Exam Question
(a) Skecth a thermostatic expansion control valve as fitted in a refrigeration system, labeling the component parts. State where the valve is located in the refrigeration system (8)
(b) Describe the operation of the control valve. (8)
Class 4 (4th Engineer)
MEKG
📅 Oct 2022
Reference Answer
### (a) Sketch and Location of Thermostatic Expansion Valve
A labeled cross-sectional sketch of a thermostatic expansion valve is required. The sketch should clearly illustrate the following component parts:
* **Valve Body**: Housing for all internal components.
* **Refrigerant Inlet**: Connection from the liquid line/receiver.
A labeled cross-sectional sketch of a thermostatic expansion valve is required. The sketch should clearly illustrate the following component parts:
* **Valve Body**: Housing for all internal components.
* **Refrigerant Inlet**: Connection from the liquid line/receiver.
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