The Zero-Purge Blower-Heated Regenerative Desiccant Air Dryer is developed on the basis of the low-purge blower-heated regenerative desiccant air dryer, with the addition of an intercooler.
During the heating stage, ambient air is drawn in by the blower and heated by the heater. The heated air then passes through the regeneration tower to heat the desiccant and desorb the adsorbed moisture.
During the cooling stage, the air circulates continuously through the intercooler and regeneration tower in a closed-loop circuit, cooling the regenerated desiccant bed without using any dry product air. As a result, no compressed air is consumed throughout the entire regeneration process, maximizing compressed-air utilization and improving overall system efficiency.
To ensure stable performance and efficient operation, the Blower & Zero Purge Adsorption Dryer should be used under the following recommended conditions:
- Applicable fluids: Compressed air, non-corrosive air
- Rated inlet pressure: 0.7 MPa
- Optional inlet pressure range: 0.6–1.0 MPa, customizable
- Rated inlet temperature: 10–30°C
- Maximum inlet temperature: ≤ 40°C
- Inlet air dew point: ≤ 25°C
- Regeneration gas consumption: 0%
- Outlet pressure dew point: -20°C / -40°C optional
- Rated ambient temperature: 35°C
- Usable ambient temperature range: 2–40°C
- Cooling water temperature: ≤ 32°C
- Cooling water pressure: 0.2–0.6 MPa
For the best drying effect and longer adsorbent service life, the dryer should be installed with proper pre-filtration and operated under stable inlet conditions. This helps protect downstream equipment, maintain consistent air quality, and improve long-term system reliability.
| Model | Airflow Capacity (m³/min) | Air Connection Size | Installed Power (kW) | Overall Dimensions (L × W × H, mm) |
|---|
| HRB-ZW/A100 | 13.5 | DN65 | 12.1 | 1955 × 1040 × 2350 |
| HRB-ZW/A120 | 17.5 | DN65 | 16.7 | 2090 × 1102 × 2311 |
| HRB-ZW/A150 | 21.5 | DN65 | 19.5 | 2098 × 1102 × 2511 |
| HRB-ZW/A180 | 25.0 | DN80 | 19.5 | 2148 × 1197 × 2437 |
| HRB-ZW/A200 | 28.5 | DN80 | 22.8 | 2293 × 1250 × 2500 |
| HRB-ZW/A250 | 32.0 | DN80 | 27.8 | 2179 × 1302 × 2766 |
| HRB-ZW/A300 | 37.0 | DN100 | 36.5 | 2412 × 1560 × 2792 |
| HRB-ZW/A350 | 41.5 | DN100 | 36.5 | 2477 × 1500 × 2822 |
| HRB-ZW/A400 | 45.0 | DN100 | 36.5 | 2477 × 1500 × 2825 |
| HRB-ZW/A450 | 50.0 | DN100 | 36.5 | 2480 × 1500 × 2825 |
| HRB-ZW/A500 | 55.0 | DN125 | 57.5 | 3030 × 1940 × 2958 |
| HRB-ZW/A550 | 60.0 | DN125 | 57.5 | 3030 × 1940 × 3158 |
| HRB-ZW/A600 | 65.0 | DN125 | 57.5 | 3030 × 1940 × 3160 |
| HRB-ZW/A700 | 75.0 | DN125 | 57.5 | 3030 × 1940 × 2888 |
| HRB-ZW/A800 | 85.0 | DN125 | 63.5 | 3030 × 1970 × 3046 |
| HRB-ZW/A900 | 95.0 | DN150 | 77.5 | 3306 × 2189 × 3078 |
| HRB-ZW/A1000 | 110 | DN150 | 77.5 | 3356 × 2150 × 3078 |
| HRB-ZW/A1200 | 120 | DN150 | 77.5 | 3570 × 2319 × 3130 |
| HRB-ZW/A1400 | 145 | DN200 | 105.5 | 3668 × 2548 × 3330 |
| HRB-ZW/A1600 | 165 | DN200 | 143 | 3590 × 2800 × 3380 |
| HRB-ZW/A1800 | 185 | DN200 | 146.5 | 4356 × 2708 × 3436 |
| HRB-ZW/A2100 | 210 | DN200 | 230.5 | 4400 × 2800 × 3440 |
| HRB-ZW/A2600 | 260 | DN250 | 257.5 | 4800 × 3000 × 3450 |
Note:For air volumes above 260 m³/min or special specifications (materials, temperature, or pressure), please contact our company or authorized dealers. Data is for reference only and may change without prior notice.
The Blower & Zero Purge Adsorption Dryer is widely used in industrial applications that require continuous dry compressed air, low operating cost, and reliable long-term performance. Its zero purge design makes it especially suitable for systems where compressed air savings and energy efficiency are important.
General Manufacturing
Provides stable low-dew-point compressed air for production lines, pneumatic equipment, and centralized compressed air systems, helping improve equipment reliability and reduce moisture-related downtime.
Electronics and Precision Industries
Suitable for processes that require clean, dry air to protect sensitive components, improve production stability, and reduce the risk of moisture contamination.
Food and Beverage Processing
Used in packaging, conveying, and automated production systems where dry compressed air is needed to support consistent process performance and protect product quality.
Chemical and Petrochemical Plants
Supports instrumentation air, control systems, and process air applications in environments where reliable drying performance and continuous operation are essential.
Pharmaceutical Manufacturing
Provides dry compressed air for production and packaging systems that require stable air quality and dependable long-duty operation.
Large Industrial Air Systems
With a wide flow range and zero compressed air consumption during regeneration, this dryer is particularly well suited for large-scale compressed air systems where energy savings and operational efficiency are key priorities.
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