Engineering · Auxiliary — Refrigeration
The thermostatic expansion valve (TXV) in a refrigeration system:
- ACompresses the refrigerant vapor
- BMeters liquid refrigerant into the evaporator and drops its pressure✓ Correct
- CCondenses the high-pressure gas
- DStores liquid refrigerant
Explanation
The expansion valve is the metering/pressure-reducing device: it throttles high-pressure liquid into the low-pressure evaporator and regulates flow to maintain proper superheat.
Authority: Auxiliary Machinery (USCG engineering topic)
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