2.1.6. Expansion Valve

Try these first

1. 1.

   What is the primary function of an expansion valve?

   Hint

   Think about how it controls pressure.

2. 2.

   Name one type of expansion valve.

   Hint

   This type uses temperature to control flow.

3. 3.

   What is the role of the expansion valve in VARS?

   • To increase refrigerant pressure
   • To measure system temperature
   • To reduce refrigerant pressure

   Hint

   Think about why we need to lower the pressure.

4. 4.

   True or False: The failure of the expansion valve can lead to insulation freezing in the refrigeration system.

   • True
   • False

   Hint

   Consider the effects of heat exchange and freezing.

5. 5.

   Analyze a scenario where the expansion valve is blocked. Describe the resulting changes in the refrigeration cycle and the overall system performance.

   Hint

   Consider how the cycle operates and where disruptions occur.

6. 6.

   Design a simple troubleshooting process for an expansion valve malfunction in an industrial application.

   Hint

   What checks would help confirm proper functioning?