Brand Name: dunan Brand
Model Number: DSF(S)series
Place of Origin: Zhejiang, China (Mainland)
Features
DSF series brass four-way valves are suitable for central, split, window and other heat pump systems;
achieve the conversion of cooling and heating mode by switching the cooling medium flow path.
Features
using pilot valve controls the main valve, commutation and reliable;
can instantly change direction and operation at minimum pressure, so the pressure drop through the four-way valve and internal leakage is minimized;
way valve operation process flow of reasonable size, fluid turning small changes in the valve, the flow is short, etc., help to reduce fluid resistance, increase capacity of the system and energy efficiency;
product long life, wide coverage.
Scope
for cooling medium: R22, R407C, R410A, R32 and the like;
Applicable medium temperature: -30 ℃ ~ + 120 ℃;
Ambient temperature: -30 ℃ ~ + 70 ℃;
Relative humidity: 95% RH or less.
Product Series |
Model No |
Diameter mm |
R22 |
Pressure difference MPa |
Piping Specifications in |
|||
kW |
TR |
Max |
Min |
D tube |
ESC tube |
|||
DSF Series |
4 |
8 |
4.92 |
1.41 |
3.1 |
0.25 |
5/16 |
3/8 |
9 |
11.1 |
9.85 |
2.81 |
0.3 |
3/8 |
1/2 |
||
11 |
11.5 |
12.5 |
3.57 |
1/2 |
5/8 |
|||
20 |
15.5 |
21.1 |
6.03 |
1/2 |
3/4 |
|||
34 |
19.2 |
42.2 |
12.05 |
3/4 |
7/8 |
|||
38 |
23 |
52.8 |
15.08 |
7/8 |
9/8 |
|||
50 |
24 |
63 |
18 |
7/8 |
9/8 |
|||
70 |
26 |
70.3 |
20 |
1 |
5/4 |
|||
105 |
34.5 |
106 |
30.3 |
5/4 |
3/2 |
|||
140 |
41 |
141 |
40.3 |
3/2 |
7/4 |
|||
180 |
46.4 |
176 |
50.3 |
3/2 |
17/8 |
|||
210 |
50 |
211 |
60.3 |
7/4 |
17/8 |
Of Coil Parameter
Forms
|
series
|
Rated voltage V
|
Hz
|
Lead type coil
|
DXQ Series
|
AC265~277,AC220~240,AC208~240,AC200,AC110~120,AC100
|
50/60
|
DC12,DC15.4,DC24
|
/
|
||
Inserted chip coil
|
DC12,DC24,AC24
|
50/60
|
Model No.
|
A mm |
B mm |
C mm |
L1 mm |
L2 mm |
L3 mm |
L4 mm |
L5 mm |
H1 mm |
H2 mm |
H3 mm |
H4 mm |
H5 mm |
DSF-4
|
9.6
|
8.1
|
21
|
94
|
12
|
12
|
29
|
42
|
10
|
8.5
|
50
|
62
|
102
|
DSF-9
|
12.8
|
9.6
|
26.3
|
117
|
16
|
16
|
32.5
|
52
|
10
|
10
|
59
|
71
|
119
|