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Auto Grain
Refrigerant Air Dryer
Technical Features And Dimensions of Dryers
Refrigerants Type R22, R134a, R404a
|
Model
|
Flow rate
|
Connection
|
Dimensions [mm]
|
Wt
|
|
[Nm3/h]
|
[Scfm]
|
In-Out
|
A
|
B
|
C
|
D
|
E
|
F
|
G
|
[Kg]
|
|
RD10
|
20
|
12
|
1/2"BSP-F
|
660
|
510
|
690
|
60
|
360
|
480
|
544
|
60
|
|
RD20
|
34
|
20
|
1/2"BSP-F
|
660
|
510
|
690
|
60
|
360
|
480
|
544
|
60
|
|
RD30
|
51
|
30
|
1/2"BSP-F
|
660
|
510
|
690
|
60
|
360
|
480
|
544
|
60
|
|
RD60
|
102
|
60
|
3/4"BSP-F
|
790
|
560
|
700
|
60
|
390
|
530
|
584
|
95
|
|
RD81
|
138
|
81
|
1"BSP-F
|
800
|
660
|
810
|
65
|
490
|
630
|
694
|
130
|
|
RD100
|
187
|
110
|
1"BSP-F
|
800
|
660
|
810
|
65
|
490
|
630
|
694
|
130
|
|
RD150
|
245
|
150
|
1"BSP-F
|
976
|
826
|
1076
|
100
|
650
|
788
|
944
|
180
|
|
RD200
|
340
|
200
|
1.1/2"BSP-F
|
976
|
826
|
1076
|
100
|
650
|
788
|
944
|
190
|
|
RD250
|
425
|
250
|
1.1/2"BSP-F
|
976
|
826
|
1076
|
100
|
650
|
788
|
944
|
190
|
|
RD300
|
510
|
300
|
1.1/2"BSP-F
|
1200
|
1100
|
1350
|
170
|
860
|
1050
|
1200
|
360
|
|
RD360
|
611
|
360
|
2"BSP-F
|
1200
|
1100
|
1350
|
170
|
860
|
1050
|
1200
|
380
|
|
RD400
|
710
|
418
|
2"BSP-F
|
1200
|
1100
|
1350
|
170
|
860
|
1050
|
1200
|
430
|
|
RD500
|
849
|
500
|
2"BSP-F
|
1200
|
1100
|
1350
|
170
|
860
|
1050
|
1200
|
480
|
|
RD750
|
1274
|
750
|
2.1/2"BSP-F
|
1530
|
1375
|
1600
|
137
|
1100
|
1325
|
1445
|
650
|
|
RD100
|
1698
|
1000
|
3"BSP-F
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
Working Conditions
- Max Ambient temperature +38°C
- Minimum ambient temperature +1°C
- Maximum inlet air temperature +45°C
- Nominal inlet air pressure 7 Bar
- Maximum inlet air pressure: 16 Bar
- Out let air pressure drop P: 0.2 Bar
- Maximum electric power:
- Noise level < 70dbA
- At nominal compressed air inlet pressure 7 bar, ambient temp 38°C & inlet temperature of 45°C conditions - achived pressure Dew point +3°C / ADP - 22°C
- Max inlet air temp to the dryer +45°C and above we recommend after cooler to reduce the inlet air temperature.
|
Correction factor according to working pressure
|
|
Bar
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
|
Fact
|
0.54
|
0.67
|
0.77
|
0.85
|
0.93
|
1
|
1.06
|
1.11
|
1.15
|
1.18
|
1.21
|
1.23
|
1.25
|
1.27
|
1.28
|
|
Correction factor according to ambient temp
|
|
Ambient Temperature °C
|
38
|
40
|
42
|
|
Factor
|
1
|
0.9
|
0.8
|
|
Correction factor according to inlet air temp
|
|
Inlet Air Temperature °C
|
45
|
50
|
55
|
|
Factors
|
1
|
0.85
|
0.75
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Puronics System Refrigerant Dryers
Functioning principle of the dryer.
The dryers of the RD series are basically made by two different circuits. A compressed Air circuit divided into two, heat exchangers and a refrigerating circuit. The hot and humid input compressed air passes through the air to air exchanger and then reaches the evaporator (air-freon exchanger), where it is cooled by the refrigerating circuit until it reaches the present dew point, thus condensing the humidity it contains. IN the moisture separator the condensed humidity is then separated and removed by auto drain.
The advantages of such a system are essentialy two, first of all the air input is pre - cooled , so the refrigerating system can be sized in order to guarantee a more limited thermal jump, with an energy saving of about 40-50%, and secondly no cold air is conveyed through the compressed air line, thus preventing overall the formation of condensate on the external surface of the piping.
Air And Refrigerating Gas Flow Diagram
- Refrigerating Compressor
- Condenser Unit
- Dehydration Filter
- Cappilary Tube/Expansion Valve
- Evaporator
- Liquid Seprator
- Condensor Unit Fan
- By-Pass System (Not in the Scope of supply)
- Air-Air Heat Exchanger
- Electronic Controller
- Probe (Dewpoint)
- Moisture Seperator
- Ball Valve
- Auto Drain Valve
- By Pass Solenoid Valve
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