Adsorption Dryers
Pneumatech Adsorption Dryers give customers efficient protection against the presence of any humidity in the air, which leads to pipe corrosion and decreased efficiency of equipment and tools.
All materials can adsorb and desorb water, only the degree of adsorption is different per material. Desiccant used in adsorption dryers is specifically designed to adsorb moisture. Desiccants can release the water particles by adding some form of energy to them. This is called regeneration.
Pneumatech desiccant dryers consist of two towers, both filled with desiccant, which alternatively operate in adsorption or regeneration cycle via a controlled switching mechanism. Once the desiccant is saturated in one vessel the process is reversed, and the second vessel starts adsorbing.
Adsorption dryers are used when PDPs (pressure dew points) from -10°C/14°F down to -70°C/-94°F are to be achieved. They make use of a material which has a high affinity to attract moisture, so called hygroscopic material or desiccant. The adsorption of moisture causes the desiccant to be gradually saturated with water.
Therefore, the desiccant needs to be regenerated regularly to regain its drying capacity. Adsorption dryers are typically built with two drying vessels (“towers”) for that purpose: the first tower will dry the incoming compressed air while the second one is being regenerated. To ensure continuity, each vessel switches tasks when the other one is completely regenerated. For critical applications and applications below 5°C/ 41°F ambient temperature, an adsorption dryer is recommended
Product Lineup
PE 760-3390 S Heated Purge Adsorption Dryers
With distinctive, patented technology, PE adsorption dryers provide you with a dry air solution; at a lower initial investment cost than PB blower purge dryers and a lower lifecycle cost than PH heatless dryers. PE dryers use heated purge air to remove moisture from the desiccant material.
PE 760S-3390S adsorption dryers are capable of drying air to a pressure dew point of -40°C/-40°F as standard and -70°C/-94°F as option. The desiccant is housed in welded vessels, which are coated and can operate up to 10 barg/145 psig (fatigue load). Mounted pre- and after- filters can be ordered as an option.
The PurelogicTM is the central brain of the adsorption dryer. It optimizes operating costs thanks to the availability of regeneration temperature control, pressure dew point control (optional) and compressor synchronization; ensures maximum reliability by monitoring the most important parameters of the dryer; and offers impressive control and monitoring capabilities.
- Advanced energy management for lowest operating costs
- High-quality, high-efficiency desiccant, selected for the right application
- Minimal risk of crushed desiccant thanks to the sonic nozzle and the large vessel diameter
- Counter-current regeneration for optimal energy efficiency and guaranteed dry air
- High reliability and robust design
- Low noise levels while purging
- Designed for transportability
- High-efficiency heaters, designed for maximum lifetime and minimal risk
- Optimal control and monitoring thanks to the Purelogic™ controller
PH 760-3390 HE Welded Vessel Heatless Adsorption Dryers
PH 760-3390 HE adsorption dryers are capable of drying air to a PDP (pressure dew point) of -40°C/-40°F as standard and -70°C/-94°F as option for higher flows up to 5760 m³/hr/3390 cfm. The desiccant is housed in welded vessels, which are coated and can operate up to 9 barg/130 psig (fatigue load) with std variant and up to 14,5 barg/203 psi with high pressure variant (fatigue load). All dryers can be equipped with 2 coalescing prefilters before and one particulate filter after the dryer (optional).
Thanks to ingeniously designed mechanical components i.e open type of silencers and large vessels, PH 760-3390 HE range offers highest performance with lowest pressure drop and improved purge loss of 16%.
Considering different needs of the customers, the PH 760-3390 HE range offers 3 different controller for different requirements. DC 1 Controller version has a basic controller with required controls and monitoring such as service alarm, general alarm relay, synchronization control and optional dew point control whereas Purelogic™ controller version will have the Purelogic™ as central brain of the adsorption dryer. The Purelogic™ optimizes operating costs; ensures maximum reliability by monitoring the most important parameters; and offers impressive control and monitoring capabilities. For special applications where pneumatic control is preferred and no electricity is possible, PH 760-3390 HE also operates with pneumatically enabled controller.
- Available in three standard variants
- Lowest possible pressure drop thanks to innovative open silencer design
- Improved performance with reduced purge rate to 16% across the complete range
- Advanced energy management for lowest operating costs
- High-quality, high-efficient desiccant, selected for the right application
- Counter-current regeneration for optimal energy efficiency and guaranteed dry air
- High reliability and robust design
- Low noise levels while purging
- Designed for transportability
- Optimal control and monitoring thanks to the Purelogic™ controller
- Minimal risk of crushed desiccant thanks to the large vessel diameter & the sonic nozzle
PH 45-690 HE Extruded Profile Heatless Adsorption Dryers
Thanks to its groundbreaking structured desiccant, Pneumatech’s PH 45-690 HE adsorption dryer offers unprecedented benefits and the lowest cost of ownership. It is the most efficient dryer available on the market today with an optimal, even air flow and low pressure drop.
Because structured desiccant decays at a much slower rate than desiccant beads, the PH HE’s service intervals are 40% longer. The desiccant blocks also make maintenance much faster and easier.
The PH HE takes dryer reliability to another level. While desiccant beads create dust that can cause dryer failures and compromise your production, the PH HE’s solid desiccant eliminates this risk. The result is an absolutely stable pressure dew point every day of the year. The PE HE’s robust design and exclusive pneumatic valves ensure outstanding drying results even in tough conditions.
The easy-to-use PureLogic™ controller allows you to optimize the performance and efficiency of your PH HE.
- New solid desiccant with premium reliability
- High-efficiency air flow ensures lowest energy and operating costs
- 40% longer desiccant lifetime
- Easier maintenance
- Elimination of desiccant dust reduces operational failures
- Stable low pressure dew point
- Easy-to-use PureLogicTM controller optimizes dryer performance and efficiency
- Pneumatic valves add robustness in tough environments
PH 2-45 HE Extruded Profile Heatless Adsorption Dryers
Incorporating high-quality components, PH heatless adsorption dryers provide you with clean, dry air to extend the life of your equipment and products. Heatless adsorption dryers use dry, expanded purge air to remove moisture from the desiccant material.
PH 2-45 HE adsorption dryers are capable of drying air to a PDP of -70°C/-94°F, simply by reducing the flow, thanks to the use of carefully selected molecular sieves. The desiccant is housed in a robust extruded aluminum body, which can operate until 16 barg/232 psig (fatigue load). The dryers are equipped with a mounted pre-filter and an integrated after-filter as standard, can be installed vertically and can also be wall-mounted with a specially designed wall-mounting kit (optional).
The controller ensures the lowest operational costs thanks to compressor synchronization and the optional PDP control. LED’s on the controller indicate whether power supply is connected, towers are pressurized and solenoids are functioning properly. It also provides with preventive maintenance information. Alarms can also be triggered remote thanks to the available voltage-free contact.
- Advanced energy management for lowest operating costs
- High-quality, high-efficient desiccant
- Spring-loaded cartridges minimize the risk of crushed desiccant
- Counter-current regeneration for optimal energy efficiency
- Designed for transportability and mountability
- Inlet and outlet can be reversed
- Low noise levels while purging
- High reliability and robust design
PH 55-550 HE Extruded Profile Heatless Adsorption Dryers
Incorporating high-quality components, PH heatless adsorption dryers provide you with clean, dry air to extend the life of your equipment and products. Heatless adsorption dryers use dry, expanded purge air to remove moisture from the desiccant material.
The dryers are equipped with a mounted pre-filter and an integrated after-filter as standard, can be installed vertically and can also be wall-mounted with a specially designed wall-mounting kit (optional).
The controller ensures the lowest operational costs thanks to compressor synchronization and the optional PDP control. LED’s on the controller indicate whether power supply is connected, towers are pressurized and solenoids are functioning properly. It also provides with preventive maintenance information. Alarms can also be triggered remote thanks to the available voltage-free contact.
- Advanced energy management for lowest operating costs
- Best-in-class performance thanks to unique valve and exhaust design
- Low noise levels during purge and blow-off
- High-quality, high-efficient desiccant
- Spring-loaded desiccant minimizes the risk of crushing
- Counter-current regeneration for optimal energy efficiency
- Designed for transportability and mountability
- Desiccant bags for easy service from the top
PH 55-550 S Extruded Profile Heatless Adsorption Dryers
Incorporating high-quality components, PH heatless adsorption dryers provide you with clean, dry air to extend the life of your equipment and products. Heatless adsorption dryers use dry, expanded purge air to remove moisture from the desiccant material.
PH 55-550 S adsorption dryers are available in 2 PDP variants:
-20°C/-4°F and -40C°/-40°F.The unique manifold (patent pending) includes pilot air controlled 3/2-way valves, which switch fast and reliably.
The desiccant is spring-loaded and housed in a robust extruded aluminum body, which can operate up to 14 barg/203 psig (fatigue load). Pre- and afterfilters are delivered as standard with every dryer.
Operating costs are optimized at all times thanks to the availability of compressor synchronization and purge nozzle optimization as standard and PDP control as option. The full machine status can be checked on the display of the controller and the vessel pressure gauges on the unit. The controller indicates whether power supply is connected, towers are pressurized, valves are functioning properly or preventive maintenance needs to be done. In case the optional PDP control is connected, the PDP value can monitored from the display. Alarms and warnings can also be triggered remote with the available voltage-free contacts.
- Advanced energy management for lowest operating costs
- High reliability and low maintenance costs thanks to unique valve design
- High-quality desiccant, resulting in a consistent PDP
- Advanced controller to monitor machine status at all times
- Spring-loaded desiccant minimizes the risk of crushing
- Counter-current regeneration for optimal energy efficiency
- Designed for transportability and mountability
- Desiccant bags for easy service from the top
PB 210-635 HE Blower & Zero Purge Adsorption Dryers
PB dryers use heated blower purge air to remove moisture from the desiccant material and have therefore no purge loss during regeneration. The Zero Purge variants reduce life cycle costs even further by also eliminating purge loss during cooling. The cooling phase happens in a closed loop, hereby minimizing the performance impact at high ambient temperature and relative humidity.
High end zero purge desiccant dryers
Operating costs are reduced to the absolute minimum thanks to PDP control, regeneration & cooling temperature control and compressor synchronization; which are all integrated in the Purelogic™ controller. Zero Purge variants are equipped with a purge back-up mode which switches the dryer to purge cooling mode in case PDP could not be met at ambient conditions outside of limitations.
- Advanced energy management for lowest operating costs
- Guaranteed performance at high ambient temperatures
- Minimal risk of crushed desiccant thanks to the sonic nozzle and the large vessel diameters
- Counter-current regeneration for optimal energy efficiency and guaranteed dry air
- High efficient heaters, designed for maximum lifetime and minimal risk
- Compact, efficient and reliable side-channel centrifugal blower
- Designed for transportability
- High-quality, high-efficient desiccant, selected for the right application
- Optimal control and monitoring thanks to the Purelogic™ controller
- High-quality, high-efficiency desiccant, selected for the right application
- High-efficiency heaters, designed for maximum lifetime and minimal risk
PB 760-3390 S Blower Purge Adsorption Dryers
PB dryers use heated blower purge air to remove moisture from the desiccant material and have therefore no purge loss during regeneration. The Zero Purge variants reduce life cycle costs even further by also eliminating purge loss during cooling. The cooling phase happens in a closed loop, hereby minimizing the performance impact at high ambient temperature and relative humidity.
Advanced energy management for lowest operating costs
- High-quality, high-efficiency desiccant, selected for the right application
- Minimal risk of crushed desiccant thanks to the sonic nozzle and the large vessel diameters
- Counter-current regeneration for optimal energy efficiency and guaranteed dry air
- High-efficiency heaters, designed for maximum lifetime and minimal risk
- Compact, efficient and reliable side-channel centrifugal blower
- Designed for transportability
- Optimal control and monitoring thanks to the Purelogic™ controller
PB 760-7400 HE Blower & Zero Purge Adsorption Dryers
The Pneumatech PB 760-7400 HE delivers a low PDP of -40°C/-40°F as standard (-70°C/-94°F optional) with minimal operational costs. The range comes in a blower purge and two zero purge variants (with open and closed loop cooling), each offering flows up to 12,600 m3/hr.
The PB 760-7400 HE is built for premium high-flow performance:
- High-quality, high-efficiency desiccant with a long lifecycle
- Minimal risk of crushed desiccant thanks to the sonic nozzle and large welded vessels
- Very low internal pressure drop (0.2 bar/0.9 psi)
- Highly efficient counter-current regeneration
- Smart Cycle Control algorithm delivers energy savings at partial load
- The electric heater’s design and stainless-steel, insulated build ensure optimal flow, energy efficiency and a long lifetime
- Galvanized pipes with flanged connections simplify maintenance and minimize the risk of leakage
- Compact base frame with forklift slots saves on floor space
- Optimal control and monitoring thanks to Purelogic™ Controller
Blower purge and zero purge adsorption dryers – how do they work?
Adsorption dryers remove moisture from compressed air by passing it through one of two towers filled with desiccant. When the desiccant in one tower is saturated, PB HE dryers use heated blower purge air to remove the moisture from the adsorbent material (while the other tower handles the drying). That means they have no purge loss during regeneration. The zero purge variants reduce lifecycle costs even further by also eliminating purge loss during cooling.
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