Air Dryer

Highest performance
and quality air dryer

Refrigerated Air Dryer

The refrigerant cycle reduces the temperature of the compressed air to condense
and dehumidification of water vapor and is often chosen at a typical site of compressed air use.


Compact Refrigerated Air Dryer

Research indicates that many customers want reliability and dry compressed air at an affordable price.
The TXK series non-cycling just dry air, pure and simple.
The TXK series non-cycling dryers were designed to meet these demands.

Product Features

  • Static condenser with no cooling fan
  • Perfect application for indoor installation such as hospital and laboratory
  • Robust design & compact size

  • Unique refrigerant control system
  • Energy saving through waste heat recovery
  • Excellent dew point performance under all conditions

Operating fundamental

  • 1 Warm saturated air enters the evaporator where it is cooled by refrigerant being controlled by a constant pressure expansion valve.
  • 2 Water vapor condenses into a liquid for removal at the moisture separator by a drain.
  • 3 The cold, dry air is reheated as it passes through the re-heater.
  • 4 This prevents dryer outlet air pipeline sweating.
  • 5 The Static condenser eliminates the need for a cooling fan and simplifies the system.


Medium Size Refrigerated Air Dryer

The FLEX series are optimized air dryers for hot and humid climate in the tropical regions.

An advanced stainless steel brazed plate heat exchanger is applied, and it deters refrigeration load with great efficiency of heat-transfer.
The innovative and simplified refrigeration circuit provides reliable operation, low operating cost and versatile installation.

Product Features

Optimized for hot and humid climate in the tropical regions
  • Stainless steel brazed plate heat exchangers optimize heat transfer and service life
  • Separator, re-heater and evaporator combined into 1 compact efficiency unit
  • Improved ventilation by up-flow cooling air design
    • – Low pressure drop reduces operating costs
    • – Low power consumption

Easy to install package saves time and money
  • Environmentally friendly R-134a & R-407C refrigerants

Operating fundamental

  • 1 Warm, saturated compressed air enters the air to air heat exchange and is cooled by the exiting air.
  • 2 The precooled air then enters the air to refrigerant heat exchanger and is further chilled causing water vapor to condense.
  • 3 Condensed moisture is collected from the air stream by an integral separator with stainless steel demister.
  • 4 Liquid condensate is removed from the separator by an automatic time.
  • 5 Cold air is then reheated in the air to air heat exchanger to eliminate sweating on the downstream pipe line.
  • 6 Clean, dry air exits the dryer and is now qualified for use of purpose.


Large size Refrigerated Air Dryer

The HXK series utilizes advanced heat exchanger, separation and refrigeration technology.
It’s a revolutionary that uses an innovative, simplified refrigeration circuit to provide dependable operation, low operating cost and versatile installation.
Performs in rated conditions of 75 to 600 scfm.

Product Features

  • 3-in-1 stainless steel brazed plate heat exchanger with integral separator ensures optimal dew point performance under all conditions
  • Compact design uses 40% less floor space
  • Low pressure drop reduces operating costs
  • User friendly controller

  • Reliable timed electric drain with push-to-test button on the front panel
  • Electro-galvanized steel cabinet with two part epoxy coating
  • Environmentally friendly R-134a and R-407C refrigerants
  • Optional / No loss drain valve

Operating fundamental

  • 1 Warm, saturated compressed air enters the air-to-air heat exchanger and is cooled by the exiting air.
  • 2 The precooled air then enters the air to refrigerant heat exchanger and is further chilled causing water vapor to condense.
  • 3 Condensed moisture is collected from the air stream by an integral separator with stainless steel demister.
  • 4 Liquid condensate is removed from the separator by an automatic timed electric drain.
  • 5 Cold air is then reheated in the air-to-air heat exchanger to eliminate pipe line sweat.


Integrated, High Inlet Temperature Refrigerated Air Dryer

The JHT series replaces four separate components ; the aftercooler, separator, dryer and filter, with one compact package.
Guaranteed to cool, dry and clean your compressed air Jemaco air JHT series dyer are the smart choice.

Product Features

  • Accepts hot compressed air (Up to 80℃ inlet) directly from the air compressed
  • No separate aftercooledr and separator required
  • Vastly improved filtering system
  • Unique heat exchanger
  • Environmentally friendly refrigerant

  • Simple design color indicator (JHT 25 ~ 100)
  • Easy to read Digital Control Monitor (JHT 200)
  • Pre-engineered systems, easy to select and install
  • Auto drain valve removes condensate

Operating fundamental

The flow of compressed air
  • 1 When the hot compressed air discharged from the air compressor enters the dryer, the first cooling is performed at the after cooler, and condensate and impurities are removed through the pre filter/separator.
  • 2 The primary cooling air is cooled by the secondary precooling while heat is exchanged with the cooled air at the heater (the pre-cooler) in the plate heat exchanger, and then cooled to the dew point by refrigerant in the evaporator.
  • 3 Fully cooled air flows through the separator to discharge condensate, and heat is exchanged with the hot inlet air inside the re-heater, to reduce the relative humidity.
  • 4 Dehumidified air is then drained from the dryer after the residual oil is removed from the after filter.
The flow of Refrigerant
  • 1 The refrigerant is compressed in the refrigeration compressor and then cooled in the condenser, depressurized and expanded in the expansion valve and then sent to the evaporator.
  • 2 Compressed air is cooled within the evaporator and the vaporized refrigerant is drawn into the refrigeration compressor.

Desiccant Air Dryer

Adsorption agents filling the two vessels absorb water vapor to dehumidified it. It is chosen primarily to sites that have very low dew points and require ultra-dried compressed air.


Pressure Swing Desiccant Air Dryers

HLK Series presents traditional heatless drying technology.
Using a simple timer based controller, these are designed to deliver maximum value to applications that operate at-or-near full capacity.
Automatic time controlled bed regeneration cycles offer consistent performance and economy of purchase.

Product Features

Shuttle Valve-HL 10K-HL600K
  • Consistent outlet pressure dew points Large desiccant beds produce, -40(℃) pressure dew point
  • Minimum purge air usage-saving the heat of adsorption maximizes the moisture holding capacity of the purge air, minimizing the amount required
  • Long desiccant life-beds sized to prevent fluidization plus slow and complete regeneration prevent desiccant movement and deterioration
  • Heavy duty purge exhaust muffler for quiet operation
  • Non-lubricated, soft seated control valves

Wall Mount Dryer-HL 10K-HL35K
  • Stainless steel support screens and air diffusers-filters out gross contaminants, protects valves
  • Furnished in cabinet for easy wall mounting completely assembled, piped, and wired shipped with full charge of desiccant only hook-up of utilities is needed to operate
  • Vessels are constructed to meet the requirements of ASME code, Section Ⅷ, Division 1 and stamped (55 scfm larger)

Operating fundamental

  • 1 Compressed air enters the dryer and is directed to vessel 1 by valve and then to the dryer outlet through shuttle valve. A portion of the dried air is throttled to near atmospheric pressure by means of orifice.
  • 2 This extremely dry, low pressure air flows through and regenerates the desiccant in vessel 2 and is exhausted through purge/repressurization valve and exhaust muffler to atmosphere.
  • 3 After a set time, the automatic solid state timer closes purge/repressurization valve allowing vessel 2 to repressurize slowly.
  • 4 At the end of 5minutes(when operating on a 10minute cycle, 2minutes on a 4minute cycle), valve shifts and purge/repressurization valve re-opens. The main air flow is now dried by vessel 2 while vessel 1 is being regenerated


Externally Heated Desiccant Air Dryers

The JPD Series desiccant dryers are designed and built for plant & instrument air application where the lower purge consumption is required.
JPD Series dryers are using the small portion of purge air heated by external heater for regeneration.
SPX FLOW guarantees that JPD Series dryers will produce the design -40℃ PDP(standard) or -73℃ PDP(optional) while operating continuously at maximum rated flow (100% duty cycle).

Product Features

  • JPD Series dryer is designed to use a low watt density heater with optional surface area.
  • High performance butterfly valves control the flow of air through the vessels.

  • Vessel are constructed to meet the requirements of ASME code, Section Ⅷ, Division 1 and stamped.

Operating fundamental

  • 1 Filtered compressed air enters on-line desiccant-filled, drying vessel A through butterfly valve.
    Up-flow drying enabled the desiccant to strip moistures from the air stream.
  • 2 Clean, dry compressed air (-40℃ PDP) exits through check valve to feed the air system.
  • 3 Vessel 2 (shown in regeneration mode) the butterfly valve for vessel B closed and the heater turns on the small portions of purge air (3% ~ 10%) are heated by the heater and flow downward in order to reactivate the moist-desiccant in vessel B, collecting water vapor before purge valve.
  • 4 This purge air is exhausted through the purge valve.
  • 5 Once the desiccant is fully desorbed, or the purge air temperature reaches 80℃ and the minimum regeneration time (90 minutes) has been exceeded, the heater turns off.
  • 6 At a fixed time interval the butterfly valve at vessel B and vessel B will be placed on-line to the dry air stream and the butterfly valve at vessel A will close.
  • 7 Operation will switch and vessel A will be regenerated.


Blower Purge Desiccant Air Dryers

As the air compressor is the most costly system component to purchase and, it uses more electrical energy than the rest of the system combined, it is wise to ensure that the smallest air compressor is installed.
JBP II Series dryers are 100% efficient at delivering full supply-side compressor capacity.
Therefore, users benefit from the ability to purchase a less expensive air compressor and, a 20% reduction in compressor operating costs.

Product Features

  • Soft-seated check valves for tight shutoff and durability
  • Vessels filled with extra, industrial-grade activated alumina 1 deliver superior performance
  • Low watt density heater save energy and prevents premature desiccant aging
  • High performance butterfly valves control the flow of air through the vessels
  • Low watt density heaters saves energy and prevent premature desiccant aging

  • High quality pressure gauges display and purge pressure
  • Function indicator Graphic Control Panel
  • Easy-view text display is visible under any condition
  • NEMA 4 Construction
  • Quiet, energy efficient, high-capacity blowers

Operating fundamental

  • 1 Filtered compressed air enters on-line desiccant-filled, drying vessel A through valve(A).
  • 2 Up-flow drying enables the desiccant to strip moisture from the airstream.
  • 3 Clean, dry compressed air exits through (E) to feed the air system.
  • 4 Vessel B (shown in regeneration mode) valve(B) closed, depressurizes to atmosphere through muffler(C).
  • 5 Valves(D&F) open and the heater turns on.
  • 6 The high-efficiency blower draws ambient air and feeds it through the heater.
  • 7 The ambient airstream passes through valve(F) and flows downward through the moist desiccant in vessel B, collecting water vapor before existing valve(D).
  • 8 Once the desiccant if fully desorbed, the heater turns off.
  • 9 Valves(F&D) close and vessel B is repressurized.
  • 10 At a fixed time interval, valve(B) will open and vessel B will be placed on-line to dry the airstream and valve(A) will close.
  • 11 Operations will switch and vessel A will be regenerated.


Blower Nonpurge Desiccant Air Dryer

Moisture can be a real problem in a compressed air system.
The air outlet temperature of a compressor/after-cooler package is typically 24 – 50℃ and saturated with water vapor, which results in significant amounts of liquid downstream.
The moisture compressed air system can cause serious problems ranging from products spoilage to equipment malfunction, thus making an air dryer is a critical component in any compressed air system.
Our JDB series compressed air dryer reduces the concentration of water vapor and decreases the pressure dew point of the air to -40℃. (Optional: -73℃)
JDB Compressed air dryers use porous materials (desiccants) to adsorb moisture from the compressed air.
For regeneration, heated ambient air is used instead of expensive purge air to desorb moisture from the regenerating bed No purge loss means DRYER-IN is almost same as DRYER-OUT.

Product Features

  • Reliable pressure dew point
  • Energy saving

  • Easy maintenance
  • ASME standard

Operating fundamental

  • 1 No purge air loss and no dew point spike: Regeneration is carried out by means of heated ambient air. Therefore no purge air is used, so dryer “in” is dryer “out”. Pressure dew point and outlet temperature of the dried compressed air will not exceed the specified conditions (no peaks during switch-over), due to the special regeneration system, co-current cooling and parallel drying.
  • 2 Low power consumption: The electrical energy consumption is matched to actual moisture loading of the desiccant. As the required heat for regeneration is equally distributed over the desiccant bed, no “hot spots” can occur, and excessive aging of the desiccant will be avoided.
  • 3 Compact and maintenance friendly: The regeneration heater is 2-stage with thermostatic control of the second stage and it includes a safeguard against overheating. Pressurization and depressurization before and after regeneration is a part of the dryer cycle. This prevents damage and wear and tear to the valve seals and any reduction in life-time of the desiccant due to pressure shocks.


Regenerative Circulation Desiccant Air Dryer

The hot inlet air generated from the air compressor is immediately disconnected, heated to the heater and used for the regeneration of the sorbent, resulting in a substantial reduction in heater capacity versus blower type products, and reduced electricity energy.
It is an energy-serving product without purge air loss due to its structure being recycled using heat and circulating within a closed circuit.

Product Features

  • Heat from compressed air reduces heater capacity drastically.
  • High-efficiency energy saving dryer
  • Closed system without purge air used during regeneration

  • Customizable to meet your customers ‘ needs
  • With the latest Jemaco New Controller (J-CON S), 7 ” Full control Touch Screen, Dryer Fully Automated Control
  • Energy trading system (optional)

Operating fundamental

  • 1 Regeneration
    The hot, compressed air drawn from the compressor is disconnected from the inlet or outlet of the aftercooler for dehumidification purposes of 70 % and the remaining 30 % for regeneration (heating and cooling). The compressed air produced by the compressor is reused for dehumidification, so all compressed air flow is used.
  • 2 Heating
    The hot air, isolated from the aftercooler, is heated through the heater before it enters the regenerating vessel to heat and regenerate the absorber. The moist air then cools in the regeneration cooler and passes through the water separator. It is then moved into the vessel on the other side under regeneration.
  • 3 Cooling (Regeneration)
    When the heated container is started to cool, the cooled air from the outlet of the aftercooler enters the vessel and cools the sorbent.
    This allows the discharged air to cool once again at the regeneration cooler and pass through the water separator into the vessel being de-humidified.
  • 4 Vessel Change
    After cooling, the vessel is ready for standby, wait for the set time to elapse (or until the optimal transition point is determined in Dew Point Meter & Demand Control), and then switch back to dehumidification.


Products installed together to increase air dryer efficiency and provide more reliable performance.

NGF Series

New Generation Filter (Compressed Air filter)

The Jemaco New Generation Filter Series is the ideal solution to remove contamination from compressed air systems and save energy.
The NGF Series employs technological advancements in filtration materials and design to ensure premium compressed air quality and low operation costs.

Product Features

  • Patented Venturi-Wave™ Element Design
  • Deep Bed Pleated, High Performance Media
  • Element Grade Identification

  • Sculpted Design
  • Safety Built-in

Use by type

Grade S
Bulk liquid separator / filter
Grade P/ PD
General purpose filter
Grade H
High efficiency oil removal filter
Grade U
Ultra high efficiency oil removal filter
Grade C
Oil removal filter


Standard of Air Filter

The JF series features filters to fill every need. Choose one of the five filters or link them together for specialized application.

Product Features

  • Operational reliability: high quality componets
  • Energy saving: low pressure drop

  • Problem free application: silicone free

Use by type

  • 1 GF (Coarse Particulate)
    GF filters remove coarse particulate material from the air stream. Particularly suited for use as a pre-filter to coalesce.
  • 2 PF (Coarse Coalescing)
    PF is designed for applications, which do not require high efficiency filtration. Also recommended as a pre-filter to prolong the life spans of high efficiency coalescing.
  • 3 HF (High Efficiency Coalescing)
    HF provides high efficiency for removal of liquid and aerosol mists.
  • 4 DF (Fine Particulate)
    DF removes fine particulate material from the air stream. Particularly suited for use as a desiccant dryer after-filter.
  • 5 CF (Vapor)
    CF incorporate activated carbon to remove hydrocarbon vapors and trace organic contaminants and their associated smells and tastes.


Air Cooled Aftercooler

If there is moisture in the compressed air, this leads various industrial pneumatic devices to lower qualities and shorter durability. Therefore, the compressed air should be dried and chilled before using it. JAC series after cooler, an essential supplementary device to supply lower temperature compressed air, condensate the water vapor and remove it with cooling down high temperature and saturated air initially.

Product Features

  • Easy maintenance and installation
  • Electronic Auto Drain Valve (option)
  • Maximize the chilling efficiency with high purity of aluminum pins and copper tube
  • Minimize the pressure drop with Multi-Circuit design
  • Special Steel for strong cases and high temperature treated embossing painting
  • Small and strong power self lubrication motor integrated

Operating fundamental

  • 1 The high temperature of heat exchanger out side is chilled with the fan, and the moisture of compressed air is condensed and drained during being cooled through copper tube inside (Option: Separator).
  • 2 As JAC is continuously cooling down the temperature of the compressed air, the lower the temperature is, the more condensate is removed.


Electronic Drain Valve

All compressed air systems produce internal condensate which must be drained away. Inadequately drained oil and water can cause equipment damage, down time and product failure. Jemaco JED series is the electronic drain valves automatically discharging accumulated fluids from compressors, filters, driplegs, receivers, separators and other collection points.

Product Features

  • No operator attention and minimal routine servicing
  • LED’s signal power on and drain open
  • Dual adjustments precisely match contaminant load: select drain cycle and drain duration
  • Discharges accumulated fluids with minimum air loss with only 19 watts electric power
  • High capacity discharge, more the 9ℓ per drain cycle at 7 barg

  • Operating pressure from 0 barg to 16 barg
  • Internal seals compatible with all major compressor lublicants
  • Can be installed indoors or outdoors(drain line may require heat tracing)

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