Air dryers

If your pipework runs anywhere cooler than the compressor discharge, which is everywhere, water will condense inside it. In Karachi, Dubai or Muscat a compressor without a dryer puts litres of water a day into your machines.

The temperature at which water starts condensing out of the air at working pressure. If your pipework never gets colder than the dew point, you never get liquid water.

Refrigerant gets you +3 °C and covers most factory air. Desiccant gets you −40 °C and is needed if pipework runs outdoors, through a cold store, or feeds instruments and pharmaceutical processes.

A refrigerant dryer uses 1–2% of the compressor's power. A heatless desiccant dryer consumes 15–20% of your compressed air as purge, which is why the heated and blower-purge designs exist.

Size on the compressor's actual delivered flow, then correct for your inlet temperature and ambient. A dryer rated at 25 °C loses roughly a third of its capacity at 45 °C, which is why undersized dryers are so common in the Gulf.

Usually a failed drain, a blocked condenser, or a dryer sized at 25 °C conditions and installed in a 45 °C plant room. We measure the achieved dew point rather than assuming the dryer works because its light is on.

After the receiver, not before it. The receiver drops the air temperature and knocks out a large share of the water first, so the dryer sees a smaller load and lasts longer.

Three to five years with correct pre-filtration and even flow distribution. Oil carry-over from a worn separator is what kills a bed early, usually within eighteen months.

Yes, and it is a straightforward retrofit. We size from your compressor's flow and pressure and fit it with the correct pre and after filtration, usually in half a day.

Drain checks and condenser cleaning at every service, dew point measured and recorded, and on desiccant units a bed condition check. Condenser cleaning is what keeps a refrigerant dryer alive through a Gulf summer.