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ZP Series - Blower Purge Regenerative Desiccant Dryers

DRYERS - COMPRESSED AIR / DESICCANT COMPRESSED AIR DRYERS

ZP Series blower purge regenerative dryers are economical & reliable

ZP Series dryers improve air system efficiency by the use of a dedicated axial blower, instead of a percentage of dehydrated purge air, to regenerate the off-line desiccant tower. ISO 8573.1 Class 2 (-40°F/-40°C) dew point performance is guaranteed. ZP Series compressed air dryers will produce the design dew point while operating continuously at maximum rated flow (100% duty cycle) at CAGI ADF 200 inlet standards of 100°F inlet temperature and 100% relative humidity at 100 psig.

Blower purge type regenerative compressed air dryers are an economical and reliable way to dry compressed air to dew points below the freezing point of water. Desiccant dryers lower the dew point of compressed air by adsorbing the water vapor present in the compressed air onto the surface of the desiccant. Adsorption continues until equilibrium is reached between the partial pressure of the water vapor in the air and that on the surface of the desiccant. These dryers continuously process compressed air by using two identical towers, each containing a desiccant bed. While one tower is on-stream drying, the other tower is off-stream being regenerated (reactivated, i.e. dried out). The towers are alternated on and off-stream so that dry desiccant is always in contact with the wet compressed air. In this way a continuous supply of dry air downstream of the dryer is possible. The switching from one tower to the other is controlled by a solid-state controller on either a fixed time basis (standard) or a demand basis (optional).

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

zp-series-blower-purge-regenerative-desiccant-dryers-features-theoryofoperation.jpg
MODELCAPACITY1 2
SCFM
BLOWER
KW
HEATING
 RATING
KW
AVERAGE
KW
INLET/OUTLET
CONNECTIONS
DF-SERIES
PREFILTER 
DF-SERIES
AFTERFILTER 
ZP5005001.61010.12" NPTDF5-44-20-DGDTA600
ZP6006002.5 1212.72” NPTDF5-44-20-DGDTA600
ZP7507502.21414.83” FLGDF5-48-20-DGDTA1200
ZP9009002.01616.23” FLGDF5-54-24-GDTA1200
ZP105010502.81919.23” FLGDF5-56-24-GDTA1200
ZP130013005.32325.73” FLGDF5-60-24-GDTA1800
ZP150015007.52832.83” FLGDF5-60-24-GDTA1800
ZP180018007.03235.43” FLGDF5-60-24-GDTA1800
ZP220022005.63941.94” FLGDF5-64-4F-GDTA2400
ZP2600260010.34550.74” FLGDF5-68-4F-GDTA3000
ZP320032002.85352.56” FLGDF5-72-6F-GDTA4800
ZP360036004.05859.46” FLGDF5-72-6F-GDTA4800
ZP430043004.47070.46” FLGDF5-72-6F-GDTA4800

1 @ 100 psig, 100°F -40°F Pressure Dewpoints
2 Performance data per CAGI Standard ADF 200 for Dual–Tower Regenerative Desiccant Compressed Air Dryer. Rating conditions are 100°F (37.8°C) inlet 100 psig (6.9 bar) inlet pressure, 100% relative humidity, 100°F (37.8°C) ambient temperature.
Consult factory for sizing assistance and -100°F pressure dewpoint applications. Larger models available.

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP50053 70105 1,866

#BBD0E0 »

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP60055711082,111
MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP75060831142,456

​ #BBD0E0 »

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP90060831142,472
MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP105064841132,981
MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP130066851183,576
MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP150080931165,359
MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP180080931165,359

ZP500

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP50053 70105 1,866

#BBD0E0 »

ZP600

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP60055711082,111

ZP750

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP75060831142,456

​ #BBD0E0 »

ZP900

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP90060831142,472

ZP1050

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP105064841132,981

ZP1300

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP130066851183,576

ZP1500

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP150080931165,359

ZP1800

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP180080931165,359

Features

ZP Series dryers improve air system efficiency by the use of a dedicated axial blower, instead of a percentage of dehydrated purge air, to regenerate the off-line desiccant tower. ISO 8573.1 Class 2 (-40°F/-40°C) dew point performance is guaranteed. ZP Series compressed air dryers will produce the design dew point while operating continuously at maximum rated flow (100% duty cycle) at CAGI ADF 200 inlet standards of 100°F inlet temperature and 100% relative humidity at 100 psig.

Blower purge type regenerative compressed air dryers are an economical and reliable way to dry compressed air to dew points below the freezing point of water. Desiccant dryers lower the dew point of compressed air by adsorbing the water vapor present in the compressed air onto the surface of the desiccant. Adsorption continues until equilibrium is reached between the partial pressure of the water vapor in the air and that on the surface of the desiccant. These dryers continuously process compressed air by using two identical towers, each containing a desiccant bed. While one tower is on-stream drying, the other tower is off-stream being regenerated (reactivated, i.e. dried out). The towers are alternated on and off-stream so that dry desiccant is always in contact with the wet compressed air. In this way a continuous supply of dry air downstream of the dryer is possible. The switching from one tower to the other is controlled by a solid-state controller on either a fixed time basis (standard) or a demand basis (optional).

Theory of Operation

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

zp-series-blower-purge-regenerative-desiccant-dryers-features-theoryofoperation.jpg

Specifications

MODELCAPACITY1 2
SCFM
BLOWER
KW
HEATING
 RATING
KW
AVERAGE
KW
INLET/OUTLET
CONNECTIONS
DF-SERIES
PREFILTER 
DF-SERIES
AFTERFILTER 
ZP5005001.61010.12" NPTDF5-44-20-DGDTA600
ZP6006002.5 1212.72” NPTDF5-44-20-DGDTA600
ZP7507502.21414.83” FLGDF5-48-20-DGDTA1200
ZP9009002.01616.23” FLGDF5-54-24-GDTA1200
ZP105010502.81919.23” FLGDF5-56-24-GDTA1200
ZP130013005.32325.73” FLGDF5-60-24-GDTA1800
ZP150015007.52832.83” FLGDF5-60-24-GDTA1800
ZP180018007.03235.43” FLGDF5-60-24-GDTA1800
ZP220022005.63941.94” FLGDF5-64-4F-GDTA2400
ZP2600260010.34550.74” FLGDF5-68-4F-GDTA3000
ZP320032002.85352.56” FLGDF5-72-6F-GDTA4800
ZP360036004.05859.46” FLGDF5-72-6F-GDTA4800
ZP430043004.47070.46” FLGDF5-72-6F-GDTA4800

1 @ 100 psig, 100°F -40°F Pressure Dewpoints
2 Performance data per CAGI Standard ADF 200 for Dual–Tower Regenerative Desiccant Compressed Air Dryer. Rating conditions are 100°F (37.8°C) inlet 100 psig (6.9 bar) inlet pressure, 100% relative humidity, 100°F (37.8°C) ambient temperature.
Consult factory for sizing assistance and -100°F pressure dewpoint applications. Larger models available.

Dimensions

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP50053 70105 1,866

#BBD0E0 »

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP60055711082,111
MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP75060831142,456

​ #BBD0E0 »

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP90060831142,472
MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP105064841132,981
MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP130066851183,576
MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP150080931165,359
MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP180080931165,359

ZP500

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP50053 70105 1,866

#BBD0E0 »

ZP600

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP60055711082,111

ZP750

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP75060831142,456

​ #BBD0E0 »

ZP900

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP90060831142,472

ZP1050

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP105064841132,981

ZP1300

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP130066851183,576

ZP1500

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP150080931165,359

ZP1800

MODELDIMENSIONS (INCHES)WEIGHT
LBS
HWD
ZP180080931165,359