Compressed air dryer heatless are a type of desiccant dryer used to remove moisture from compressed air systems. They operate without the use of external heat sources, making them energy-efficient and cost-effective. The heatless range of compressed air dryer typically refers to a series of models or configurations available within this category. The specific features and performance characteristics can vary among different manufacturers, but here are some general aspects you may find in a heatless compressed air dryer range:

1. Working Principle: Heatless dryers use a twin-tower design filled with a desiccant material such as activated alumina or silica gel. One tower is in drying mode, while the other is in regeneration mode. The towers alternate between these two modes to continuously dry the compressed air.

2. Drying Process: Moist air enters the drying tower, where the desiccant material adsorbs the moisture, resulting in dry air leaving the tower. The dried air then flows out of the dryer for use in the compressed air system.

3. Regeneration Process: As one tower is in drying mode, the other tower is undergoing regeneration. Regeneration involves purging the moisture from the desiccant material using a small portion of dried air. This purged, moisture-laden air is vented outside the system, and the desiccant is prepared for the next drying cycle.

4. Control System: Heatless dryers are equipped with a control system to manage the alternating drying and regeneration cycles. This system ensures efficient operation by monitoring pressure, dew point, and switching between towers at the right intervals.

5. Capacity Range: compressed air dryer heatless are available in various capacity ranges to suit different compressed air system sizes. The capacity is typically specified in terms of the maximum flow rate or the volume of compressed air the dryer can handle.

6. Dew Point: The dew point is a crucial parameter that determines the dryness of the compressed air. Heatless dryers can achieve dew points ranging from -20°C to -40°C (-4°F to -40°F) or even lower, depending on the design and specifications of the specific dryer model.

7. Optional Features: Some compressed air dryer heatless may offer additional features such as integrated filters for removing particulate matter or oil, advanced control systems for energy optimization, or monitoring and alarm systems to indicate system faults.

It's important to consult the manufacturer's specifications and documentation for precise information on the compressed air dryer heatless range you are considering, as features and capabilities can vary among different brands and models.