TYPES OF EXPANSION VALVES AND ITS FUNCTIONS

on

 There are six (6) types of expansion VALVES:

1) Thermal or thermostatic expansion valve

2) Manual valve

3) capillary tube

4) automatic valve

5) electronic expansion valve 

6) float valve


Function of expansion valve:

    It controls the superheating (evaporator out put temperature). The expansion valve is positioned to decrease the refrigerant fluid pressure. As a result of the pressure drop, the fluid is cooled and then sprayed itno evaporator. An expansion valve is always connected to the evaporator.






   THERMAL EXPANSION VALVE




 
MANUA EXPANSION VALVE 



  
CAPILLARY TUBE 
      



AUTOMATIC EXPANSION VALVE 





ELECTRONIC EXPANSION VALVE 




FLOAT EXPANSION VALVE 

























Comments

Post a Comment