[Frankman691]

My company has a complete Liberty Systems nitrogen system that has very specific filters, we just bought a years worth of filters for $8000 does anyone know where I can find like filters that are not sold by Liberty Systems or that aren't as expensive?

 

[EngrPaper]

Type? Filtration level? Filter Area? Connection size and type? Design Pressure and Temp?

 

[georgeverghese]

5years of these "special" oil-air filters = $40k. For that, you could probably replace those cheap oil lubricated air compressors you've got now with oil free screw compressors, and then you wont need ANY of these special filters.