4-way reversible valve DSF-11 for heat pumps

4-way reversing valve DSF-11

The DSF-11 four-way reversing valve is a high-quality component designed for heat pumps and air conditioning systems. It provides reliable control of the refrigerant flow direction, allowing the system to operate efficiently in both cooling and heating modes.

Features of 4-way reversing valve DSF-11

• Four tube connections:
  • Three larger diameter copper connections are positioned on the same side.
  • A smaller connection is located on the opposite side.
  • The middle connection is the permanent suction line.
  • The small connection is the permanent pressure line.
• Solenoid pilot valve with coil:
  • Allows switching of refrigerant flow direction when electrical power is applied.
  • Two switching positions – no intermediate positions.

Fig. 1. Four-way reversible valve DSF-11 in heating and cooling modes.

Operation of 4-way reversible valve DSF-11

Situation 1: Coil is powered

1. The high pressure reaches the right chamber of the valve mechanism.
2. The pressure in the left chamber is discharged through the suction line.
3. The valve moves to the left, opening the main paths for refrigerant flow.

Situation 2: Coil is disconnected

1. The high pressure reaches the left chamber of the valve.
2. The pressure in the right chamber is discharged through the lower connection.
3. The valve moves to the right, redirecting the flows.

Advantages and reliability

• Reducing pressure fluctuations: Ensures stable and efficient valve operation.
• Reliable switching: The valve mechanism uses pressure differences between the high and low pressure sides.
• Compatibility with different systems: The valve integrates easily into hot gas and suction lines.

Assembly and use

1. Soudare: Use copper holes and hard glue ("Silfos 15"). During gluing, it is recommended to cool the valve with a damp cloth to prevent overheating.
2. System integration:
   • Hot gas lines connect to the small connection.
   • Suction lines — at the large connection.
3. Application:
   • Suitable for "one to one" systems, used in "air-to-air" heat pumps and air conditioning systems.
   • It is effective for reversing the circuit and defrosting evaporators.

4-way reversible valve DSF-11. Technical characteristics

• Material: High quality copper.
• Diameter of tube connections: Medium — permanent suction line, small — pressure line.
• Operating modes: Switching between heating and cooling.

Product name	4-way reversing valve DSF-11
net weight	0.4 kg
Rezistență la vibrații [m/с²]	19.6 m/s²
Product group	Four-way reversing valve
Intervalul de temperatură ambient [°C], [Max]	55 °C
Intervalul de temperatură ambient [°C], [Min]	-20 °C
Intervalul de temperatură ambient [°F], [max.]	131 °F
Intervalul de temperatură ambient [°F], [min.]	-4 °F
Intervalul de temperatură de funcționare [°C] [Max]	120 °C
Intervalul de temperatură de funcționare [°C] [Min]	-20 °C
Intervalul de temperatură de funcționare [°F] [max.]	248 °F
Intervalul de temperatură de funcționare [°F] [min.]	-4 °F
Coil	Not
Quantity in package	32 pc
Max. OPD [psig]	450 psig
Max. OPD [bar]	31 bar
Max. volum de scurgere [cm³/min]	1500 cm³/min
Temperatura maximă a carcasei supapei [°C]	120 °C
Gross weight	0.4 kg
Min. OPD [bar]	3.43 bar
Name tip	DSF-11
Dimensiune conexiune pentru tubul de aspirație [inch]	5/8
Dimensiune conexiune pentru tubul de aspirație [mm]	16.03 mm
Dimensiune conexiune pentru evaporator/condenser [inch]	5/8
Dimensiune conexiune pentru evaporator/condenser [mm]	16,03
Capacitate de lucru R407C la Δp: 0,1 bar (condiție 1) [kW]	7.18 kW
Capacitate de lucru R407C la Δp: 0,1 bar (condiție 2) [kW]	6.63 kW
Capacitate de lucru R407C la Δp: 0,2 bar (condiție 1) [kW]	10.11 kW
Capacitate de lucru R407C la Δp: 0,2 bar (condiție 2) [kW]	9.34 kW
Capacitate de lucru R410A la Δp: 0,1 bar (condiție 1) [kW]	8.81 kW
Capacitate de lucru R410A la Δp: 0,1 bar (condiție 2) [kW]	7.94 kW
Capacitate de lucru R410A la Δp: 0,2 bar (condiție 1) [kW]	12.43 kW
Capacitate de lucru R410A la Δp: 0,2 bar (condiție 2) [kW]	11.2 kW
Dimensiune tub de evacuare [inch]	1/2
Dimensiune tub de evacuare [mm]	12,8 mm

4-way reversing valve DSF-11. Advantages of choice

• Energy efficiency: Reducing pressure losses increases system efficiency.
• Durability: Reliable construction ensures a long service life.
• fickle: Compatible with various cooling systems and heat pumps.

Order the DSF-11 4-way reversing valve today and ensure the smooth operation of your system!

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