ZMA Series

3-177 SCFM

Modular
Desiccant Dryers
Heatless Regeneration

www.zeks.com
 Modular
Desiccant Dryers
The Need For High ZMA Series
Quality Compressed Air... Heatless Regeneration
Compressed air is a versatile energy resource ZEKS ZMA Modular Desiccant Dryers are a compact, fully integrated drying
that’s required or preferred for many production solution ideally suited to point-of-use and small compressed air applications
where very high quality air is needed. They enable delivery of ISO Class 2
and finishing processes. Powering pneumatic dew point (optional ISO Class 1) to prevent corrosion, minimize production
tools, equipment and process machinery, disruptions, and eliminate losses due to moisture or
driving spray and coating applications, and contamination in the compressed air supply.
actuating valves and instruments are among The ZMA Series includes eleven models,
its many uses. For these to operate reliably all with features that enhance reliability while
enabling dryer performance to be monitored,
and at peak efficiency, the compressed air and serviceable parts to be maintained.
supply must be clean and dry.

Contaminants present at the intake of an air

compressor will effect compressed air quality.
Advanced Controller
Provides precision control of
The compression process is what causes dryer operating cycle and visual
concentrations of water, compressor lubricant indication of dryer status.
and particulate that are in air to increase
to levels that can damage tools and Proprietary Flow Valve
instruments, spoil finished product, and Controls directional flow
increase maintenance requirements. To make for alternating drying and
regeneration functions.
compressed air useable, installation of drying
and filtration equipment is necessary.
Internal/External Anodized Towers
Provides exceptional corrosion
resistance. External surface powder
coated for additional protection.

High Strength Desiccant

Resists dusting and breakdown
for enhanced dryer performance
and afterfilter life.

Pressure Gauges
Present immediate visual
indication of dryer operation.

Purge Mufflers
Provide noise attenuation (<75 dBA)
for expanded point-of-use applicability.

Durable Purge Valves

All-stainless steel angle seat
design. Application-proven.

Multi-Function Base
Enables forklift placement
while protecting dryer components.
Can be angled for wall-mounting (3-15ZMA).

Filtration
Prefilter and afterfilter provided to
ensure long dryer life and air quality.
 www.zeks.com

ZMA Dryer Operation

Through an operating cycle that enables simultaneous
air drying and heatless desiccant regeneration,
4 ZMA Series dryers deliver a continuous supply of
A high quality compressed air.

DRYING PROCESS
1 Wet, untreated compressed air flows from the
3 coalescing prefilter into the ZMA dryer.

2 Purge valves open or close in a timed cycle to

direct the flow of incoming compressed air into
the tower that contains regenerated desiccant.

3 Desiccant media adsorbs moisture as the air

flows through it, making the air clean and dry.

4 High quality air exits the dryer and particulate

after filter and continues on to downstream
processes for safe use.
B
DESICCANT REGENERATION PROCESS
A A small portion of the dried air is directed into
the offline tower.

B The air, now expanded to atmospheric pressure,

2 strips away the moisture that was held on the
surface of the desiccant media in the previous
operating cycle.

C Purge valves are configured to enable the purge

air flow to exit the dryer, carrying moisture and
contaminants out of the dryer.
1
C

Microprocessor Dryer Controls

3-15ZMA
Provides precision control of dryer operating cycle and real-time
visual indication of operating cycle status.

24-177ZMA
Advanced microprocessor controls all dryer functions and enables
user-access to adjustable parameters. Includes Compressor Interlock
which links purge air consumption to air compressor operation.
• Alarms and Alarm History • RS485 Remote Communications
• Maintenance Reminders • Dryer Step and Time Counter
 ZMA Series Modular Desiccant Dryers
Save Energy With Moisture Load Control (24–177ZMA)
For applications where periods of reduced air demand or low moisture loading
are common, significant energy savings can be realized with the optional
Moisture Load Control (MLC). MLC commands the purge valves to remain
closed during periods of low compressed air system usage to reduce purge
air consumption. MLC is a field-installed option.

-100°F Dew Point Performance (24–177ZMA)

Where ISO Class 1 compressed air quality is needed, ZMA dryers can be fit to
achieve -100°F dew point. This feature is also available as a field-installed kit.

Technical Specifications
CAPACITY PURGE DIMENSIONS** DRYER DESICCANT
SCFM* VOLUME IN. WEIGHT PER TOWER ELECTRICAL
MODEL -40°F -100°F scfm W D H LBS. LBS. VOLTAGE
3ZMA 3 NA 0.5 9.4 8.3 16.7 24.2 1.5 115/1/60
9ZMA 9 NA 1.6 9.4 8.3 32.4 39.7 4.7 115/1/60
15ZMA 15 NA 2.7 9.4 8.3 42.2 59.5 6.6 115/1/60
24ZMA 24 19 4.2 18.7 15.9 38.1 97.0 14.1 115/1/60
32ZMA 32 26 5.8 18.7 15.9 44.0 110.2 18.4 115/1/60
H
41ZMA 41 33 7.4 18.7 15.9 51.9 132.2 24.0 115/1/60
59ZMA 59 47 10.6 18.7 15.9 65.9 160.9 33.9 115/1/60
88ZMA 88 71 15.9 18.7 15.9 73.7 198.4 39.6 115/1/60
118ZMA 118 94 21.2 21.1 19.5 67.1 390.1 67.9 115/1/60
147ZMA 147 118 26.6 21.1 19.5 75.0 396.7 79.1 115/1/60
177ZMA 177 142 31.9 21.1 19.5 75.0 414.4 79.1 115/1/60
Performance data obtained as per ISO 7183, Table 2, Option A2. D W
* Pressure Dew Point (PDP) at 100 psig, 100 F inlet air, 100 F ambient air. ** Dimensions shown represent dryer without filters installed.
Maximum Working Pressure is 200 psig.
Optional equipment may alter dryer dimensions and weight.
Minimum Working Pressure is 60 psig.
Dimensions and weights are approximate.
Desiccant is factory-installed on all models.

Standard Features Optional Features

• Microprocessor Controller • Moisture Load Control (MLC) kit
Advanced: 24-177ZMA • -100°F Dew Point Performance kit
Standard: 3-15ZMA
• Purge control valve
• RS485 connectivity
• Extruded aluminum vessel(s)
• Tower pressure gauges (L / R)
• High Strength desiccant
• Coalescing prefilter
• Particulate afterfilter
• Stainless steel purge valves
ZEKS ZFCTM
• Exhaust mufflers prefilter and afterfilter are
• Stable, formed base standard on ZMA dryers.
Wall-mount (3ZMA-15ZMA)

ZEKS ZMA Modular Desiccant Dryers dryers are not designed, intended or approved for breathing air applications. 1302 Goshen Parkway
West Chester, PA 19380
Specifications, illustrative materials and descriptions contained herein were as accurate as known at the time this publication was
approved for printing. The company reserves the right to change specifications, discontinue models, equipment or design without Phone: 610-692-9100 800-888-2323
notice and without incurring obligation. The information set out in this brochure is for preliminary information only and is not intended
to constitute any representation or warranty by ZEKS to potential customers or to form the basis of a contract with any customer. Fax: 610-692-9192
Web: www.zeks.com

© 2020 ZEKS Compressed Air Solutions ZMA 0320