Description
EN
2 Description
Ingersoll Rand
desiccant dryers are designed to remove moisture vapour from compressed air. Providing pressure dewpoints of -40°C (-40°F)
or -70°C (-100°F) at specified conditions.
ISO8573.1 : 2001 Edition
Dewpoint Selected
Product Installed
ISO Classification
-40
o
C Pressure Dewpoint
GP + HE + Dryer + DP
ISO8573.1 : 2001 Class 3.2.2
-70
o
C Pressure Dewpoint
GP + HE + Dryer + DP
ISO8573.1 : 2001 Class 3.1.2
ISO8573.1 1991 Edition
Dewpoint Selected
Product Installed
ISO Classification
-40
o
C Pressure Dewpoint
GP + HE + Dryer + DP
ISO8573.1 : 1991 Class 2.2.2
-70
o
C Pressure Dewpoint
GP + HE + Dryer + DP
ISO8573.1 : 1991 Class 2.1.2
The dryers comprise of extruded aluminium columns. Each column contains twin chambers filled with desiccant material that dries the
compressed air as it passes through. One chamber is operational (drying), whilst the opposite chamber is regenerating by Pressure Swing
Adsorption (PSA).
Pressure Swing Adsorption (PSA)
A small amount of the dried compressed air is used to regenerate the spent desiccant bed. Dried air at line pressure is expanded to atmospheric
pressure through the regenerating column.
Energy Management System (EMS) - optional
If EMS is fitted, this will adjust the dryer's cycle in line with the moisture loading placed upon it, by constantly monitoring the processed air
moisture content. Also available as a retrofit to all dryer models.
2.1 Technical Specification
This specification is valid when the equipment is located, installed, operated, and maintained as specified within this user guide.
Stated flows are for operation at 7 bar g (102 psi g) with reference to 20ºC (68ºF), 1 bar (a) (14.5 psi), 0% relative humidity. For flows at other
conditions, apply the correction factors shown..
Correction Factors
Mininmum Drying Capacity = Inlet Flow Requirement x CFT x CFP
Temperature Correction Factor (CFT)
Pressure Correction Factor (CFP)
Model
Pipe Size
m
3
/min
m
3
/hr
cfm
D41IM
1/2”
0.68
40.8
24
D54IM
1/2”
0.91
54.6
32
D71IM
1/2”
1.19
71.4
42
D90IM
3/4”
1.5
90
53
D110IM
3/4”
1.84
110.4
65
D150IM
1”
3
180
106
D180IM
1”
3
180
106
D221IM
1”
3.68
220.8
130
D299IM
1”
4.98
298.8
176
Max Inlet
Temperature
o
C
25
30
35
40
45
50
o
F
77
86
95
104
113
122
CFT
1.00
1.00
1.00
1.03
1.14
1.37
Min Inlet
Pressure
bar g
4
5
6
7
8
9
10
11
12
13
14
15
16
psi g
58
73
87
102
116
131
145
160
174
189
203
218
232
CFP
1.59
1.33
1.14
1.00
0.88
0.80
0.72
0.67
0.61
0.57
0.53
0.50
0.47
