Air Quality
Compressed Air Condensate Collection, Drains & Treatment
Drains that actually drain, oil-water separators sized to your compressor, and discharge that stays on the right side of the code. The unsexy part of a compressed air system that quietly protects everything downstream.
Scope
What Condensate Management Covers
Where Condensate Forms
Aftercooler, wet receiver, dryer, filter housings, drip legs - all need a drain.
Drains
Electronic zero-loss or timed drains sized to the flow at each collection point.
Oil-Water Separation
Oil-water separators that capture compressor oil so the water discharge stays legal.
Disposal
Discharge routed to code-approved locations, not a random floor drain.
Failed Drain Consequences
Water in the receiver, wet dryer, wet plant air, and premature filter loading.
Dryer & Receiver Connections
Drains sequenced correctly between compressor, wet receiver, dryer, and filtration.
Maintenance
Drain function verified on every PM. Separator media swapped on schedule.
Process
How We Approach It
- Step 1
1. Site Walk
Every drain point identified - some plants have condensate forming in places no one has looked at in years.
- Step 2
2. Drain & Separator Plan
Right drain at each point, oil-water separator sized to compressor output, discharge route.
- Step 3
3. Install
Drains, separator, piping to discharge, and clear labeling for future service.
- Step 4
4. Verification
Confirm every drain operates, timing is correct, and no compressed air escapes with the water.
- Step 5
5. PM Integration
Drain checks added to the scheduled PM plan so failure gets caught early.
Perspective
Why Drains Are The First Thing To Fail
Drains are cheap parts that live in a hot, wet, oily environment and rarely get looked at. When one sticks open, the compressor bleeds air. When one sticks shut, water backs up into the receiver or dryer. Either failure costs more than the drain did. A five-minute drain check on every PM catches almost all of it.
FAQ
Frequently Asked Questions
+Where does condensate come from?
Compressed air holds a lot of water. As it cools in the aftercooler, receiver, and dryer, that water drops out as liquid condensate. On a typical rotary screw compressor, condensate forms at the aftercooler outlet, the wet receiver bottom, the dryer separator, filter housings, and drip legs in the piping.
+What kind of drains do you install?
Electronic zero-loss or timed drains where the condensate forms - at aftercoolers, receivers, dryers, filter housings, and low points in piping. Zero-loss drains save compressed air; timed drains are simpler but discharge some air with the water.
+Why does condensate need to be treated?
Compressed air condensate carries oil from the compressor (unless the compressor is oil-free). Most jurisdictions do not allow that mixture to go straight to a floor drain or storm sewer. An oil-water separator captures the oil so the water can be discharged legally.
+What happens when drains fail?
Condensate backs up into the receiver or filter, gets pushed into the dryer or downstream piping, and you end up with wet air at the tools. Failed drains are one of the most common preventable causes of wet plant air.
+Do you retrofit condensate treatment on existing plants?
Yes. Many older plants have manual valves that no one opens, or drains dumping to a floor drain without treatment. We add oil-water separators, replace failed drains, and route discharge correctly.
+How often do drains and separators need maintenance?
Drains: verify function on every PM visit. Separator media typically gets swapped once or twice per year depending on load and compressor type. We track this on the PM plan.
Where We Work
Serving NC, SC & Augusta, GA
Wet Air Or Failed Drains?
Send us your compressor and the symptoms. We will walk the drain points and quote the fix.