Updated At: 2025-11-30
H-type thermostatic expansion valve_0

#10031 Refrigeration throttle valve

H-type thermostatic expansion valve

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  Application Areas: Automotive thermal management systems; Primary Functions: Throttling and pressure reduction, regulating refrigerant flow in the cooling system, maintaining a certain degree of superheat, and preventing liquid slugging and abnormal overheating.

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 the temperature at the sensing element and the low-side pressure;

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

6. Charge Type: Gas charge / Cross charge;

7. Connection Method: Clamp connection;

8. Pressure Balancing Type: External equalizer;

9. Sensing Method: Internal sensing;

10. Installation Location: Evaporator assembly;

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

12. Refer to the attached documents for detailed installation port dimensions.

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