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SKU 280861550966 Category


SEP 120 ST OIL WATER SEPARATOR FOR AIR COMPRESSORS UP TO 30 HP Only nano could give you this much performance in such a small package. The innovative STERLING filtration media in the SEP 120 ST oil water separator gives it the ability to outperform separators 4 times its size. And the benefits don’t stop there. No more maintenance. No pre-soaking. No messy carbon bags to replace. No oil collection containers to empty. No settling tanks to clean. Simply clean condensate. The SEP 120 ST is the first disposable oil water separator of its kind. With a media life of up to 8000 hours, install it and forget about it. Advanced STERLING filter media
Traditional oil water separators use activated carbon which is messy and requires pre-soaking, a long contact time, and frequent replacement. The SEP 120 ST is a new approach to oil water separation using a new, advanced, proprietary, noncarbon based media in a disposable cartridge.
Unrivaled performance – even on synthetic oils
The SEP 120 ST doesn’t need a settling tank like a traditional separator which means no sensitivity to oil or drain type. Synthetic oil? Emulsified mixture? No problem.
Easy to size
Sizing a traditional separator often requires that you consider condensate flow, ambient conditions, compressor type, oil type, pressures, temperatures, and other equipment. The Sepura oil water separators can be sized quickly and easily based on just the air or gas flow. Nothing else!
Easy to install
The nano S-Series Oil Water Separators include everything you need for installation, ready for use – no pre-soaking, small footprint for tight installations, multiple inlet connections for multiple drain points.
Easy to maintain
Service intervals up to two years, quick release lids for easy access, no special tools require, no settling tank to empty and clean, no funnels to adjust, no pre-soaking of media bags, replace the media in less thn 15 minutes and no oil collection container to dump and clean. How it Works Up to 99% of condensate discharged from the average compressed air system or gas system is water. The NANO SEP 120 ST oil water separators use STERLING filtration media to separate the oil and lubricants from the water. This innovative, technologically advanced and proprietary media is non-carbon based and 100% recycled. It actively absorbs the oil while repelling the water, providing outlet oil concentrations down to 5 ppmv or less so the remaining water can go safely down the drain(1).
Condensate from a compressor, refrigeration dryer, cooler, filter, or any other drain point can be piped directly to the SEP 120 ST oil water separator and attached using the simple push to connect fittings. First it passes through the primary filter where the condensate is depressurized and solid particles and bulk hydrocarbons are trapped within high capacity oil absorbent.
Next, the condensate passes through a deep bed of advanced STERLING filtration media which absorbs any remaining oil.
Simple and effective – no messy carbon, no settling tanks, no oil containers. Just clean condensate. (1)Before disposing of any condensate, test it to ensure you are in compliance with all local regulations regarding oil and other contaminants.
Sizing & Specifications
Maximum Capacity (1) 120 scfm
204 Nm3/hr
Connection Sizes Inlet 1/2” Push Fit
Outlet 3/4” Push Fit
Dimensions Height 19.7” (500 mm)
Width 8.5” (216 mm)
Depth 10.1” (257 mm)
Weight 6.0 lbs (2.7 kg)
Inlet Pressure Maximum 232 psig (16 bar)
Inlet Temperature Minimum 35 ˚F (1.7 ˚C)
Maximum 110˚ (43.3˚C)
Expected Media Life
At 120 scfm (1) 5000 hours (7 months)
Maximum Oil Carry Over
(at end of media life) < 20 ppmv (1)Sizing assumes an oil flooded compressor using mineral or synthetic lubricant with a maximum oil carry-over of 5 mg/m3 or less. Contact n-psi for sizing assistance when using with PAG compressor lubricants.

Additional information

Weight 6 lbs



SEP 120 ST


Does not apply


Dear valued customers,

We normally keep all our inventory in stock. However, due to backorders from many of our vendors and parts shortages, some items that we have listed may not be in stock or could have a long lead time although they show as available on our store. If you need your items right away, please call or e-mail to ensure availability.