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The DSF series 4-way reversing valve is applicable
to all kinds of heat pump systems. It changes the flow
path of refrigerants by controlling the pilot valve to
switch the mode between cooling and heating.
Features
·Thermoset material molded electromagnetic coil, better water resistance, greater electric strength, and more
reliable insulation;
·Energy-saving bi-stable series has less temperature rise, lower noise, and slighter vibration;
·Stainless steel series has better sealing performance, higher efficiency, lighter weight, better vibration resistance,
and more environmentally friendly manufacturing processes, and is manufactured in a more environmentally
friendly process.
Approvals
Declaration according to PED, LVD, VDE, and UL
Technical Data
Applicable Refrigerants: R134a, R407C, R404A, R410A, and R32
Applicable Relative Humidity: ≤95%
Medium Temperature: -30°C~+130°C
Ambient Temperature: -30°C~+70°C
Max. Operating Pressure Difference: 4.5 MPa
Â
Model
Port
Kv
Connection
Operating Pressure
Difference
D
E,S,C
[mm]
[m3/h]
[mm]
[in.]
[mm]
[in.]
Max
[MPa]
Min
[MPa]
DSF-4
8
1.7
7.94
5/16
9.52
3/8
3.5
0.3
DSF-9
11.1
3.0
9.52
3/8
12.70
1/2
DSF-9B
11.1
3.0
9.52
3/8
12.70
1/2
DSF-9C
11.1
3.0
9.52
3/8
12.70
1/2
DSF-9E
11.1
3.0
9.52
3/8
12.70
1/2
DSF-11
11.5
3.0
12.70
1/2
15.87
5/8
DSF-11B
11.5
3.0
12.70
1/2
15.87
5/8
DSF-11E
11.5
3.0
12.70
1/2
15.87
5/8
DSF-11I
11.5
3.0
12.70
1/2
15.87
5/8
DSF-20
15.5
7.2
12.70
1/2
19.05
3/4
DSF-34D
19.2
12.3
19.05
3/4
22.22
7/8
DSF-34H
19.2
12.3
19.05
3/4
22.22
7/8
DSF-38
23.0
13.4
22.22
7/8
28.57
9/8
DSF-50
24.0
13.9
22.22
7/8
28.57
9/8
DSF-70
26.0
28.7
25.40
1
31.75
5/4
DSF-70B
26.0
28.7
25.40
1
31.75
5/4
DSF-105
34.5
39.1
31.75
5/4
38.10
3/2
DSF-105D
34.5
39.1
31.75
5/4
38.10
3/2
DSF-140
41.0
58.5
38.10
3/2
44.45
7/4
DSF-180
46.4
70.4
38.10
3/2
53.97
17/8
DSF-210
50.0
80.2
44.45
7/4
53.97
17/8
The DSF series 4-way reversing valve is applicable
to all kinds of heat pump systems. It changes the flow
path of refrigerants by controlling the pilot valve to
switch the mode between cooling and heating.
Features
·Thermoset material molded electromagnetic coil, better water resistance, greater electric strength, and more
reliable insulation;
·Energy-saving bi-stable series has less temperature rise, lower noise, and slighter vibration;
·Stainless steel series has better sealing performance, higher efficiency, lighter weight, better vibration resistance,
and more environmentally friendly manufacturing processes, and is manufactured in a more environmentally
friendly process.
Approvals
Declaration according to PED, LVD, VDE, and UL
Technical Data
Applicable Refrigerants: R134a, R407C, R404A, R410A, and R32
Applicable Relative Humidity: ≤95%
Medium Temperature: -30°C~+130°C
Ambient Temperature: -30°C~+70°C
Max. Operating Pressure Difference: 4.5 MPa
Â
Model
Port
Kv
Connection
Operating Pressure
Difference
D
E,S,C
[mm]
[m3/h]
[mm]
[in.]
[mm]
[in.]
Max
[MPa]
Min
[MPa]
DSF-4
8
1.7
7.94
5/16
9.52
3/8
3.5
0.3
DSF-9
11.1
3.0
9.52
3/8
12.70
1/2
DSF-9B
11.1
3.0
9.52
3/8
12.70
1/2
DSF-9C
11.1
3.0
9.52
3/8
12.70
1/2
DSF-9E
11.1
3.0
9.52
3/8
12.70
1/2
DSF-11
11.5
3.0
12.70
1/2
15.87
5/8
DSF-11B
11.5
3.0
12.70
1/2
15.87
5/8
DSF-11E
11.5
3.0
12.70
1/2
15.87
5/8
DSF-11I
11.5
3.0
12.70
1/2
15.87
5/8
DSF-20
15.5
7.2
12.70
1/2
19.05
3/4
DSF-34D
19.2
12.3
19.05
3/4
22.22
7/8
DSF-34H
19.2
12.3
19.05
3/4
22.22
7/8
DSF-38
23.0
13.4
22.22
7/8
28.57
9/8
DSF-50
24.0
13.9
22.22
7/8
28.57
9/8
DSF-70
26.0
28.7
25.40
1
31.75
5/4
DSF-70B
26.0
28.7
25.40
1
31.75
5/4
DSF-105
34.5
39.1
31.75
5/4
38.10
3/2
DSF-105D
34.5
39.1
31.75
5/4
38.10
3/2
DSF-140
41.0
58.5
38.10
3/2
44.45
7/4
DSF-180
46.4
70.4
38.10
3/2
53.97
17/8
DSF-210
50.0
80.2
44.45
7/4
53.97
17/8
Model NO.: DSF
Power Supply: AC Solenoid Valve
Usage: Temperature Control, Flow Control
Application: Industrial Usage, Household Usage
Trademark: DunAn
Specification: Brass
Origin: China
Model NO.: DSF
Power Supply: AC Solenoid Valve
Usage: Temperature Control, Flow Control
Application: Industrial Usage, Household Usage
Trademark: DunAn
Specification: Brass
Origin: China
Application