Moisture Separators for Air Compressors

A moisture separator removes condensed water and liquid contaminants from a compressed air stream before they reach downstream equipment, piping, or processes. By eliminating moisture, these devices prevent corrosion, equipment damage, and product contamination. High-efficiency centrifugal or coalescing separator designs — like those used in ZEKS and Gardner Denver dryers — achieve up to 99% liquid removal efficiency.

The best water separator depends on your system's pressure range, flow capacity, and application requirements. For standard industrial systems (up to 300 psig), the ZEKS HeatSink or Gardner Denver XGCY Series with 99% centrifugal moisture separation are excellent choices. For high-pressure applications up to 6,000 psig, the ZEKS High Pressure SS Series with a full stainless steel air circuit is the preferred solution.

Moisture separators are available from 10 SCFM for small shop applications up to 19,200 SCFM for large industrial facilities. The ZEKS HeatSink and Gardner Denver XGCY Series both cover this broad range, including modular multi-unit configurations for requirements exceeding 3,000 SCFM, ensuring scalability and built-in redundancy for continuous operation.

Standard refrigerated moisture separators deliver a 38°F (3°C) pressure dew point, which is sufficient for most industrial applications. Select ZEKS HeatSink models also support -40°F, -80°F, and -100°F dew points for applications requiring ultra-dry air. Consistent dew point performance is maintained regardless of changes in air load or ambient temperature.

Yes. The ZEKS High Pressure SCFX Series supports up to 680 psig, while the SS Series handles pressures as high as 6,000 psig with a complete stainless steel air circuit. These are designed for specialized equipment and processes where standard dryers operating below 300 psig are insufficient. ASME Section VIII Division 1 coded pressure vessels are standard across these models.

Cycling refrigerated dryers use thermal mass storage technology to cycle the refrigeration system off during low air demand periods while continuing to remove moisture. This true-cycling operation reduces energy consumption by up to 80% compared to non-cycling dryers, making them ideal for facilities with variable production schedules, shift-based operations, or seasonal demand fluctuations.