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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

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

MODEL CAPACITY1 2
SCFM
BLOWER
KW
HEATING
 RATING
KW
AVERAGE
KW
INLET/OUTLET
CONNECTIONS
DF-SERIES
PREFILTER 
DF-SERIES
AFTERFILTER 
ZP500 500 1.6 10 10.1 2" NPT DF5-44-20-DG DTA600
ZP600 600 2.5  12 12.7 2” NPT DF5-44-20-DG DTA600
ZP750 750 2.2 14 14.8 3” FLG DF5-48-20-DG DTA1200
ZP900 900 2.0 16 16.2 3” FLG DF5-54-24-G DTA1200
ZP1050 1050 2.8 19 19.2 3” FLG DF5-56-24-G DTA1200
ZP1300 1300 5.3 23 25.7 3” FLG DF5-60-24-G DTA1800
ZP1500 1500 7.5 28 32.8 3” FLG DF5-60-24-G DTA1800
ZP1800 1800 7.0 32 35.4 3” FLG DF5-60-24-G DTA1800
ZP2200 2200 5.6 39 41.9 4” FLG DF5-64-4F-G DTA2400
ZP2600 2600 10.3 45 50.7 4” FLG DF5-68-4F-G DTA3000
ZP3200 3200 2.8 53 52.5 6” FLG DF5-72-6F-G DTA4800
ZP3600 3600 4.0 58 59.4 6” FLG DF5-72-6F-G DTA4800
ZP4300 4300 4.4 70 70.4 6” FLG DF5-72-6F-G DTA4800

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

ZP500

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP500 53  70 105  1,866

#BBD0E0 »

ZP600

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP600 55 71 108 2,111

ZP750

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP750 60 83 114 2,456

​ #BBD0E0 »

ZP900

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP900 60 83 114 2,472

ZP1050

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1050 64 84 113 2,981

ZP1300

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1300 66 85 118 3,576

ZP1500

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1500 80 93 116 5,359

ZP1800

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1800 80 93 116 5,359
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP500 53  70 105  1,866

#BBD0E0 »

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP600 55 71 108 2,111
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP750 60 83 114 2,456

​ #BBD0E0 »

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP900 60 83 114 2,472
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1050 64 84 113 2,981
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1300 66 85 118 3,576
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1500 80 93 116 5,359
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1800 80 93 116 5,359

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
MODEL CAPACITY1 2
SCFM
BLOWER
KW
HEATING
 RATING
KW
AVERAGE
KW
INLET/OUTLET
CONNECTIONS
DF-SERIES
PREFILTER 
DF-SERIES
AFTERFILTER 
ZP500 500 1.6 10 10.1 2" NPT DF5-44-20-DG DTA600
ZP600 600 2.5  12 12.7 2” NPT DF5-44-20-DG DTA600
ZP750 750 2.2 14 14.8 3” FLG DF5-48-20-DG DTA1200
ZP900 900 2.0 16 16.2 3” FLG DF5-54-24-G DTA1200
ZP1050 1050 2.8 19 19.2 3” FLG DF5-56-24-G DTA1200
ZP1300 1300 5.3 23 25.7 3” FLG DF5-60-24-G DTA1800
ZP1500 1500 7.5 28 32.8 3” FLG DF5-60-24-G DTA1800
ZP1800 1800 7.0 32 35.4 3” FLG DF5-60-24-G DTA1800
ZP2200 2200 5.6 39 41.9 4” FLG DF5-64-4F-G DTA2400
ZP2600 2600 10.3 45 50.7 4” FLG DF5-68-4F-G DTA3000
ZP3200 3200 2.8 53 52.5 6” FLG DF5-72-6F-G DTA4800
ZP3600 3600 4.0 58 59.4 6” FLG DF5-72-6F-G DTA4800
ZP4300 4300 4.4 70 70.4 6” FLG DF5-72-6F-G DTA4800

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.

ZP500

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP500 53  70 105  1,866

#BBD0E0 »

ZP600

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP600 55 71 108 2,111

ZP750

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP750 60 83 114 2,456

​ #BBD0E0 »

ZP900

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP900 60 83 114 2,472

ZP1050

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1050 64 84 113 2,981

ZP1300

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1300 66 85 118 3,576

ZP1500

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1500 80 93 116 5,359

ZP1800

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1800 80 93 116 5,359
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP500 53  70 105  1,866

#BBD0E0 »

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP600 55 71 108 2,111
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP750 60 83 114 2,456

​ #BBD0E0 »

MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP900 60 83 114 2,472
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1050 64 84 113 2,981
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1300 66 85 118 3,576
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1500 80 93 116 5,359
MODEL DIMENSIONS (INCHES) WEIGHT
LBS
H W D
ZP1800 80 93 116 5,359