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PHx 10–375

Compact heatless adsorption dryers designed for critical compressed-air applications requiring consistently dry air. The PHx 10–375 range delivers a pressure dew point down to -40°C, with low pressure drop, approximately 15% purge-air consumption, and a space-saving vertical design for machine-side or panel mounting.
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Introduction

Atcorp offers PHx 10–375 heatless adsorption dryers for applications where reliable low-dew-point compressed air is essential. With a compact vertical design, high-grade desiccant, low pressure drop and Purge Economizer technology, the range combines dependable drying performance with efficient operation and straightforward installation.

Key Benefits

Consistent -40°C Dew Point
High-Grade Desiccant
Low Noise
Low Purge Consumption
Robust Construction
Digital Controller

Why Choose Phx 10–375 Adsorption Dryers?

Moisture in compressed air can cause corrosion, contamination, equipment wear and production problems. Adsorption dryers address these issues by passing compressed air through a desiccant that captures water vapour.

 

The PHx 10–375 uses a two-tower heatless adsorption process. While one tower dries the incoming compressed air, the other tower regenerates its saturated desiccant using dry, expanded purge air. The towers then alternate automatically to maintain continuous dry-air delivery.

Model PHx 10 PHx 20 PHx 30 PHx 45 PHx 60 PHx 100 PHx 125 PHx 200 PHx 250 PHx 300 PHx 375
Inlet (l/s) 4.7 9.4 14.2 21.2 28.3 47.2 59 94.4 118 141.6 177
PDP (°C) -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40
Pressure drop (bar) 0.18 0.1 0.16 0.15 0.15 0.25 0.25 0.23 0.25 0.28 0.3
Dimensions (mm) Height 1038 963 1127 999 1192 1603 1913 1615 1925 1615 1925
Width 330 371 371 497 523 439 439 449 449 457 457
Depth 150 213 213 313 313 372 372 582 582 764 764
Weight (kg) 21 29 39 49 61 106 119 214 238 256 286
Connections (dryer only) G1/2" G1/2" G1/2" G1/2" G1" G1" G1" G1 1/2" G1 1/2" G2" G2"
Connections (with inlet/outlet filters) G 3/4" G 3/4" G 3/4" G 3/4" G 1" G 1 1/2" G 1/2" G 2" G 2" G 2" G 2"
Inlet pressure correction factors
PSI (g) 60 80 100 120 140 160 180 200 220
Bar (g) 4.1 5.5 6.9 8.3 9.7 11 12.4 13.8 15.2
Correction factor 0.65 0.83 1 1.18 1.37 1.52 1.7 1.87 2.05
Inlet temperature correction factors
°F 90 95 100 105 110 115 120
°C 32 35 38 41 43 46 49
Factor 1.35 1.16 1 0.85 0.74 0.64 0.56

Step 1 – Moist Compressed Air Entry
Compressed air containing water vapour enters the active adsorption tower.

 

Step 2 – Moisture Adsorption
The air passes through high-grade desiccant, where moisture is captured.

 

Step 3 – Dry Air Delivery
The treated air leaves the active tower with a pressure dew point down to -40°C.

 

Step 4 – Desiccant Saturation
As the drying cycle continues, the desiccant gradually becomes saturated with moisture.

 

Step 5 – Tower Regeneration
The second tower is regenerated using dry, expanded purge air.

 

Step 6 – Purge Optimization
The Purge Economizer adjusts the amount of purge air according to the actual moisture load.

 

Step 7 – Tower Switching
Once regeneration is complete, the towers switch roles automatically.

 

Step 8 – Continuous Drying
The regenerated tower resumes drying while the other tower enters regeneration.

Constant -40°C Pressure Dew Point

The PHx range provides a pressure dew point down to -40°C / -40°F, helping protect critical compressed-air systems from moisture-related problems.

 

Compact Vertical Design

The vertical configuration is designed to minimize installation space and can be installed machine-side or in suitable panel-mounted applications.

 

Approximately 15% Purge Consumption

Purge-air consumption is limited to approximately 15%, helping reduce compressed-air losses during regeneration.

 

Purge Economizer

The Purge Economizer adapts purge-air consumption to the actual moisture load, which can vary with airflow, temperature, pressure and dew point. This helps avoid unnecessary purge-air consumption.

 

Low Pressure Drop

Pressure drop is below 0.3 bar across the published model range, helping minimize the energy required to maintain downstream pressure.

 

High-Grade Desiccant

The PHx uses high-grade activated alumina and molecular sieve desiccant to effectively adsorb moisture from compressed air.

 

Reliable Two-Tower Operation

The alternating adsorption and regeneration cycle provides continuous dry compressed air while maintaining stable dryer operation.

 

Low Noise Operation

The published noise level is below 70 dBA, supporting installation in a range of industrial environments.

 

Robust Construction

The dryer is designed for reliable operation in demanding industrial environments with a focus on long-term performance.

 

Digital Controller

An intuitive digital controller simplifies operation and incorporates Purge Economizer functionality.

 

PDP Sensor Option

A pressure dew-point sensor is available as an option for applications requiring direct dew-point monitoring.

Drying Technology

  • Heatless adsorption
  • Two-tower operation
  • -40°C pressure dew point
  • Dry, expanded purge-air regeneration
  • High-grade desiccant

Energy Management

  • Approximately 15% purge-air consumption
  • Purge Economizer
  • Low pressure drop
  • Purge optimization according to moisture load

Mechanical Design

  • Compact vertical construction
  • Machine-side installation capability
  • Panel-mounting suitability
  • Robust industrial design
  • Low-noise operation

Control & Monitoring

  • Digital controller
  • Purge Economizer
  • Optional PDP sensor

Electrical

  • 230 V
  • 50/60 Hz

Industrial Applications

PHx 10–375 adsorption dryers are suited to applications where compact installation, reliable low-dew-point air and controlled purge consumption are important.
Laboratories & Technical Facilities
Suitable for compressed-air systems requiring a low pressure dew point and compact equipment arrangement.
Electronics Manufacturing
Helps protect sensitive pneumatic and production equipment from moisture-related problems.
Machine Tools
Provides dry compressed air for pneumatic systems associated with CNC machines and precision equipment.
Paint & Surface Finishing
Helps minimize moisture-related issues in pneumatic equipment and selected finishing applications.
Food & Beverage
Can support appropriate production and utility-air applications where dry compressed air is required.

Frequently Asked Questions

Find answers about PHx 10–375 heatless adsorption dryers, pressure dew point, capacity, purge consumption, installation, controls and applications.
The PHx 10–375 is a range of compact heatless adsorption dryers designed to deliver consistently dry compressed air for critical applications.
The PHx 10–375 provides a pressure dew point down to -40°C / -40°F.
The largest model, PHx 375, has a published inlet flow of 177 l/s, equivalent to approximately 375 CFM at 7 barg
Yes. The range can be considered for Indian manufacturing, machine-tool, pharmaceutical, electronics, food-processing and other industrial applications requiring reliable low-dew-point compressed air.
Selection should consider required airflow, operating pressure, inlet temperature, ambient temperature, required pressure dew point, pressure drop and available installation space. The published pressure and temperature correction factors should also be considered when sizing the dryer.
Yes. Atcorp can help Indian customers evaluate their compressed-air drying requirements and identify the appropriate PHx 10–375 model based on airflow, operating pressure, dew point, temperature and installation requirements.

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