Moisture is one of the most common — and most overlooked — problems in compressed air systems across Metro Vancouver and BC. When air is compressed, water vapour concentrates. As that air cools in your distribution system, it condenses into liquid water.
The result? Rust in pipes, damaged tools, contaminated spray finishes, and frozen outdoor lines in winter.
An air dryer solves the problem before it starts — but not every business needs the same type.
Refrigerated Air Dryers — the most common type for commercial and industrial use. They cool compressed air to approximately 3°C, causing moisture to condense and drain away. Cost-effective and reliable for most applications.
Desiccant Air Dryers — use hygroscopic material to achieve pressure dew points as low as -40°C. Required for pharmaceutical, instrumentation, and outdoor lines subject to freezing temperatures.
✅ Seeing rust, corrosion, or water in your air lines or tools
✅ Spray painting (moisture causes fish-eye defects)
✅ Operating in food, pharmaceutical, or lab environments
✅ Running outdoor distribution lines in BC winters
Running light-duty, intermittent applications with a properly drained receiver in a controlled indoor environment
For the vast majority of BC commercial and industrial operations, a refrigerated air dryer is a cost-effective investment that pays for itself in reduced tool maintenance and better output quality.
Motion Air Compressors supplies and installs both refrigerated and desiccant air dryers from leading manufacturers, sized correctly for your system’s actual flow and the specific requirements of your BC operating environment. We come to you across Greater Vancouver, the Fraser Valley, and throughout BC.
How do I know if I need a refrigerated or desiccant dryer?
For most commercial and industrial applications in BC — including automotive, woodworking, manufacturing, and general industrial use — a refrigerated dryer is sufficient and cost-effective. Desiccant dryers are needed when very low dew points are required, such as pharmaceutical, laboratory, or outdoor lines subject to freezing temperatures.
My compressor has a built-in dryer — is that sufficient?
Many compressors include a basic moisture separator rather than a full refrigerated dryer. A separator removes liquid water but does not lower the pressure dew point the way a refrigerated dryer does. For applications where air quality matters, a standalone dryer is usually recommended.
How often does an air dryer need to be serviced?
Refrigerated dryers should be inspected annually — checking refrigerant charge, condenser cleaning, drain function, and performance. Desiccant dryers require desiccant replacement at manufacturer-specified intervals, typically every 1–3 years depending on operating conditions.
Ready to get started? Contact Motion Air Compressors today — we come to you across Metro Vancouver, the Fraser Valley, Whistler, Vancouver Island, and throughout BC.
