Filtration & Drying

Refrigerated Air Dryers

Protect Your Molecular Sieve — Consistent +3°C to +10°C Pressure Dew Point

Key Features

Why This Accessory Matters

01

PSA-Integrated Control

Dryer control communicates directly with PSA generator for coordinated operation and energy savings.

02

Stable Dew Point

Hot-gas bypass valve maintains ±1°C PDP regardless of ambient temperature and load variations.

03

Energy-Saving Design

Low ΔP heat exchangers and high-efficiency compressors reduce total operating cost.

04

Corrosion Protection

Cupronickel or stainless steel heat exchangers resist corrosion from condensate.

Technical Specifications

Detailed Specifications

Dew Point+3°C to +10°C pressure dew point (PDP)
Flow Range1–500 Nm³/min
RefrigerantR-404A (standard), R-513A (low GWP optional)
Inlet Temperature≤ 60°C (140°F)
Ambient Temp+2°C to +50°C
ConnectionG 1/2" to DN 150, flanged
Max Pressure16 bar standard, 40 bar on request
CoolingAir-cooled (standard), water-cooled (optional)
FAQ

Frequently Asked Questions

Why does a PSA nitrogen generator need a refrigerated air dryer?

The molecular sieve (CMS) used in PSA nitrogen generators is highly sensitive to moisture. Wet air entering the CMS bed reduces its adsorption capacity and shortens sieve life. A refrigerated air dryer removes condensate before the air reaches the PSA skid.

What dew point do I need for my PSA system?

For standard PSA nitrogen generators, +3°C to +10°C PDP is sufficient. For applications requiring -40°C PDP or lower, a desiccant dryer is recommended instead.

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