The refrigerant must be clear and dry before entering into the expansion valve in the refrigerating recycle system, otherwise the contaminant will cause jam for expansion valve. And will cause ice jam if have the water. In order to prevent the above two bad results, we need to install and filter drier before the refrigerant enters in to the expansion valve. It filtrate the scrap iron and welding slag. And dry the water in system.
|
Type
|
Connection port (in)
|
Liquid Refrigeration Quantity
|
A(mm) (±2)
|
B(mm) (±0.5)
|
|
Welding port
|
Thread size
|
R22
|
R134a
|
R410A/R507
|
|
PRE-052
|
|
1/4.
|
8
|
7
|
5
|
110
|
64
|
|
PRE-052S
|
1/4.
|
|
8
|
7
|
5
|
110
|
|
PRE-053
|
|
2/8.
|
19
|
18
|
14
|
110
|
|
PRE-053S
|
3/8.
|
|
19
|
18
|
14
|
110
|
|
PRE-082
|
|
1/4.
|
8
|
7
|
5
|
136
|
64
|
|
PRE-082S
|
1/4.
|
|
8
|
7
|
5
|
110
|
|
PRE-083
|
|
3/8.
|
21
|
19
|
14
|
147
|
|
PRE-083S
|
3/8.
|
|
21
|
19
|
19
|
136
|
|
PRE-084
|
|
1/2.
|
29
|
26
|
20
|
152
|
|
PRE-084S
|
1/2.
|
|
29
|
26
|
20
|
136
|
|
PRE-163
|
|
3/8.
|
24
|
22
|
16
|
168
|
78
|
|
PRE-163S
|
3/8.
|
|
24
|
22
|
16
|
156
|
|
PRE-164
|
|
1/2.
|
33
|
30
|
22
|
175
|
|
PRE-164S
|
1/2.
|
|
33
|
30
|
22
|
156
|
|
PRE-165
|
|
5/8.
|
47
|
43
|
30
|
185
|
|
PRE-165S
|
5/8.
|
|
47
|
43
|
30
|
158
|
|
PRE-304
|
|
1/2.
|
34
|
31
|
22
|
250
|
78
|
|
PRE-304S
|
1/2.
|
|
34
|
31
|
22
|
238
|
|
PRE-305
|
|
5/8.
|
49
|
45
|
33
|
258
|
|
PRE-305S
|
5/8.
|
|
49
|
45
|
33
|
238
|
|
PRE-307S
|
7/8.
|
|
65
|
59
|
43
|
241
|
|
PRE-415
|
|
5/8.
|
55
|
53
|
37
|
255
|
90
|
|
PRE-415S
|
5/8.
|
|
55
|
53
|
37
|
238
|
|
PRE-417S
|
7/8.
|
|
100
|
91
|
65
|
250
|
Indication: the size change is not informing, take plant production blueprint as.
