Available in flows ranging from 2.5 nm³/min. (90 scfm) to 141.6 nm³/min. (5,000 scfm), Ingersoll Rand HL heatless desiccant dryers are designed to ensure a constant -40°C (-40°F) or optionally -70°C (-100°F) pressure dew point, virtually eliminating costly interruption of production due to moisture. Clean air is further assured by use of strategically placed filters: a pre-filter to remove oil and contaminants in air entering the dryer, and an after-filter to make sure that only clean dried air exits the dryer. As an additional design precaution, the dryer’s switching valves are normally open and purge valves normally closed to allow air flow through the dryer in case of power loss.

A standard feature of every Ingersoll Rand heatless desiccant dryer is its NEMA 4 package, providing increased protection of electrical components, as well as advanced digital dryer controls and displays. It includes a NEMA 4 electrical enclosure to protect against water and condensation, a UL/ULC panel and an advanced digital electronic controller. In addition, every HL comes standard with a compressor interlock feature. This substan tially prolongs compressor life and improves reliability.

While reliability has been a key focus of its design, the Ingersoll Rand HL heatless desiccant dryer is also a leader in its class for energy efficiency and the health and safety of operating personnel and the environment