Regenerative desiccant dryers are commonly used in industrial settings worldwide. These dryers employ a desiccant material to absorb water vapor from the air flow. Heatless desiccant dryers regenerate the desiccant in one tower using a small quantity of dried air, while the other tower dries the compressed air.
Our SPDP Series heatless desiccant dryers offer extremely low dew points, are designed to minimize energy and process waste, and feature a user-friendly interface.
Features
Dual-Vessel Configuration
-Two pressure vessels operate in parallel, alternating between drying and regeneration cycles to maintain continuous air purification.
Adsorption Technology
-Utilizes ⅛” activated alumina to effectively adsorb water vapor from compressed air, ensuring dry and clean air output.
Sequential Operation
-Compressed air flows through one tower for drying while the other undergoes regeneration using a portion of treated air, expelled through silencers.
Purge Air Management
-Controls purge air flow through integrated valves to efficiently regenerate desiccant beds, minimizing operational costs.
Automatic Cycling
-Alternates between drying and regenerating beds automatically, ensuring uninterrupted operation unless manually shut down.
Pressure Equalization
-Includes re-pressurization step to prevent desiccant bed fluidization and dusting, maintaining long-term performance and reliability.
Contaminant Protection
-Recommends installation with high-efficiency ProPure filters to protect desiccant material from contaminants, ensuring consistent adsorption efficiency.
Model | Voltage | CFM @ 100 PSI | Max Pressure | Weight (lbs) |
---|---|---|---|---|
SPDP80 | 115/1/60 | 80 CFM | 150 PSIG | 132 |
SPDP100 | 115/1/60 | 100 CFM | 150 PSIG | 167 |
SPDP120 | 115/1/60 | 120 CFM | 150 PSIG | 167 |
SPDP160 | 115/1/60 | 160 CFM | 150 PSIG | 262 |
SPDP200 | 115/1/60 | 200 CFM | 150 PSIG | 262 |
SPDP250 | 115/1/60 | 250 CFM | 150 PSIG | 384 |
SPDP300 | 115/1/60 | 300 CFM | 150 PSIG | 384 |
SPDP400 | 115/1/60 | 400 CFM | 150 PSIG | 539 |
SPDP500 | 115/1/60 | 500 CFM | 150 PSIG | 715 |
SPDP650 | 115/1/60 | 650 CFM | 150 PSIG | 917 |
SPDP800 | 115/1/60 | 800 CFM | 150 PSIG | 1114 |
General industrial plant air applications
- Filters
- 3-Valve bypass
- SPZL drain
- Stainless steel tubing
- Dew point monitor with display
- Failure to switch alarm
- MODBUS communications
- Delta P filter alarm with gauge
- Outdoor protection package (above +32ºF and down to -20ºF)