Lett Air Conditioner Service Valve
Service Valve is suitable for airconditioner which works with R22, R407C, R410A as a refrigerant. Service Valve can be a checking valve to drain air and add refrigerant during maintaining, also be used in other refrigerating circle systems.
Function :
A/C service valve is the important component in split air conditioner, it is used to connect the outdoor unit and indoor unit, open and close refrigerant circuit, vacuumize and recharging.
Feature :
1. Connecting the outdoor unit and indoor unit, take the on-off action.
2. Easy operate.
3. Soft seal and rigidity seal ensure the air tightness.
4. Different sealing O-rings, available for different refrigerant.
5. Special design to prevent the valve stem from flying off.
Technical parameters :
1. Applicable refrigerants : freon like R134a, R22, R407C, R410A, R404A.
2. Appliable medium temperature : -30 ºC ~ +120 ºC
3. Max working pressure : 4.2MPa
Structure :
|
1 |
Valve cap |
| 2 | Stop collar |
| 3 | O-ring |
| 4 | Valve stem |
| 5 | Sealing cap |
| 6 | Nuts |
| 7 | Valve body |
| 8 | Copper tube |
| 9 | Dust-proof cap |
| 10 | Valve core |
| 11 | Swivel nut |
Specification :
|
Code |
Tube size |
Nominal D |
Sealing D |
Thread |
Thread of |
Thread of |
|
DG4 |
Φ6.35(Φ6) |
Φ4.8 |
Φ7.5 |
7/16-20UNF-2A |
M16×1 |
— |
|
DG8 |
Φ9.52(Φ10) |
Φ8 |
Φ7.5 |
5/8-18UNF-2A |
M16×1 |
7/16-20UNF-2A 1/2-20UNF-2A |
|
DG10 |
Φ12.7(Φ12) |
Φ10 |
Φ9.5 |
3/4-16UNF-2A |
M18×1 |
|
|
DG13 |
Φ15.88(Φ16) |
Φ13 |
Φ12.5 |
7/8-14UNF-2A |
M22×1 |
|
|
DG16 |
Φ19 |
Φ16 |
Φ15.5 |
1-1/16-14UNS-2A |
M25×1 |
|
|
DG20 |
Φ22.2(Φ22) |
Φ19 |
Φ19 |
1-1/4-12UN-2A |
M30×1 |
Overall dimension :
|
Code |
A (mm) |
B (mm) |
C (mm) |
H (mm) |
L (mm) |
S (mm) |
N (mm) |
|
DG4 |
23.5 |
— |
38 |
15 |
33 |
S17 |
— |
|
DG8 |
25.5 |
27.5 |
38 |
15 |
36.2 |
S22 |
S14/S17 |
|
DG10 |
29.5 |
28.5 |
38 |
18 |
42 |
S24/S26 |
S14/S17 |
|
DG13 |
34 |
30 |
44 |
18 |
46 |
S27/S29 |
S14/S17 |
|
DG16 |
40 |
31.5 |
44 |
22 |
54 |
S32 |
S14/S17 |
|
DG20 |
43 |
34 |
54 |
28 |
65 |
S40 |
S14/S17 |
Note : The length of the copper tube can be customized.