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 electricity consumed is for generating and treating compressed air. To reduce 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.
Linear Energy Savings
FLEX Series dryers automatically cycle (on /off) the refrigeration compressor in response to inlet load conditions. As the inlet air load is reduced, the power requirement to dry the air is matched in proportion to the demand. For example, at 60% inlet air load, a non-cycling dryer consumes 96% of the full load power consumption, a 4% energy savings. By comparison, at 60% inlet air load, the FLEX Series consumes only 60% of the full load power, a 40% energy savings.
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 serves 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.
Specifications
FLEX Series Models for North America
Dryer Model
Inlet Flow
Pressure Drop
Voltages
Inlet/Outlet Connections
Operating Power
SCFM
NM3/H
PSI
IN
KW
DFX 1.1
75
127
2.9
115/1/60
NPT 1"
0.54
DFX 1.2
100
170
3.0
115/1/60
NPT 1"
0.62
DFX 1.5-1
150
255
3.6
115/1/60
NPT 2"
1.04
DFX 2.1-4
200
340
2.2
460/3/60
NPT 2"
1.26
DFX 3.1
300
509
3.6
460/3/60
NPT 2"
1.99
DFX 4.5
450
765
3.0
460/3/60
NPT 2"
3.23
DFX 5.5
550
935
3.0
460/3/60
NPT 2"
3.42
DFX 8.1
800
1300
3.7
460/3/60
FLG 3"
4.30
DFX 10.1
1000
1700
5.0
460/3/60
FLG 3"
5.84
DFX 12.5
1250
2150
4.6
460/3/60
FLG 4"
7.60
DFX 15.1
1500
2550
3.9
460/3/60
FLG 4"
9.00
DFX 20.1
2000
3400
3.1
460/3/60
FLG 4"
10.00
Performance data presented in accordance with ISO 7183 (Option A2) conditions: 100°F inlet temperature, 100°F ambient temperature and 100 psig conditions.
Performance data presented in accordance with ISO 7183 (Option A2) conditions: 100°F inlet temperature, 100°F ambient temperature and 100 psig conditions.
North America DFX 1.2
Flex Series Models
Dryer Model
Dimensions
Approx Weight
H
W
D
IN
MM
IN
MM
IN
MM
LB
KG
DFX 1.2
28
711
14
363
31
781
147
66.5
Performance data presented in accordance with ISO 7183 (Option A2) conditions: 100°F inlet temperature, 100°F ambient temperature and 100 psig conditions.
North America DFX 1.5-1
Flex Series Models
Dryer Model
Dimensions
Approx Weight
H
W
D
IN
MM
IN
MM
IN
MM
LB
KG
DFX 1.5-1
30
761
18
443
36
901
203
92
Performance data presented in accordance with ISO 7183 (Option A2) conditions: 100°F inlet temperature, 100°F ambient temperature and 100 psig conditions.
Global (EN)
