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

#10034 Refrigeration throttle valve

F-type thermostatic expansion valve

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 Application: Automotive thermal management systems; Primary function: 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 bulb 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;

7. Connection type: Threaded connection;

8. Pressure balancing type: External balance / Internal balance;

9. Sensing method: External 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. Detailed installation port dimensions are provided in the attachment.

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