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CPX Non-Cycling Refrigerated Air Dryer By Chicago Pneumatic

12-4238CFM Non-Cycling Refrigerated Dryers


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PSI: 232 (Pressure)
Outlet CFM Max: 4238 (Flow)
Inlet CFM Max:0 (Inlet Flow)
Max PSI: 232
Volts: 115, 230, 460
Phase: 1, 3
Available Options: Brazed Plate Heat Exchanger

Dimensions & Weight

NPT IN: .75"
NPT OUT: .75"
(A) Length: 14"
(B) Width: 20"
(C) Height: 18"


The CPX Refrigerated Air Dryers For All Applications

Sized to handle 12 to 2966cfm, the CPX dryers fit any application. Extremely quiet and reliable CPX dryers deliver dry air with minimal pressure drop. These dryers are machines designed for treating compressed air. By using the refrigerant characteristics of certain fluid, these dryers lower the temperature of the compressed air, causing water vapor to condense and discharge prior to it entering any distribution system.

Professional Air Quality

  • Pressure Dew Point 3-7℃ 
    • High-efficiency plate-fin heat exchanger
    • Professional water removing function
    • Low relative humidity in outlet air
  • Professional Energy Efficiency
    • 50% less energy consumption compared to shell and tube type dryers
    • Optimized refrigeration system
  • Environment Safety
    • Low (GWP) global warming potential
    • Low (ODP) ozone depletion potential
    • Energy saving
  • Reliable
    • Industrial grade refrigeration compressor
    • Digital controller and PDP display
    • Optimized piping with 3-stage leak test


Standard Features:

  • Dryer operation completely automatic
  • Easy-to-read dewpoint indicator gauge
  • Low current requirement- can share electrical lines
  • Zero Loss Condensate Drain
  • Inlet and Outlet on same side
  • Eight Foot Power Cord
  • 1 Year Full Package Warranty


Refrigerant Circuit

The refrigerant circuit compresses and expands the refrigerant medium in a circular system in order to efficiently transfer heat from the wet compressed air to the atmosphere. The CPX dryer refrigerant circuit is designed as whole and only uses components of high and reliable quality, supplied by globally recognized manufacturers.


  1. Refrigerant Separator
    1. Ensures only gas can enter
  2. Refrigerant Compressor
    1. Refrigerant is brought to high pressure and a high temperature
  3. Digital Controller
    1. Temporarily turns off the condenser fan when the load is low
  4. Max Pressure Switch
    1. Refrigerant gas never exceeds maximal pressure
  5. Condenser Fan
    1. A constant flow of ambient air to the air condenser
  6. Condenser 
    1. Cools the refrigerant to a liquid to be more effective
  7. Capillary Filter
    1. Protects the expansion device from harmful particles
  8. Capillary Tube
    1. Reduces the pressure to increase cooling capacity, also stabilizes the dewpoint of the dryer

Additional information

Weight N/A
Dimensions 14 × 20 × 18 in

12CFM, 21CFM, 30CFM, 42CFM, 64CFM, 83CFM, 106CFM, 127CFM, 145CFM, 184CFM, 230CFM, 272CFM, 353CFM, 424CFM, 530CFM, 636CFM, 848CFM, 1059CFM, 1235CFM, 1589CFM, 1765CFM, 2204CFM, 2471CFM, 2966CFM, 3496CFM, 4238CFM


.75", 1", 1.5", 2", 2.5", 3", 4" Flange, 6" Flange

Phase and Volt

115 Volt / 1 Phase, 230 volt / 1 Phase, 460 volt / 3 phase

12 Month Standard Manufacturers Warranty*

*Exclusions may apply.

-- Extended warranty may be available, consult documentation for details. --

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