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**Product Specifications:**
- **Model No.:** DSF-4
- **Power Supply:** AC Solenoid Valve
- **Usage:** Refrigerant Control
- **Standard:** GB (Chinese National Standard)
- **Application:** Industrial and Household Use
- **Automation:** Fully Automated
- **Certifications:** RoHS, TUV, UL, CE
- **Model Number:** OEM for Each Reversing Valve
- **Trademark:** Tianda
- **Specification:** 505 x 355 x 215 mm
- **Origin:** Chuzhou, China
- **HS Code:** 8481802910
**Applications:**
1. Conversion between refrigeration and heating in household heat pump air conditioners.
2. Defrost switch devices in various refrigerators and dehumidifiers.
3. Energy-saving circuit conversion for freezers and showcase windows.
**Technical Requirements:**
- Nominal capacity: 4.0 kW
- Suitable power: 0.75–1.5 HP
- Port size: 8.0 mm
- High-pressure side port size (inch): 5/16, 3/8
- Low-pressure side port size (inch): 3/8
- Internal leakage: ≤1.0 L/min
- Applicable refrigerants: R22, R407C, R134a, R410A
- Maximum working pressure:
- R22, R407C, R134a: 3.0 MPa
- R410A: 4.15 MPa
- Operating pressure differential: Max: 2.5/3.1 MPa, Min: 0.2 MPa
- Coil voltage options: AC 24V, 100V, 115V, 120V, 220V/240V, 277V (50Hz/60Hz), DC 24V
- Coil power: 5–8W
- Maximum coil temperature: 130°C
- Fluid temperature range: -20°C to 120°C
- Ambient temperature range: -20°C to +55°C
**Catalog Table:**
| Catalog No. | Port Size (mm) | Connection (inch) | O.P.D (MPa) | Internal Leakage (ml/min) | Power (TON) |
|-------------|----------------|-------------------|-------------|---------------------------|-------------|
| DSF-4U | Φ8 | 5/16, 3/8 | 3.0/4.15 | <1000 | 0.75–1.5 |
| DSF-4 | Φ8 | 5/16, 3/8 | 3.0/4.15 | <1000 | 0.75–1.5 |
| DSF-9U | Φ11.1 | 3/8, 5/16 | 3.0/4.15 | <1500 | 0.75–2 |
| DSF-9 | Φ11.1 | 3/8, 5/16 | 3.0/4.15 | <1500 | 0.75–2 |
| DSF-11 | Φ11.5 | 3/8, 1/2 | 3.0/4.15 | <2000 | 2–4 |
| DSF-11U | Φ11.5 | 3/8, 1/2 | 3.0/4.15 | <2000 | 2–4 |
| DSF-20 | Φ15.5 | 1/2, 5/8 | 3.0/4.15 | <4000 | 2–8 |
| DSF-20U | Φ15.5 | 1/2, 5/8 | 3.0/4.15 | <4000 | 2–8 |
| DSF-38 | Φ20 | 5/8, 3/4, 7/8 | 3.0/4.15 | <6000 | 6–12 |
| DSF-48 | Φ26 | 7/8, 1-1/8 | 3.0/4.15 | <8000 | 8–20 |
| DSF-140 | Φ41 | 5/16, 12/8 | 3.0/4.15 | <10000 | 40 |
| DRHF-4 | Φ8 | 3/8 | 3.0/4.15 | <1000 | 0.75–1.5 |
| DRHF-9 | Φ11 | 1/2 | 3.0/4.15 | <1500 | 0.75–3 |
| DRHF-20 | Φ15.5 | 5/8 | 3.0/4.15 | <4000 | 2–8 |
| DRHF-38 | Φ20 | 7/8 | 3.0/4.15 | <6000 | 6–12 |
| DRHF-48 | Φ26 | 1-1/8 | 3.0/4.15 | <8000 | 8–20 |
**Coil Options:**
- **Inserted Coil:** AC 220V, 115V–120V, 100V–110V, 24V, 220V–240V
- **Wire Coil:** AC 220V, 115V–120V, 100V–110V, 24V, 220V–240V, 265V–277V
**Product Images:**
[Image 1: 4 Way Reversing Valves (DSF-4) Used in Air Conditioner]
[Image 2: 4 Way Reversing Valves (DSF-4) Used in Air Conditioner]
[Image 3: 4 Way Reversing Valves (DSF-4) Used in Air Conditioner]
[Image 4: 4 Way Reversing Valves (DSF-4) Used in Air Conditioner]
[Image 5: 4 Way Reversing Valves (DSF-4) Used in Air Conditioner]
This product is ideal for use in air conditioning systems, refrigeration units, and energy-efficient applications where reliable refrigerant control is essential. The DSF-4 model is particularly suited for both industrial and residential settings due to its durability and wide range of compatibility.
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