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FLEX SERIES ENERGY-SAVING REFRIGERATED AIR DRYERS

Refrigerated compressed air dryers

Air flow rate 127m³/h to 3400m³/h

FLEX Series Refrigerated Air Dryers are a Sustainable Energy Saving Solution for your compressed air system. 

Energy Saving Sustainability

The FLEX Series lowers air system power costs and improves productivity by matching power consumption to compressed air demand. In a typical manufacturing facility, up to 30% of the electricity consumed is for generating and treating compressed air. To reduce the total cost of operation and qualify for utility company incentive programs, proper air treatment equipment selection and application is required.


Load Matching Performance

Compressed air load profiles in most manufacturing facilities fluctuate. The FLEX Series provides cost-effective energy savings by matching electrical power consumed in direct proportion to air demand. Linear load matching is achieved from 0% up to 100% demand. Non-cycling dryers operate with the refrigeration compressor running continuously, regardless of inlet load conditions. Minimal energy savings are realized from 100% down to 0% inlet air load.

hk_flex_3d_web.png
ModelFlow Rate*Pressure LossVoltagesConnectionOp. PowerDimensions (mm)WeightCooling
 m³/hbarV KwABCKg 
FLX 1.11270,23230/1/501"0,4360336375162R134a
FLX 1.21700,21230/1/501"0,4378136371169R134a
FLX 1.52550,15230/1/502"0,5990144376181R407C
FLX 2.13400,15230/1/502"0,8596144376182R407C
FLX 3.15100,16230/1/502"1,31.111493911126R407C
FLX 4.16800,17230/1/502"1,661.111493911153R407C
FLX 5.59340,23230/1/502"21.2034931.032178R407C
FLX 8.113600,28400/3/50DN802,71.4948001488479R513a
FLX 10.117000,28400/3/50DN803,81.572850549
FLX 15.125500,3400/3/50DN10061000801
FLX 20.134000,3400/3/50DN1007,31.742920

* ISO 7183: Based on the intake volume of the compressor at +20ºC and 1 bar (g), operating pressure 7 bar (g), inlet temperature +35ºC, ambient or cooling water temperature at +25ºC, pressure dew point +3ºC.
Technical data and specifications are subject to change without prior notice.

Contact us to get more information about correction factors and other data. 

 

How it works

The FLEX Series utilizes a phase change (PCM) heat transfer medium between the refrigeration and compressed air circuits that serve as a reservoir for thermal storage. The thermal reservoir is comprised of a 3-in-1 heat exchanger (patent pending)filled with a phase change material that efficiently transfers heat energy through a "change of state."Phase Change: changing from liquid to solid back to liquid in a continuous cycle. The refrigeration circuit operates to cool down the PCM until it forms into a solid at which time the refrigeration system cycles off. As the compressed air enters the PCM to air section of the heat exchanger, the PCM media absorbs heat for the airstream and begins to melt the PCM media at a constant temperature. When most of the PCM media has turned to liquid the refrigeration system cycles on to again cool down the PCM media turning it back into a solid. This cycle repeats as required to meet the corresponding compressed air load on the FLEX dryer.

 

flex-series-refrigerated-air-dryers-theory-of-operation-image.jpg

Features

Energy Saving Sustainability

The FLEX Series lowers air system power costs and improves productivity by matching power consumption to compressed air demand. In a typical manufacturing facility, up to 30% of the electricity consumed is for generating and treating compressed air. To reduce the total cost of operation and qualify for utility company incentive programs, proper air treatment equipment selection and application is required.


Load Matching Performance

Compressed air load profiles in most manufacturing facilities fluctuate. The FLEX Series provides cost-effective energy savings by matching electrical power consumed in direct proportion to air demand. Linear load matching is achieved from 0% up to 100% demand. Non-cycling dryers operate with the refrigeration compressor running continuously, regardless of inlet load conditions. Minimal energy savings are realized from 100% down to 0% inlet air load.

hk_flex_3d_web.png

Specifications

ModelFlow Rate*Pressure LossVoltagesConnectionOp. PowerDimensions (mm)WeightCooling
 m³/hbarV KwABCKg 
FLX 1.11270,23230/1/501"0,4360336375162R134a
FLX 1.21700,21230/1/501"0,4378136371169R134a
FLX 1.52550,15230/1/502"0,5990144376181R407C
FLX 2.13400,15230/1/502"0,8596144376182R407C
FLX 3.15100,16230/1/502"1,31.111493911126R407C
FLX 4.16800,17230/1/502"1,661.111493911153R407C
FLX 5.59340,23230/1/502"21.2034931.032178R407C
FLX 8.113600,28400/3/50DN802,71.4948001488479R513a
FLX 10.117000,28400/3/50DN803,81.572850549
FLX 15.125500,3400/3/50DN10061000801
FLX 20.134000,3400/3/50DN1007,31.742920

* ISO 7183: Based on the intake volume of the compressor at +20ºC and 1 bar (g), operating pressure 7 bar (g), inlet temperature +35ºC, ambient or cooling water temperature at +25ºC, pressure dew point +3ºC.
Technical data and specifications are subject to change without prior notice.

Contact us to get more information about correction factors and other data. 

 

Theory Of Operation

How it works

The FLEX Series utilizes a phase change (PCM) heat transfer medium between the refrigeration and compressed air circuits that serve as a reservoir for thermal storage. The thermal reservoir is comprised of a 3-in-1 heat exchanger (patent pending)filled with a phase change material that efficiently transfers heat energy through a "change of state."Phase Change: changing from liquid to solid back to liquid in a continuous cycle. The refrigeration circuit operates to cool down the PCM until it forms into a solid at which time the refrigeration system cycles off. As the compressed air enters the PCM to air section of the heat exchanger, the PCM media absorbs heat for the airstream and begins to melt the PCM media at a constant temperature. When most of the PCM media has turned to liquid the refrigeration system cycles on to again cool down the PCM media turning it back into a solid. This cycle repeats as required to meet the corresponding compressed air load on the FLEX dryer.

 

flex-series-refrigerated-air-dryers-theory-of-operation-image.jpg