Application Areas: Automotive Thermal Management Systems; Primary Functions: Integrates the functions of a thermostatic expansion valve and a solenoid valve to throttle and reduce pressure, regulate refrigerant flow in the cooling system, maintain a specific degree of superheat, prevent liquid slugging and abnormal overheating, and control the on/off state of the refrigerant circuit through the solenoid valve’s opening and closing actions.

Technical Specifications

1. Compatible Refrigerants: HFC-134a / HFC-1234yf;

2. Lubricants Used: PAG / POE;

3. Operating Ambient Temperature: -40℃ to 120℃;

4. Operating Principle: Controls refrigerant flow based on temperature at the sensing element and pressure on the low-pressure side;

5. Adjustment Mechanism: Adjusted via an internal regulating screw in the valve body—turning clockwise increases superheat, while turning counterclockwise decreases it;

6. Charge Type: Gas charge / Cross charge;

7. Installation Location: Evaporator assembly;

8. Installation Orientation: Must not be installed facing downward; rotation up to 90° horizontally from the downward position is permitted;

9. Valve Type: Normally Open / Normally Closed;

10. Rated Voltage: DC 12V;

11. Coil Power Consumption: ≤10W;

12. Operating Voltage Range: 9V–16V;

13. External Leakage: <2g/year @ 2.0MPa;

14. Internal Leakage (Solenoid Valve): ≤100mL/min at 10.3bar;

15. Insulation Resistance: >10MΩ for 1 minute (DC 500V);

16. Maximum Opening Pressure Differential: ≥22bar (at ambient temperature of 20.5℃ and opening voltage of 9V);

17. Installation port dimensions are detailed in the attached documentation.